Seiki SE50UY04 3840x2160 50" TV ($1300)

geok1ng

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While the chinese true 120hz does not arrive i pulled the trigger on a 39" seiki. amazon and dhl delivered in in brazil in less than 10 days!
i knew it would a pita to setup, but it is much worse than i expected.
i have a 7950 with HDMI and passive displayport adapter, both with the hdmi cable that comes with the tv:

using the DP adapter i can run 1080p 30hz and 1080 60hz, without artifacts.
using the hdmi port on the vga i can ocasionally get 2160p 30hz and 2160p 24hz, but the image is red with flickering and grainy as hell. the worst thing is i still havent figured it out how to reliably turn off tv and pc and make the desktop start at 2160p, with or without red grainy flickering image.

i ordered an active mini displayport 1.2 to hdmi 1.4a adapter but meanwhile i need help:

already patched AMD drivers and removed the pixel click limit
toasty CRU did not help a lot, plus windows force detects the tv time and again
custom .inf helped a bit but did not solved the issue.

a step by step idiot proof guide for 2160p at any refresh rate without the red grainy flickering would be great.
 

gwimmel

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Hi, i just got this tv in the mail today, i'm using houkouonchi's .inf file for it.

My only question is if it's at all possible to get it to do integer 1x1 -> 2x2 scaling in 1080p120hz, or failing that atleast get it to use the full screen area. (got some black bars on the top and bottom.. :/ )

now, other than this scaling troubles, 120hz works beautifully as far as input lag goes, super hexagon was perfectly playable on hyper hexagonest, it felt very very responsive. :)

edit: i seem to have improved it significantly by opening up cru and setting resolution to 1920x1081, no idea why that helped, but i ain't complaining, trackmania looks amazing now.
 
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While the chinese true 120hz does not arrive i pulled the trigger on a 39" seiki. amazon and dhl delivered in in brazil in less than 10 days!
i knew it would a pita to setup, but it is much worse than i expected.
i have a 7950 with HDMI and passive displayport adapter, both with the hdmi cable that comes with the tv:

using the DP adapter i can run 1080p 30hz and 1080 60hz, without artifacts.
using the hdmi port on the vga i can ocasionally get 2160p 30hz and 2160p 24hz, but the image is red with flickering and grainy as hell. the worst thing is i still havent figured it out how to reliably turn off tv and pc and make the desktop start at 2160p, with or without red grainy flickering image.

i ordered an active mini displayport 1.2 to hdmi 1.4a adapter but meanwhile i need help:

already patched AMD drivers and removed the pixel click limit
toasty CRU did not help a lot, plus windows force detects the tv time and again
custom .inf helped a bit but did not solved the issue.

a step by step idiot proof guide for 2160p at any refresh rate without the red grainy flickering would be great.

I could not get the passive adapters working well at all. I think you will have much better luck when you get your active adapter.
 
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Hi, i just got this tv in the mail today, i'm using houkouonchi's .inf file for it.

My only question is if it's at all possible to get it to do integer 1x1 -> 2x2 scaling in 1080p120hz, or failing that atleast get it to use the full screen area. (got some black bars on the top and bottom.. :/ )

now, other than this scaling troubles, 120hz works beautifully as far as input lag goes, super hexagon was perfectly playable on hyper hexagonest, it felt very very responsive. :)

edit: i seem to have improved it significantly by opening up cru and setting resolution to 1920x1081, no idea why that helped, but i ain't complaining, trackmania looks amazing now.

Us computer people would have preferred the pixel doubling approach but I totally understand why that doesn't make sense for a TV so I think its a pipe-dream of them ever doing it.

The bars around the screen are weird but usually hitting the aspect button a few times fixes that issue. I only remember seeing that problem at 720p though as I thought at 1080p@120hz that I it was full screen on all zoom modes.
 

cptcorn

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Dec 11, 2013
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It just worked on my macbook pro retina when running windows on the 50 inch and I was able to get it working on the 39 inch as well in linux.

I'm unfortunately using a windows box. No audio.

Scratch that... I'm idiot and didn't have display port enabled in the volume mixer... durrrr
 
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geok1ng

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I could not get the passive adapters working well at all. I think you will have much better luck when you get your active adapter.

