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Old 12-08-05, 10:09 PM   #13
netllama
NVIDIA Corporation
 
Join Date: Dec 2004
Posts: 8,763
Default Re: Driver 7664 lost 1920x1200 resolution

Please start X with the following command:
startx -- -logverbose 5

and then generate a bug report against 1.0-7676 and another against 1.0-8174.

Thanks,
Lonni
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Old 12-08-05, 10:39 PM   #14
linnv
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Join Date: Dec 2005
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Default Re: Driver 7664 lost 1920x1200 resolution

Attached are verbose log files for

7174 + 7174-1296092.diff patch which works
and
7676 and 8174 which do not.
Attached Files
File Type: log 7174-xorg.log (27.8 KB, 123 views)
File Type: log 8174-xorg.log (28.1 KB, 126 views)
File Type: log 7676-xorg.log (28.1 KB, 124 views)
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Old 12-09-05, 12:18 AM   #15
netllama
NVIDIA Corporation
 
Join Date: Dec 2004
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Default Re: Driver 7664 lost 1920x1200 resolution

Those are not bug reports. Please post the bug reports that i requested.

Thanks,
Lonni
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Old 12-09-05, 02:13 AM   #16
linnv
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Default Re: Driver 7664 lost 1920x1200 resolution

Oops, sorry about that. Here are the requested bug reports.
Thanks for your help!
Attached Files
File Type: log nvidia-bug-report-7676.log (78.4 KB, 124 views)
File Type: log nvidia-bug-report-8174.log (81.7 KB, 125 views)
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Old 12-09-05, 01:52 PM   #17
netllama
NVIDIA Corporation
 
Join Date: Dec 2004
Posts: 8,763
Default Re: Driver 7664 lost 1920x1200 resolution

Thanks. I see what the issue is. For drivers before 1.0-7667, a max pixelclock of 400Mhz was being erroneously reported regardless of what the hardware was capable of doing:
(--) NVIDIA(0): Display device DFP-0: maximum pixel clock at 32 bpp: 400 MHz

I can assure you that a GeForce FX 5200 Ultra isn't capable of providing a 400Mhz pixelclock.

Starting with 1.0-7667, and then with additional bug fixes in 1.0-7676 & 1.0-8174, the true max pixelclock was being detected. In your case:
(--) NVIDIA(0): DFP-0: maximum pixel clock: 135 MHz
(--) NVIDIA(0): DFP-0: Internal Single Link TMDS

I'm afraid that the behavior you were seeing in the past was a bug. Single link TMDS cannot drive 1920x1200. What was happening to make this 'work' prior to 1.0-7667 was that the refresh rate was being artificially & silently reduced (likely to somewhere around 43Hz) to allow 1920x1200 to work.

This modeline might work (with a 43Hz refresh rate):
Modeline "1920x1200_43.00" 134.55 1920 2032 2232 2544 1200 1201 1204 1230

There are tentative plans right now to introduce a new option(s) that would allow you to override the 'safe' values that the driver detects (at your own risk), however such an option wouldn't be implimented in the near future.

Sorry that I don't have better news.

Thanks,
Lonni
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Old 12-09-05, 04:21 PM   #18
linnv
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Default Re: Driver 7664 lost 1920x1200 resolution

The 43Hz modline does not work for me as the monitor refuses to display something that is set out of it's expected vrefresh range. I guess a value that is set but not actually delivered at the correct rate gets through. I've been thinking about getting a new system for some time, I guess this gives me an excuse to do so.

Thanks again for your help.
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