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Old 06-21-07, 02:09 PM   #1
rg2003
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Post 100.14.11 - NVIDIA(GPU-0): Unable to read EDID for display device DFP-0

The problems described in my previous thread on 100.14.09 are still there with version 100.14.11:

...........
(II) NVIDIA(0): Support for GLX with the Damage and Composite X extensions is
(II) NVIDIA(0): enabled.
(WW) NVIDIA(GPU-0): Unable to read EDID for display device DFP-0
(II) NVIDIA(0): NVIDIA GPU GeForce 7300 GT (G73) at PCI:1:0:0 (GPU-0)
(--) NVIDIA(0): Memory: 262144 kBytes
(--) NVIDIA(0): VideoBIOS: 05.73.22.25.51
(II) NVIDIA(0): Detected PCI Express Link width: 16X
(--) NVIDIA(0): Interlaced video modes are supported on this GPU
(--) NVIDIA(0): Connected display device(s) on GeForce 7300 GT at PCI:1:0:0:
(--) NVIDIA(0): DFP-0
(--) NVIDIA(0): DFP-0: 330.0 MHz maximum pixel clock
(--) NVIDIA(0): DFP-0: Internal Dual Link TMDS
(II) NVIDIA(0): Assigned Display Device: DFP-0
(WW) NVIDIA(0): No valid modes for "1680x1050"; removing.
(WW) NVIDIA(0): No valid modes for "1280x1024"; removing.
(WW) NVIDIA(0): No valid modes for "1024x768"; removing.
(WW) NVIDIA(0): No valid modes for "800x600"; removing.

I have tried using the EDID from driver version 9755, and this also fails again:
.............
(II) NVIDIA(0): Support for GLX with the Damage and Composite X extensions is
(II) NVIDIA(0): enabled.
(WW) NVIDIA(GPU-0): The EDID read for display device DFP-0 is invalid: EDID
(WW) NVIDIA(GPU-0): version 1 size exceeds EDID buffer size, or checksum for
(WW) NVIDIA(GPU-0): EDID failed.
(--) NVIDIA(GPU-0):
(--) NVIDIA(GPU-0): Raw EDID bytes:
(--) NVIDIA(GPU-0):
(--) NVIDIA(GPU-0): 00 ff ff ff ff ff ff 00 5a 63 1d e5 01 01 01 01
(--) NVIDIA(GPU-0): 00 10 01 03 80 2b 1b 78 2e cf e5 a3 5a 49 a0 24
(--) NVIDIA(GPU-0): 13 50 54 bf ef 80 81 80 81 40 71 4f 31 0a 01 01
(--) NVIDIA(GPU-0): 01 01 01 01 01 01 21 39 90 30 62 1a 27 40 68 b0
(--) NVIDIA(GPU-0): 36 00 b1 0f 11 00 00 1c 00 00 00 ff 00 51 36 59
(--) NVIDIA(GPU-0): 30 36 33 32 32 30 39 38 37 0a 00 00 00 fd 00 32
(--) NVIDIA(GPU-0): 4b 1e 52 11 00 0a 20 20 20 20 20 20 00 00 00 fc
(--) NVIDIA(GPU-0): 00 56 58 32 30 32 35 77 6d 0a 20 20 20 20 00 9f
(--) NVIDIA(GPU-0):
(II) NVIDIA(0): NVIDIA GPU GeForce 7300 GT (G73) at PCI:1:0:0 (GPU-0)
(--) NVIDIA(0): Memory: 262144 kBytes
(--) NVIDIA(0): VideoBIOS: 05.73.22.25.51
(II) NVIDIA(0): Detected PCI Express Link width: 16X
(--) NVIDIA(0): Interlaced video modes are supported on this GPU
(--) NVIDIA(0): Connected display device(s) on GeForce 7300 GT at PCI:1:0:0:
(--) NVIDIA(0): DFP-0
(--) NVIDIA(0): DFP-0: 330.0 MHz maximum pixel clock
(--) NVIDIA(0): DFP-0: Internal Dual Link TMDS
(II) NVIDIA(0): Assigned Display Device: DFP-0
(WW) NVIDIA(0): No valid modes for "1680x1050"; removing.
(WW) NVIDIA(0): No valid modes for "1280x1024"; removing.
(WW) NVIDIA(0): No valid modes for "1024x768"; removing.
(WW) NVIDIA(0): No valid modes for "800x600"; removing.