Problem more or less solved. using 6950 it autodetects 2160p30hz without problems, crystal clear image. Maybe the hdmi port on my 7950 is damaged. :(

I have played a bit of The Witcher and Lord of The Rings Online at 2160p and 30hz does not bother at all, On the other hand i have to sit further away and my neck is sore:p from moving the head from side to side of the screen: 39" is a bit too large to use as PC monitor at my age:cool:
 

notarat

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I bought the 39" Seiki to use at work in a pilot project. I'd always planned to replace the 50" Seiki on my main rig with the 39" and move the 50" into the living room, so I knocked off work early today and swapped out the TVs.

Going from the 50" Seiki to the 39" Seiki is WEIRD AS HELL!

The icons are so much smaller on the 39" and I'm not craning my neck to see the top of the screen! I'm not sure what to think...part of me likes being able to see everything on the screen without moving my eyes, but part of me misses the larger picture...

I guess it'll take a while to get used to it.
 

notarat

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Well I am getting used to the 39" in place of the 50"...

My neck is thanking me, lol, but the computer table just looks odd without that huge black rectangle..

I used to have a guide for setting the color calibration for the 50 and I thought I'd try using it to calibrate the 39" but I can't find it.

Anyone using the 39 care to share your calibration values to get me in the ballpark?

Overall I'm pretty happy with the colors but it does need a bit of tweaking...
 

geok1ng

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Well I am getting used to the 39" in place of the 50"...
Anyone using the 39 care to share your calibration values to get me in the ballpark?
Overall I'm pretty happy with the colors but it does need a bit of tweaking...

I used these bunch of tests for Seiki 39" calibration.

Color Mode: Normal
Gain Red 105
Gain Green 105
Gain Blue 135
Offset Red 495 >>> to be tweaked
Offset Green 505 >>> to be tweaked
Offset Blue 504 >>> to be tweaked
Backlight 100
Contrast 44
Brightness 68
Sharpness 0
Color 40
DCC Off

Inside AMD CCC:
Desktop management
Desktop color
Green 0.75
Red 0,65
Blue 0,60

I have perfect white level tests, half-bad black levels test, decent gamma at 48% luminance. Unfortunately gamma is around 2.5 at 25% and 10% luminance bars, which is to be expected in VA panels, along with the crushed blacks. The service menu + CCC made me happy een without a colorimeter. Maybe reversing steps and resetting the CCC adjustments and doing the color offsets tweaks in service menu first is more rational way of doing it.
 
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I'm unfortunately using a windows box. No audio.

Scratch that... I'm idiot and didn't have display port enabled in the volume mixer... durrrr

Guesing you also misssed the fact where I said my macbook which was running windows =P
 

geok1ng

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Us computer people would have preferred the pixel doubling approach but I totally understand why that doesn't make sense for a TV so I think its a pipe-dream of them ever doing it.

Actually bypass the scaler is a very common function on modern TVs. Gone are the days were only a handful of models offered "game mode". The issue is that this is a 4k TV sold before 4k content is available for TVs, so having a good scaler is essential. Naturally at 39" ( and to a lesser degree 50") 4k for TV is useless and the display is sold to be used as a Computer monitor for which an ALWAYS ON scaler is a hindrance.

I keep my hopes that game mode and 120hz will be possible someday. Or failing that. replacing the board with a gsynced one. :cool:
 
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notarat

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I used these bunch of tests for Seiki 39" calibration.

Color Mode: Normal
Gain Red 105
Gain Green 105
Gain Blue 135
Offset Red 495 >>> to be tweaked
Offset Green 505 >>> to be tweaked
Offset Blue 504 >>> to be tweaked
Backlight 100
Contrast 44
Brightness 68
Sharpness 0
Color 40
DCC Off

Inside AMD CCC:
Desktop management
Desktop color
Green 0.75
Red 0,65
Blue 0,60

I have perfect white level tests, half-bad black levels test, decent gamma at 48% luminance. Unfortunately gamma is around 2.5 at 25% and 10% luminance bars, which is to be expected in VA panels, along with the crushed blacks. The service menu + CCC made me happy een without a colorimeter. Maybe reversing steps and resetting the CCC adjustments and doing the color offsets tweaks in service menu first is more rational way of doing it.

