L246WP display problem with HDMI video cards

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bryanb

n00b
Joined
Sep 13, 2007
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40
Hi all,

I've been having trouble getting my LG 246WP to work with any video card that supports HDMI, even without using a DVI->HDMI adapter on the video card. At 1920x1200, the right and left sides are cut off about 50%, hiding the start menu etc. I can see the full screen at 1024x768 and 1280x720. It seems like the cards think the monitor is a TV or something.

I've tried an ATi HD2600 Pro and the Asus 8600GT w/ HDMI support (EN8600GT/HTDI/256M). Both of these cards have normal DVI ports, but are able to function as HDMI also with the included adapter.

My PC is running Vista. One interesting thing I noticed is if I press OK/Auto, the monitor reports 720p regardless of the video card resolution.

Anyone experience the same issue? Is there a way to fix it?

Thanks,
Bryan
 
I believe the LG L246 can do 1:1 scaling... Have you tried that? I, myself, do not have an HDMI card in my PC but I'm curious to know what happens since I'm looking to get this LCD.

Please keep us updated and good luck!

- Wil
 
Is the monitor set for video or desktop mode?

I don't know if that would make a difference, or what the mode is, but it certainly comes to mind.
 
Cirkustanz said:
Is the monitor set for video or desktop mode?

I don't know if that would make a difference, or what the mode is, but it certainly comes to mind.
Click to expand...

I've tried both. Doesn't seem to make much difference other than scaling.
 
kuyawil said:
I believe the LG L246 can do 1:1 scaling... Have you tried that? I, myself, do not have an HDMI card in my PC but I'm curious to know what happens since I'm looking to get this LCD.

Please keep us updated and good luck!

- Wil
Click to expand...

I've tried both scaling options I have, which are "Full" and "Original". Neither one fixes it. Seems like the monitor will only accept TV resolutions like 720p and 1080p when using this type of video card.
 
First of all HDMI and HDCP are not the same thing. HDMI is a port, HDCP is a "way" to protect from copying movies. (general speaking).

The cards that you mentioned have HDCP support, but they do not have HDMI ports.

Did you perform clean installation of the graphics cards?
Have you installed the monitor's driver?

I have read about this issue before, and if I remember correctly it is a graphics card driver issue. Do you use the latest driver from Nvidia? If you definetely are and the problem remains, then clear the driver and install a much older version of forceware, for example 96 series.
 
BlueMak said:
First of all HDMI and HDCP are not the same thing. HDMI is a port, HDCP is a "way" to protect from copying movies. (general speaking).

The cards that you mentioned have HDCP support, but they do not have HDMI ports.

Did you perform clean installation of the graphics cards?
Have you installed the monitor's driver?

I have read about this issue before, and if I remember correctly it is a graphics card driver issue. Do you use the latest driver from Nvidia? If you definetely are and the problem remains, then clear the driver and install a much older version of forceware, for example 96 series.
Click to expand...

These cards actually come with HDMI adapters, and are able to pass audio when using the adapter, so they are not just standard DVI w/ HDCP. When I was using an 8600 GT with standard DVI w/ HDCP, I did not have this issue.

I have the same issue with ATi and Nvidia cards, so if it is driver related, it's a driver issue with both cards. I am using the latest drivers in both cases.
 
bryanb said:
I've tried both scaling options I have, which are "Full" and "Original". Neither one fixes it. Seems like the monitor will only accept TV resolutions like 720p and 1080p when using this type of video card.
Click to expand...

from what ive read about this monitor, when you have the options "Full and Original", your monitor is thinking youve connected something such as a dvd player, ps3, or something of that nature, that would only output in rezes such as 1080p. when you connect a source that the monitor deems as a "computer" resolution, it should give you the options for "Full and 1:1", so basically its thinking your computer is a dvd player, and trying to keep the resolution at some standard HDTV resolution.
 
fusionisthefuture said:
from what ive read about this monitor, when you have the options "Full and Original", your monitor is thinking youve connected something such as a dvd player, ps3, or something of that nature, that would only output in rezes such as 1080p. when you connect a source that the monitor deems as a "computer" resolution, it should give you the options for "Full and 1:1", so basically its thinking your computer is a dvd player, and trying to keep the resolution at some standard HDTV resolution.
Click to expand...

Seems like this will be a major problem, as more and more cards are coming with HDMI support over the DVI port using an adapter.
 
You have tried to change the OSD where it says Video to PC, right?
Also, I have asked you before, have you install the drivers for the monitor?
IF nothing works, you can try to set up custom resolutions, that might solve your problem.
 
BlueMak said:
You have tried to change the OSD where it says Video to PC, right?
Also, I have asked you before, have you install the drivers for the monitor?
IF nothing works, you can try to set up custom resolutions, that might solve your problem.
Click to expand...

Really seems like the monitor is going into some sort of TV mode when it's connected via HDMI (even over DVI on these cards). The text gets blurry, colors look wrong etc. I can only get 1080p to work if I force it using TV modes in the ATi driver. If I just set it to 1920x1080 through the display control panel, I get a blank screen.

Is there a way to check the firmware version? What is the latest firmware?
 
I have ATi 2600XT, had the same issue:

- when use DVI-HDMI cable, upgrade to latest ATi driver, the problem went away :D
- when use HDMI cable with video card's HDMI adaptor,
* 1920x1200 same issue, L246WP detects as HDMI/480i, probably becase HDMI output support all display resolutions up to 1920x1080 according to http://ati.amd.com/products/Radeonhd2600/specs.html ;)
* 1920x1080, L246WP detects as HDMI/1080p, screen display is okay but text is blurry :rolleyes:
 
wlee1225 said:
I have ATi 2600XT, had the same issue:

- when use DVI-HDMI cable, upgrade to latest ATi driver, the problem went away :D
- when use HDMI cable with video card's HDMI adaptor,
* 1920x1200 same issue, L246WP detects as HDMI/480i, probably becase HDMI output support all display resolutions up to 1920x1080 according to http://ati.amd.com/products/Radeonhd2600/specs.html ;)
* 1920x1080, L246WP detects as HDMI/1080p, screen display is okay but text is blurry :rolleyes:
Click to expand...

Which driver version fixed the problem for you? Did you have to change any settings or it just worked? The last version I tried before returning the ATi card was 7.9

Strange that nVidia cards exhibit the same behavior.
 
Anyone tried the xbox 360, via hdmi? Is the pixelmapping correct? Does it leave a black bar over and under?
 
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