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#1 2013-08-28 02:58:06

Beachy
Member
Registered: 2013-05-10
Posts: 6

[SOLVED] Sometimes X is unable to read my monitor's EDID

Hi, I'm having a strange issue where there is a random chance that when I log in, my resolution will be set to 640x480. When looking at my xorg log, I found that whenever this occurs, I have this line in the log:

[  508.560] (WW) NVIDIA(GPU-0): Unable to read EDID for display device CRT-0 

It seems to happen comletely randomly roughly 50% of the time when I run startx. It can happen when I exit X and starting it again, and it can also be fixed like that.
Here are my xorg.log files (the one on the left is from when I don't have the issue, and the one on the right is from when the issue occurs):  http://diffchecker.com/9jgvlwzj
I am running 64 bit arch and I am using an nvidia gtx 660TI with proprietary nvidia drivers. My monitor is an LG flatron (LCD).

Does anybody have any idea why this might be happening, and how I could possibly fix it?

Last edited by Beachy (2013-08-28 04:34:02)

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#2 2013-08-28 03:53:26

WonderWoofy
Member
From: Los Gatos, CA
Registered: 2012-05-19
Posts: 8,412

Re: [SOLVED] Sometimes X is unable to read my monitor's EDID

What is the resolution supposed to be?

Edit: If it is a common resolution, you can specify your own EDID, and the kernel's docs actually provide a few.  Install the linux-docs package and then check out the /usr/src/linux-$(uname -r)/Documentation/EDID directory.  There is a howto in there and everything.

Last edited by WonderWoofy (2013-08-28 03:55:50)

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#3 2013-08-28 04:31:26

Gusar
Member
Registered: 2009-08-25
Posts: 3,472

Re: [SOLVED] Sometimes X is unable to read my monitor's EDID

Try a different cable.

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#4 2013-08-28 04:32:56

Beachy
Member
Registered: 2013-05-10
Posts: 6

Re: [SOLVED] Sometimes X is unable to read my monitor's EDID

Thank you WonderWoofy, that was exactly what I was looking for!

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