Thanks mang! I'll try those settings out this evening when I get home from work. :)
 

gwimmel

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Or failing that. replacing the board with a gsynced one. :cool:

That's my hope and dream for this TV, i tried out a few games in 4k, while they were unplayable due to framerate and 30hz, they looked stunning. and if the 120hz stuff i've tried out is anything to go by, games even look pretty smooth when they aren't running at a constant 120fps, can only imagine how much nicer that'd be with gsync.
 

geok1ng

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Confirming that the 39inchalso uses BGR pixels:
pyov.jpg


My review in portuguese is ready with some calibration pictures
 

rothnic

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Nov 24, 2007
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I just got the 39" model and had no issues getting it working at full resolution in Windows 8 at 30hz using the on board hd4600 for my 4770k.

However, I am having issues getting it working in the same capacity under osx 10.9. I can get it at full resolution but it always is 24hz or so and when the display comes up it shows DVI1 instead of HDMI1. When it comes up like this it looks like absolute crap. There are artifacts, sometimes banding across the screen, and the text is very difficult to read. Has anyone experienced similar issues?
 

rpmucha23

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10.9 on my iMac & MBPr was plug and play. Used the Accel active mdp adapter, and 30hz came right up. only issue i had was vsync lag on 10.8.

what are you using for an HDMI adapter?
 

rothnic

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10.9 on my iMac & MBPr was plug and play. Used the Accel active mdp adapter, and 30hz came right up. only issue i had was vsync lag on 10.8.

what are you using for an HDMI adapter?

This is a hackintosh. I have 2xhd6850 cards but they don't support the 4k resolution via HDMI, so I was using the 4770k hd4600 onboard graphics via an HDMI port built into the Asus Z87 Pro motherboard.

It works fine in windows with the hd4600 graphics, although I think it might be a bit more jerky than a more capable card would be.

I saw the Accell adapter mentioned, and am curious if that would work for my 6850's. Otherwise this might require me to get a new card, and AMD cards are inflated in price big time right now. So not sure if I want to keep this thing at this point or not.
 
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Dear all, as a LVDS interface design engineer, I would like to share some of my thoughts :
1) I confirm the seiki display has 2 limitations : a) input connector/graphic chip (main board) b) TCON (part of chimei panel)

2) LVDS vs V-by-one-HS : LVDS is used for pixel clock of 75Mhz (usually up to 90Mhz), datarate is 7 times this so we are looking at 525 Mb/s per pair.
Each link 5data + 1clock allows 30bit color pixel data sent at pixel clock, having 4 links allows up to 300Mhz pixel clock. ie 4k @30Hz.
LVDS is raw data sent with separated clock meaning that like any digital bus the skew relationship between data and clock is very important to get correct data sampling.
LVDS is not a dead-end actually, I am personally designing LVDS interafce @ 170Mhz ie 1.2Gb/s per lane which is used in practice @150Mhz ie suitable for 4k @60Hz (600Mhz pixel clock). At this speed we are looking at maintaining data/clock skew at less than +/-150ps which is difficult when accounting mismatch of connectors, cable, pcb traces and IC package internal routing and bounding wires with different length.
To give an idea, 1mm extra trace length is 100ps delay.
Luckily I include automatic deskew capability into my circuit to ease such problem.
However in the industry, Thine electronics went developing V-by-on-HS which is a serial link (clock is encoded within data to avoid data/clock skew issue) and goes a faster than double speed LVDS.
That is why on display having TCON supporting 4K @60hz you will see V-by-one-HS interface and not LVDS, even though LVDS could be used if they were upgrading their internal circuits.

regarding LVDS overclocking, most LVDS interface are either design up to 90Mhz, or 120Mhz, or 160Mhz over different process corner, temperature and voltage supply. You might get lucky if the TCON use and high speed one indeed, cause you would just need to make a main board with a graphic chip that has Fast LVDS interface transmitter (can support 150Mhz pixel clock).
However TCON internal logic is maybe not designed for such bandwidth, and you will still need to change both GPU board and TCON board.

