Acer X27 4k 144hz HDR Gsync

KG-Prime90 said:
As i recall he said you needed the newest Win 10 Update to use HDR, plus 1080ti with firmware update, but i don't think he specifically said that you needed it for 144Hz.
Click to expand...

I am running a Titan X Pascal...one of the older ones, so most likely gonna need to be flashed with the firmware update....uhhh whenever that is ready I am willing haha

I am going to have to do a dual boot system for W10 since a lot of my work productivity software only works with 8.1.

This display is WONDERFUL, even in SDR 4k120 444 it is fantastic for my work productivity and I no longer need two monitors on my desk!
 
Here are some MOAR OSD shots for those interested....
osd1.jpg

SDR_X27.jpg

osd2.jpg

osd3.jpg

osd4.jpg

osd5.jpg
host image online
osd6.jpg
 
I don't see ULMB as an option anywhere. Not in the OSD and not in Nvidia control panel.

I just tried 98hz and it gives me the 10bpc option in Nvida control panel and it is BURRRIIIIFUUULLLLL

ULMB would be nice, perhaps a firmware update option later down the road? No matter, as is this display is incredible and I have not even tried HDR yet lol

Vega said:
Windows 8.1 you living in the stone age? :)
Click to expand...

Yes...yes I am!
 
SDR Variable Backlight. So Fald works on Desktop? What's that like? Interested in of course glow and blooming on Desktop mode, pretty much in low light, like at night or dark room.

But ehh i also don't want to ask you to look for things wrong when you just got it and are trying to enjoy it :p
 
KG-Prime90 said:
SDR Variable Backlight. So Fald works on Desktop? What's that like? Interested in of course glow and blooming on Desktop mode, pretty much in low light, like at night or dark room.

But ehh i also don't want to ask you to look for things wrong when you just got it and are trying to enjoy it :p
Click to expand...

SDR VB works pretty well in desktop. I need to install W10 on this machine to test out HDR. What I can tell you is the display is incredible.

This came in the box:

J_B06052018.jpg
 
Last edited:
l88bastard said:
SDR VB works pretty well in desktop. I need to install W10 on this machine to test out HDR. What I can tell you is the display is incredible.
Click to expand...
More pictures please for SDR and HDR games , Do u think FALD 384 zones + HDR 1000 nits enough to give us perfect black levels on 27'' size ?
 
I spoke with Microcenter today and they said the displays were recalled, has anyone heard anything about this? I'm thinking I was just talking to someone who didn't want to answer questions though and told me to check back in a few weeks. I will check back Friday most likely when they originally said they will have stock. I remember when I got my X34 it was recalled, but I ended up keeping it anyways.
 
Lmah2x said:
I spoke with Microcenter today and they said the displays were recalled, has anyone heard anything about this? I'm thinking I was just talking to someone who didn't want to answer questions though and told me to check back in a few weeks. I will check back Friday most likely when they originally said they will have stock. I remember when I got my X34 it was recalled, but I ended up keeping it anyways.
Click to expand...

Maybe it was recalled for the upside down G-Sync logo? lol!
 
speak_easy said:
Hey guys, here is the link to the firmware update to enable G-Sync HDR. Applied to my GTX 1080 last night with no issues. My local Microcenter got 3 of these ins stock, and aside from the price - this is extremely tempting. I hop you can give us some impressions of how this works.

http://www.nvidia.com/object/nv-uefi-update-x64.html
Click to expand...

The monitor is AMAZING as long as your G-Sync HDR sticker is not upside down. If the sticker is upside down I recommend RMA'ing IMMEDIATELY!!!
 