I am enclosing the two bug report logs..

Robert Gadsdon.
Attached Files
File Type: log nvidia-bug-report-10.14.11.log (111.3 KB, 393 views)
File Type: log nvidia-bug-report-10.14.11-edid.log (111.0 KB, 237 views)
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Old 06-23-07, 03:52 AM   #2
raphoun
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Default Re: 100.14.11 - NVIDIA(GPU-0): Unable to read EDID for display device DFP-0

Hi,

I have the same problème with my vx2025wm screen and a nvidia 6600GT.
What is the url for the bug report?


Raphael
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Old 06-23-07, 10:39 PM   #3
younker
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Default Re: 100.14.11 - NVIDIA(GPU-0): Unable to read EDID for display device DFP-0

I have this problem too,

I use gentoo and my card is 7600GS and display is viewsonic wm2025
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Old 07-19-07, 08:23 PM   #4
karlhm76
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Thumbs down Re: 100.14.11 - NVIDIA(GPU-0): Unable to read EDID for display device DFP-0

Is anything being done about this bug?

My 22" flat panel is stuck at 640x480 when I use the DVI connector, and the x log says it can't read the EDID.

I get around it by using the VGA connector on my 7600GS. I want to upgrade soon but I don't know how I'd go with a new card with no VGA connector and I don't want to pay AU$800+ only to have it not work at all!

My monitor worked fantasic with the older driver (9755) with DVI but for some reason I can't get the old driver to install properly, and I really couldn't be bothered trying, something about not being able to find the kernel module or something.

anyway, I'll check back here in another month to see if anything's been done.

Thanks.
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Old 07-21-07, 02:49 PM   #5
mdt3k
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Default Re: 100.14.11 - NVIDIA(GPU-0): Unable to read EDID for display device DFP-0

Same problem on a 7950, upgrading to 100.14.09 or 100.14.11 from 9755 reverts me to 640x480, which the monitor won't render. Monitor is a Dell 2005FPW.

I bought it last month as I was hacked off with the driver support for my X800

Attached is xorg before, after, and edid
Attached Files
File Type: bz2 Logs.tar.bz2 (6.4 KB, 238 views)
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Old 08-01-07, 09:05 PM   #6
jsip
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Default Re: 100.14.11 - NVIDIA(GPU-0): Unable to read EDID for display device DFP-0

I have the exact same problem.

This is a pretty nasty bug and I hope there will be a fix for it soon. Until then I won't be able to use my new 8600GTS, since it's not supported by the old drivers.

I have had the same problem with both my new 8600GTS and my old 7800GS. Same monitor... Viewsonic vx2025wm.
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Old 08-03-07, 07:55 AM   #7
alex050478
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Default Re: 100.14.11 - NVIDIA(GPU-0): Unable to read EDID for display device DFP-0

My pc also cannot read EDID data when i use a cable that is to long... When i use the 2m DVI-->HDMI its fine, but when i use the 10m cable i get EDID errors in xorg log. I do get nice signal on 10m cable when i startx with 2m cable and then switch cable. I am now trying to make a custom modeline for my screen and have added to xorg.conf in device section: Option "UseEDID" "False".