3) please note that interface between GPU and TCON can either be LVDS , V-by-one_HS or embedded displayport (alternative for future bigger display to V-by-oneHS)

4) One can design FPGA board that takes DP or dual HDMI in and drive directly the panel , replacing both GPU & TCON, and using scaling from PC GPU.
TCON takes 10-bit color data and output either using RSDS interface or miniLVDS (see corresponding spec) using 8-bit only but use the 60 or 120Hz refresh rate to modulate in time the color LSB based on extra bits (9&10). To keep same color quality , FPGA should also implement this.
I could not find any info on this particular TCON about its output interface.
I also design RSDS interface circuits so if you have any question about it I will do my best to answer you.
RSDS or miniLVDS use LVDS I/Os but speed is much lower, usually 2x pixel clock, ie up to 300Mb/s.
 

rpmucha23

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This is a hackintosh. I have 2xhd6850 cards but they don't support the 4k resolution via HDMI, so I was using the 4770k hd4600 onboard graphics via an HDMI port built into the Asus Z87 Pro motherboard.

It works fine in windows with the hd4600 graphics, although I think it might be a bit more jerky than a more capable card would be.

I saw the Accell adapter mentioned, and am curious if that would work for my 6850's. Otherwise this might require me to get a new card, and AMD cards are inflated in price big time right now. So not sure if I want to keep this thing at this point or not.

well my iMac is equipped with a AMD Radeon HD 6970M 1024 MB, which is pretty much a 6850.
 

rothnic

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Yes, using the Accel adapter.

Thanks. Yeah I went ahead and ordered one yesterday and got it today. Plugged it into my 6850 in Windows and it was recognized very quickly. Rebooted into OSX and again it was instantly recognized at 4k with the 30hz refresh rate. I spent hours playing with settings in OSX with the hd4600, so I wish I had purchased this earlier.

Comparing the hd4600 to the 6850 seems to make a difference. It was hard to understand when jerkiness was because of the refresh rate or the hd4600. After getting the 6850 working via the adapter it does seem to be a bit smoother. Probably only noticeable because I used it with the hd4600 for a few days, but the slight difference does seem to make it usable enough to keep, where I was leaning towards returning it before.

Also, in OSX 10.9 mouse movement seems to be slightly smoother, while window movement is more noticeably so. After installing smooth mouse, this really does start to seem like a very usable setup. Smooth mouse seems to fix the issue where the mouse feels laggy. You still have the windowing effect due to the mouse moving too quickly for the 30hz refresh rate, but at least it feels like you are in control of the mouse location. Now I just need Chrome to fix their issues in OSX to be perfectly happy.

tl;dr OSX 10.9 + smoothmouse + decent video card makes a significant difference
 

rpmucha23

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i did notice a difference in 10.9 also. it brought it on par with win7+disabling aero glass.
 

geok1ng

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I disabled aero and did not noted great benefits. It helped a little but not enough for fast mouse usage in windows, like bullet chess.

Back to the 30hz dilemma, i ask teh experts: instead of looking for a non-existent 4k60hz tcon, why not ask for a firmware that does black frame interpolation between 30hz frames? It would bypass hdmi 1.4a limitations without massive hardware modifications.
 

rothnic

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If anyone is interested in turning off vsync in OSX, I found this did the job: http://www.tonymacx86.com/customization/92201-beamsyncdropper-tool-disable-beamsync-permanently.html

You definitely start seeing tearing in the windows and if you move them fast they almost look wobbly like with compiz in linux. It seems like there might be some change with the mouse, but not much better than using smoothmouse. It seems that smoothmouse achieves a similar result without affecting the window behavior.

If anyone is interested in wall mounts, I found this one to work perfectly and it puts the monitor about as close to the wall as you possibly could get it without glueing it directly to the wall. I'll post some pictures here soon if anyone wants to see them.
 

geok1ng

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I have finished my tweaking efforts with the seiki 39":

Using CRU i managed to bring pixel clock at 4k down to 264.62MHz. It was useless because as stated here the TV won't go a micron above 31Hz refresh rate.

W7 does not recognizes/accepts pixels clocks above 300MHz, so there could be a software problem to be faced with faster displays. This is true even after applying the ATI driver patch.

Strangely 120hz@ 1920x1080 is recognized by the TV as 1080p@120hz, with weirdo effects and some lag, but 121Hz is correctly displayed as 1920x1080@121hz, and it is very fast, even if it drops a lot of frames.

I am not sure that 720p does not drop frames. My test suggests that the opposite is true. Even 1080p@96Hz/72Hz may be dropping frames if my understanding of the refreshratemultitool is correct.

So i propose that we redefine our goals with the Seiki engineers:

There is no reason for a TV that can do 4k/30Hz@297MHz pixel clock to not reach a notch above 31Hz even with heavily reduced blanking timings.