Pics don't do the display justice! But help show haloing is not an issue in game
I think there is a lot of hate for this FALD display over:

1) The Price
2) The FALD

I was one of those who didn't care about the FALD array.....until I used it and saw the greatness of HDR on it!

image.jpg

image.jpg

image.jpg
 
Well I found a pretty big flaw with the firmware in the monitor basically making 144 Hz unusable. It may have more repercussions as I do more testing.
The display does not reset the dynamic range between RGB (full/0-255) and YCbCr (limited/16-235). I assume the setting "Auto black level" is supposed to accomplish that in the menu, but it does nothing. That means in 144 Hz mode you are forced to use YCbCr 4:2:2 chroma (limited), so you lose black range (clipping). The "SDR Colors sRGB" selection also doesn't appear to affect the dynamic range. You apparently want to keep that setting "off" in the menu whilst using RGB as with it on it looks washed out and terrible.
The dynamic range bug effects all YCbCr modes in SDR but does not effect HDR. So really you have to use 4K 120 Hz RGB 4:4:4 8-Bit (Full) for all your SDR content.
The monitor chassis very unfortunately also has a clearly audible fan whilst sitting at a normal distance from the display.
 
l88bastard said:
Pics don't do the display justice! But help show haloing is not an issue in game
I think there is a lot of hate for this FALD display over:

1) The Price
2) The FALD
Click to expand...

It looks great, however for me the dealbreaker is the size. I could live with the 27" size for gaming but I want something that can double as a productivity display too. If it was at least 32" I would've been much more tempted.
 
x3sphere said:
It looks great, however for me the dealbreaker is the size. I could live with the 27" size for gaming but I want something that can double as a productivity display too. If it was at least 32" I would've been much more tempted.
Click to expand...

I was worried about that too. For my work productivity I need at least two displays or an ultra-wide. But this thing is so razor sharp that I am able to fit all the information I need into it! Thing is like a sewing machine for my work productivity 120hz + 4k just hummmmmms!
 
Two back to back PUBG wins today with the X27. This monitor is great for desktop and bright games/first person shooters but is terrible for dark games. I'll post some more thoughts when I get some time.
 
Vega said:
Two back to back PUBG wins today with the X27. This monitor is great for desktop and bright games/first person shooters but is terrible for dark games. I'll post some more thoughts when I get some time.
Click to expand...

What frames you getting in PUBG? I have been sticking with my 1080p 144hz display since I can drive it with the 1080TI in PUBG.
 
i rly want to buy this screen but i like high hz. so 4:4:4 96hz isnt for me. is there a big difference to 4:2:2 144hz hdr? can anyone give some comparison pics? (want to play bf1 with gsync 144hz hdr and capped to 140 fps, gsync+vsync on)

second question: can you use the monitor with non hdr but fald backlight on for gaming? like the ips with super blacks thing :) and is there a difference in input lag with fald on?
 
sharknice said:
Does this use pwm to control the brightness?
Click to expand...
No.
Vega said:
Well I found a pretty big flaw with the firmware in the monitor basically making 144 Hz unusable. It may have more repercussions as I do more testing.
The display does not reset the dynamic range between RGB (full/0-255) and YCbCr (limited/16-235). I assume the setting "Auto black level" is supposed to accomplish that in the menu, but it does nothing. That means in 144 Hz mode you are forced to use YCbCr 4:2:2 chroma (limited), so you lose black range (clipping). The "SDR Colors sRGB" selection also doesn't appear to affect the dynamic range. You apparently want to keep that setting "off" in the menu whilst using RGB as with it on it looks washed out and terrible.
The dynamic range bug effects all YCbCr modes in SDR but does not effect HDR. So really you have to use 4K 120 Hz RGB 4:4:4 8-Bit (Full) for all your SDR content.
The monitor chassis very unfortunately also has a clearly audible fan whilst sitting at a normal distance from the display.
Click to expand...
The ASUS rep was saying they were working of the firmware on their version up to the last minute, so I hope the PG27UQ doesn't have these issues. We knew these had active cooling since we first saw them, but I have not seen anyone comment on the fan noise yet. I hope it's not too bad, but I usually game with headphones anyway.
bubulus said:
i rly want to buy this screen but i like high hz. so 4:4:4 96hz isnt for me. is there a big difference to 4:2:2 144hz hdr? can anyone give some comparison pics? (want to play bf1 with gsync 144hz hdr and capped to 140 fps, gsync+vsync on)