Hope this helps you! I still have to get the modelines working!!
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Old 08-03-07, 08:52 AM   #8
jdeisenh
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Default Re: 100.14.11 - NVIDIA(GPU-0): Unable to read EDID for display device DFP-0

I solved the problem by using Option "CustomEDID". Then, I had to fix the checksum of the file. The checksum ist the sum of all bytes, it has to come out as '0'.
Seems that the checksum of my Dell 2000FP ist corrupt, at least the DVI part of it.
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Old 08-04-07, 12:15 PM   #9
jsip
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Default Re: 100.14.11 - NVIDIA(GPU-0): Unable to read EDID for display device DFP-0

I'm just trying to figure out why the driver was able to read my EDID info before I started using the 100 series drivers... my EDID checksum is good, so that can't be the problem.

It would be nice if the driver developers could put some effort into finding the root of this problem. Until then I'll have to deal with making custom modelines or using a D-Sub adapter with a loss of picture quality.
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Old 08-06-07, 04:59 AM   #10
pokieebs
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Default Re: 100.14.11 - NVIDIA(GPU-0): Unable to read EDID for display device DFP-0

I have a fixed EDID for the Viewsonic VX2025wm. The checksum was wrong and after fixing it my monitor now works correctly with 100.14.11. The only thing changed was the last byte, from 0x14h to 0x17h. The one-byte checksum is now zero.

Okay, the EDID is attached:
* bunzip2 edid.bin.bz2
* copy edid.bin to somewhere useful, /etc/X11/ is good enough.
* add, to your Monitor section:
Option "CustomEDID" "DFP-0:/etc/X11/edid.bin"
* please note that DFP-0 could be DFP-1 or CRT-0 depending on your setup. Read the release notes, appendix B.

So, this is supposed to be helpful, only use it on the Viewsonic VX2025wm and only if you have problems. Viewsonic may have fixed the EDID on later editions. My monitor was manufactured in early 2006 (according to the EDID).
Attached Files
File Type: bz2 edid.bin.bz2 (179 Bytes, 759 views)
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Old 08-24-07, 12:07 AM   #11
karlhm76
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Default Re: 100.14.11 - NVIDIA(GPU-0): Unable to read EDID for display device DFP-0

I don't know if this is still an issue for many, but I think I've worked it out.

I used Envy to manually install the 9639 driver for which the DVI and EDID worked correctly. I rebooted and attached the monitor to the DVI port of my card, 7600GS.

Then, using nVidia settings manager I dumped the EDID for the DVI port of the monitor. My monitor is an Acer AL2216W.

I added the following line to the xorg.conf (after backing it up first!) in the "Device" section:
Option "CustomEDID" "DFP-0:/etc/X11/edid_AL2216W.bin"
where "/etc/X11/edid_AL2216W.bin" is the full path to the EDID I dumped using nVidia settings manager.

saved xorg.conf.

used Envy to reinstall the 100.11.14 driver.

I said no to having Envy update my xorg.conf.
Rebooted.

And everything fine! Display is running 1680x1050 instead of horrible, horrible 640x480.

Confirmed driver version in nVidia settings manager is 100.11.14

Don't know if this will help anyone, but from this it seems as if in my case the driver just couldn't find the EDID from the DVI port on the monitor, rather than there being a problem with the EDID itself.
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Old 08-31-07, 07:13 AM   #12
raphoun
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Default Re: 100.14.11 - NVIDIA(GPU-0): Unable to read EDID for display device DFP-0

Quote:
Originally Posted by pokieebs
I have a fixed EDID for the Viewsonic VX2025wm. The checksum was wrong and after fixing it my monitor now works correctly with 100.14.11. The only thing changed was the last byte, from 0x14h to 0x17h. The one-byte checksum is now zero.

Okay, the EDID is attached:
* bunzip2 edid.bin.bz2
* copy edid.bin to somewhere useful, /etc/X11/ is good enough.
* add, to your Monitor section:
Option "CustomEDID" "DFP-0:/etc/X11/edid.bin"
* please note that DFP-0 could be DFP-1 or CRT-0 depending on your setup. Read the release notes, appendix B.

So, this is supposed to be helpful, only use it on the Viewsonic VX2025wm and only if you have problems. Viewsonic may have fixed the EDID on later editions. My monitor was manufactured in early 2006 (according to the EDID).

It's working for me, thank you!
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