Even if for some strange behavior the TV can not do 120Hz@1080p, it should at least do 72/96/100Hz. Next month i will have my camera back and will repeat refreshratemultitool tests and locate exactly at which point the TV starts dropping frames, i suspect the soft limit is 60Hz at all resolutions.
 
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There is no reason for a TV that can do 4k/30Hz@297MHz pixel clock to not reach a notch above 31Hz even with heavily reduced blanking timings.

Even if for some strange behavior the TV can not do 120Hz@1080p, it should at least do 72/96/100Hz. Next month i will have my camera back and will repeat refreshratemultitool tests and locate exactly at which point the TV starts dropping frames, i suspect the soft limit is 60Hz at all resolutions.


I assume the 39 inch if its dropping frames but anyway the issue on the 50 inch is > 31 Hz it activates the scaler or its doing a specific programmed mode at 4k that is causing the issue its not that the panel or the electronics can't handle it. i had no problems pushing 340 Mhz over HDMI to my 50 inch seiki which worked fine as long as the veritcal refresh was not over 31 Hz.

So obviously the electronics can handle it but I think we are limited by the firmware here.
 

rothnic

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Anyone running a hackintosh setup....Do you have issues with lag when using mission control? It seems to do ok with a very minimum number of windows, but with a fair number (which is the point of this monitor) my 6850 seems to choke. Maybe getting 5-10 frames in for the entire animation. It seems like a 6850 should be able to handle that pretty easily, so wasn't sure if anyone else has experienced issues.
 

Medawky

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Hey everyone :)

I have just joined these forums cos im a recent owner of a Seiki 39" 4k beastling. I have been reading this thread since almost day one, looking out for info on firmware fix for 120hz...but I have given up on that. Anyways...thats another story.

The reason for my post is to get advice on a very annoying problem under windows. A problem that has come with the release of 4k :)

Ok let me explain the situation:

First of all some background info; I have the 39" seiki connected to my PC (running Win7-64) via a GTX 680 gpu's HDMI port. Everything works beautifully, 4k 30hz is perfect for desktop and 1080p60 is good enough for gaming. All works perfectly.

Now lets move onto my issue, which is regarding video playback. Naturally, since the desktop is at 30hz, a 60fps recorded video is going to playback at 30fps, and it does. This is expected and is perfectly fine. I can always drop the desktop res to 1080p @60hz and playback the same video smoothly with 60fps. So all good. Now, i figured...instead of dropping the resolution down everytime i want to play a 60fps content, why dont I just get a second screen that is 60hz, or even 120hz, and extend my desktop, and play the videos full screen on the 2nd monitor. So basically, have my main monitor 3840x2160 @30hz and secondary monitor 1920x1080 @60hz. So i went ahead and did this. All good so far, mouse moves 30fps on main screen, soon as u move it over to other screen starts moving at a much smoother 60fps due to 60hz. (Btw sorry for the LONG post, i really want to set to the mood :p). Ok so everything is sweet, as expected, got the primary monitor and second monitor extended @60hz. Ok so i figure, im ready to double click that 60fps video and drag it over to second screen and full screen it.

When i moved the video over to second screen (60hz), to my astonishment, it was limited at 30fps :( .....im like ok....let me try playing it with another player, maybe windows media player is being silly. So I try about 5 other players, including VLC, nero, classic...u name it...i threw at it. No go! All players were capped to 30fps! At this point, i was moving to the 'wtf' territory. When i drag the video player over to second screen, full screen or not, it wont go over 30fps! So as a test, i reduced the primary monitor to 1080p as well, 60hz, same as second screen, then tried it, and boom, plays 60fps smoothly, not capped to 30fps. Straight away im thinking this is a Win7 operating system limitation or a bug or whatever u wanna name it. So i grab a blank HDD and dump Win8 onto it just to see if Win8-64 behaves the same way....and sadly it does!

So long story short, IF a 30hz monitor is plugged into the system, then all other monitors in a multi-monitor setup has their video playback fps capped to 30fps, that of the refreshrate of the lowest monitor connected :( ....The same applies if u select 24hz or 25hz etc, the video playback fps is capped to that of the refresh rate of the other monitor.