second question: can you use the monitor with non hdr but fald backlight on for gaming? like the ips with super blacks thing :) and is there a difference in input lag with fald on?
Click to expand...
You won't notice a difference between 4:4:4 and 4:2:2 in motion. You will in static images if you look closely enough, especially with text, so taking pictures to compare is kind of pointless. Depending on what video card you have you're going to have to turn down the detail a lot to hit 140 FPS at 4K. I heard there is supposed to be a 2560x1440 version of these monitors coming out later this year, if you absolutely need to achieve high frame rates.

If the X27 is like the PG27UQ, then yes, the FALD will still operate in SDR. l88bastard or Vega will have to confirm.
 
  • Like
Reactions: Q-BZ
like this
Armenius said:
No.

The ASUS rep was saying they were working of the firmware on their version up to the last minute, so I hope the PG27UQ doesn't have these issues. We knew these had active cooling since we first saw them, but I have not seen anyone comment on the fan noise yet. I hope it's not too bad, but I usually game with headphones anyway.

You won't notice a difference between 4:4:4 and 4:2:2 in motion. You will in static images if you look closely enough, especially with text, so taking pictures to compare is kind of pointless. Depending on what video card you have you're going to have to turn down the detail a lot to hit 140 FPS at 4K. I heard there is supposed to be a 2560x1440 version of these monitors coming out later this year, if you absolutely need to achieve high frame rates.

If the X27 is like the PG27UQ, then yes, the FALD will still operate in SDR. l88bastard or Vega will have to confirm.
Click to expand...

have a titan pascal. i am playing bf anyway with low settings except mesh quality. because i hate that postprocessing shit. picture looks way sharper without that. so 140 fps are possible. now @ 2560x1440 and graphics card is mostly 60%. i also tried this with ingame resolution scale. 115-140fps thats fine for me.
i dont buy that monitor for hdr, just for the fald backlight and 144hz@4k. i rly would love a panel with that backlight but without hdr and an option for 1080p@240hz for 27". a 32" 4k version would also be nice :) i could imagine that hdr is nice but its not that key element for me. i love sharpness (which my 32gk850g is a bit lacking) and high hz.

my absolute fav monitor would be a 2560x1440 240hz ips. i dont think i will ever get such a thing. so therefore i am waiting for more pics and impressions on that 4k thing. loosing 100hz and getting fald backlight would be ok for me :-D
 
I got mine reserved for pickup tomorrow at Microcenter. They said they have 5 arriving tomorrow (Westmont, IL location).
 
l88bastard said:
SDR Pics taken from my Galaxy S7 mobile phone:

View attachment 79353picture share
View attachment 79354
View attachment 79355upload photos
View attachment 79356
View attachment 79357
View attachment 79358
View attachment 79359
View attachment 79360
View attachment 79361
Click to expand...

Those look good, at least when viewing them on my iPhone 7 Plus. Those are 4K backgrounds I hope! :)

You should take a walk over to https://interfacelift.com and download some fine 4K wallpapers, among the last 100 pages or so. One of the best sites IMO for excellent desktop wallpapers.

Also, how’s the blooming on dark backgrounds? Seeing as how it was one of the major concerns with these monitors.
 
Vega said:
Ya that is an instant RMA. It is true that fans can last a long time these days, but I am curious to know what happens to the monitor when it fails.
Click to expand...

That is nothing compared to my upside down Gsync-HDR logo!

Just kidding, that fucking sucks!!!
 
Last edited:
If anyone is by me in the D.C. area there are two in stock at the Fairfax Microcenter.
 
You must log in or register to reply here.
Back
Top