I really need help with this guys. I have also tried this on another system, that had 2 1080p monitors. I set one monitor to 24hz, the other to 60hz, and the video playback was limited to 24fps on the 60hz screen :(

Any ideas?

Cheers, also sorry for long post and THX big to anyone who actually thoroughly read it through :)

Med
 
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Definitely appears that you are hitting a windows bug. I use linux and have no such problem.

I suspect its Aero. I would try disabling aero to see if there is any difference.

If that is not it I would try something that is not using direct3d as a video output mode (like an older player that is direct draw and not direct3d).

I would give mplayer2 or something a shot and play with -vo direct3d or -vo directx or -vo gl2 (or gl or gl3) and see how the behavior changes between them.
 

Mr.Pixel

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Oct 30, 2010
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It may also depend on which display is setup as the primary. Have you tried setting the secondary 60Hz monitor as the main one, and the 39" to be secondary? Win8 may let you configure either to have a taskbar, so I'm guessing that shouldn't be a problem.
 

elguapo84

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I wonder if someone could provide some quick summary answers to the following questions. I'm still not 100% clear on them, despite having read through this thread, and I think they are questions that a lot of non-technical readers / potential buyers are wondering.

1) What are the substantive differences between the 50" and 55" models in terms of quality and underlying hardware?

2) From any testing done here, does it appear possible for any of the 39", 50" or 55" models to hit 60hz @ 4K through firmware tweaks? If not, does it appear possible to hit 60hz through the combination of firmware + an external hardware adapter? Or would it require swapping out internal circuit boards?

Thanks in advance!
 
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I wonder if someone could provide some quick summary answers to the following questions. I'm still not 100% clear on them, despite having read through this thread, and I think they are questions that a lot of non-technical readers / potential buyers are wondering.

1) What are the substantive differences between the 50" and 55" models in terms of quality and underlying hardware?

2) From any testing done here, does it appear possible for any of the 39", 50" or 55" models to hit 60hz @ 4K through firmware tweaks? If not, does it appear possible to hit 60hz through the combination of firmware + an external hardware adapter? Or would it require swapping out internal circuit boards?

Thanks in advance!

1) 50 is a ChiMei Innolex panel vs AUO and appears to be superior quality from most reviews. The 55 inch can do 120Hz motion interpolation at 4k (for smoother motion). The 50 inch; however can do 120Hz @ 1080p which the 55 can't.

The 55 inch is thicker/heavier and IMHO looked worse so I personally would go with the 50 inch.

2). None of these are probably going to ever do 60Hz @ 4k. The panel themselves are capable of higher than 30Hz though but the firmware and/or controller is holding them back. The hardware of their TMDS -> LVDS controller does appear to be able to handle more bandwidth but its unclear if its some sort of other hardware issue keeping the refresh rate back or just firmware. Since they surely will not do 60Hz I would not expect seiki to ever release a newer firmware that did something that was > 30 but <60.
 

elguapo84

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1) 50 is a ChiMei Innolex panel vs AUO and appears to be superior quality from most reviews. The 55 inch can do 120Hz motion interpolation at 4k (for smoother motion). The 50 inch; however can do 120Hz @ 1080p which the 55 can't.

The 55 inch is thicker/heavier and IMHO looked worse so I personally would go with the 50 inch.

2). None of these are probably going to ever do 60Hz @ 4k. The panel themselves are capable of higher than 30Hz though but the firmware and/or controller is holding them back. The hardware of their TMDS -> LVDS controller does appear to be able to handle more bandwidth but its unclear if its some sort of other hardware issue keeping the refresh rate back or just firmware. Since they surely will not do 60Hz I would not expect seiki to ever release a newer firmware that did something that was > 30 but <60.

Very helpful reply.

I had purchased the 55" online without having seen the thickness in person, and was surprised by how thick it was. Not having seen the 50", how much thinner is it?

Bummed to hear that neither of these are going to make it to 60hz @ 4k. Sounds like it might be worth waiting for the next generation models.

I've watched a couple 4K videos on the 55 and was pleasantly surprised by its performance with MEMC enabled. But 1080p not working at 120hz is a deal killer. I wasn't aware of this limitation. Is that something that can be addressed via firmware?
 
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Very helpful reply.

I had purchased the 55" online without having seen the thickness in person, and was surprised by how thick it was. Not having seen the 50", how much thinner is it?

Bummed to hear that neither of these are going to make it to 60hz @ 4k. Sounds like it might be worth waiting for the next generation models.

I've watched a couple 4K videos on the 55 and was pleasantly surprised by its performance with MEMC enabled. But 1080p not working at 120hz is a deal killer. I wasn't aware of this limitation. Is that something that can be addressed via firmware?

The 120Hz @ 1080p would be a limitation of the TCON and thus I would say unlikely that one will ever do it especially since it properly does the 120Hz effect @ 4k so its already technically doing 120hz.

According to the specs on seiki's website the 50 inch is 2.09 inches thick and the 55 is 3.81 so I would say that is a pretty significant difference. It definitely seemed significant to me especially because the 55 seemed pretty thick even around the edges where as the 50 inch is around 1 inch thick until you get farther into it where it has the inputs and stuff.

I didn't use the 55 inch all that long myself (just tested it in the store) but I assume input lag is probably much worse on the 55 inch as well as at 1920x1080@120Hz on the 50 inch its almost non-existent which actually makes it excellent for gaming on. I would assume even at 4k its better since the MEMC probably adds quite a bit of latency.
 

elguapo84

n00b
Joined
Jan 2, 2014
Messages
3
The 120Hz @ 1080p would be a limitation of the TCON and thus I would say unlikely that one will ever do it especially since it properly does the 120Hz effect @ 4k so its already technically doing 120hz.

According to the specs on seiki's website the 50 inch is 2.09 inches thick and the 55 is 3.81 so I would say that is a pretty significant difference. It definitely seemed significant to me especially because the 55 seemed pretty thick even around the edges where as the 50 inch is around 1 inch thick until you get farther into it where it has the inputs and stuff.

I didn't use the 55 inch all that long myself (just tested it in the store) but I assume input lag is probably much worse on the 55 inch as well as at 1920x1080@120Hz on the 50 inch its almost non-existent which actually makes it excellent for gaming on. I would assume even at 4k its better since the MEMC probably adds quite a bit of latency.

Got it! Thanks!

Well lucky for me, my 30th day of a 30 day return policy is tomorrow. Back to the store the 55" goes. I'll probably just wait until they start launching next gen before I buy another set, supposedly Q2?
 

Medawky

n00b
Joined
Jan 1, 2014
Messages
30
Hey again guys, thanks for the input regarding the 30fps limit video playback. I have tried the following as suggested:

1) Aero - tried disabling, no go. Its still frame limited, but now with the added tearing due to no vsync.

2) Swapped primary and secondary monitors', although this is not a solution for me, it did work. I simulated this by setting my primary monitor to 60hz, and the secondary to 30hz, the video did play smoothly on the primary. But my goal is to play it 60hz smooth on the secondary. But this did prove that it is possible to play at full 60fps while theres still a 30hz in the multi monitor system.

3) I havent tried any suggested video players using different APIs yet (like d3d or dx or gl etc), again even if this worked, I dont think it would be a permanent solution.

It definitely seems like a 'window' limitation under windows7/8. Just the way each window is treated...some parameters are obviously based on the variables assigned to the primary monitor. But im certain, there must be a way around it. Where there is will there is a way! : P ...

If anyone has 2 monitors, you can easily replicate this bug / limitation. Just set your primary monitor to 24-30hz, then secondary (extended monitor) to 60hz. Play a 60fps video (dont bother with youtube etc, u need a decent raw video file, either recorded with fraps etc or from a 60fps camera so u know its true 60fps that plays silky smooth) and just drag it over to secondary screen, even though its 60hz, u will see the fps is limited by the refresh rate of the primary screen.

Thx again, Med
 

elleana

2[H]4U
Joined
Apr 15, 2006
Messages
2,590
So I just spent an hour or two reading through the entire thread, and am considering the 39" as a desktop monitor. I understand the limitations of 30Hz, but I don't plan to game on it (and definitely no FPS anyhow) so I think I would be perfectly fine with that - will just use it as a general use monitor plus as a TV, which I understand is mostly 30Hz anyway.

Couple of questions -
(1) How far back does one need to sit from the 39" such that your eyes dont bleed? My desk is about 2.5" deep, am wondering if that's enough.
(2) Anyone try hooking up an Oppo player (or anything else that upconverts content to 4K)? How did you like it?
 
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