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Old 12-06-05, 07:26 PM   #13
23meg
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Default Re: 8174 + xorg: can't get native resolution on laptop LCD

netllama: can you elaborate on what exactly is causing this behavior a bit, or direct me to a page where I can learn the details? It can't reproduce it with any other driver version than 8174, and I wonder if it's specific to 1400x1050.
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Old 12-06-05, 09:13 PM   #14
netllama
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Default Re: 8174 + xorg: can't get native resolution on laptop LCD

I'm afraid there are no public details on this bug (and the non-public details are roughly the same as the information I've already provided here).

Thanks,
-Lonni
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Old 12-06-05, 10:27 PM   #15
23meg
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Default Re: 8174 + xorg: can't get native resolution on laptop LCD

Hope it gets fixed soon; I was hoping for an increase in 2D performance in the new driver and it turned out to be unusable.
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Old 12-08-05, 02:57 PM   #16
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Default Re: 8174 + xorg: can't get native resolution on laptop LCD

I have the same problem with 8174 version of the driver versus 7176. I have a Toshiba Tecra M3 laptop. The GPU is Nvidia GeForce Go 6600 with 128MB of ram. My native resolution is 1400x1050 and when I use 8174 the desktop extends beyond the visible area, even though the resolution is detected properly. I am posting thinking another pair of log files might be helpful in identifying the problem.
Attached Files
File Type: log nvidia-bug-report.7176.log (62.5 KB, 123 views)
File Type: log nvidia-bug-report.8174.log (65.4 KB, 122 views)
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Old 12-08-05, 03:31 PM   #17
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Default Re: 8174 + xorg: can't get native resolution on laptop LCD

It seems the display size is detected differently in different driver versions
7176:
Code:
NVIDIA(0): Display dimensions: (290, 220) mm
8174:
Code:
(--) NVIDIA(0): Maximum Image Size           : 320mm x 240mm
Try adding the following to your xorg.conf
In the Monitor section:
Code:
DisplaySize	290 220
assuming 290x220 are the correct dimensions for your display
In the device section:
Code:
Option "UseEdidDpi" "FALSE"
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Old 12-08-05, 03:33 PM   #18
23meg
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Default Re: 8174 + xorg: can't get native resolution on laptop LCD

Mine is a close model, a Toshiba Tecra M4. I hope your log files will help the developers further for isolating the bug.

netllama, is there any chance of a patch being published to fix this bug before the next release?
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Old 12-08-05, 03:40 PM   #19
netllama
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Default Re: 8174 + xorg: can't get native resolution on laptop LCD

Patches can only be provided for the sourcecode portions of the driver (the kernel module). The binary portion of the driver (the X module) cannot be patched. Its not yet clear which portion of the driver contains this bug.

No further log files are needed for this issue. I've reproduced it on an M3 system that we have here, and the issue is currently with development.

-Lonni
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Old 12-08-05, 04:01 PM   #20
monur
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Default Re: 8174 + xorg: can't get native resolution on laptop LCD

Thank you for the (surprisingly quick) reply. I forgot to mention that I had already tried putting your suggestions into xorg.conf , as to no avail, as you have already realized. Good luck in debugging
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Old 12-08-05, 04:08 PM   #21
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Default Re: 8174 + xorg: can't get native resolution on laptop LCD

I have of course noticed the same thing with my Tecra M3 and its 6600. Something strange now though. I rolled back to the 7676 driver and the problem *stayed*. Which is quite odd because I didn't have the problem with this driver previously to using 8174.
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Old 12-08-05, 10:24 PM   #22
philipl
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Default Re: 8174 + xorg: can't get native resolution on laptop LCD

Quote:
Originally Posted by netllama
Thanks for the logs, they were just what I needed to see. This turns out to be the same issue as pre-existing bug 195559, which is currently being investigated by development.

Right now, I'm afraid that the only work-around is to downgrade to 1.0-7676.
I've got a Toshiba Tecra M3 here which is also 1400x1050 native. What's clearly happening is that the driver gets the idea into its head that the panel is really 1600x1200, so it stretches (or re-centres) the screen as if the panel was 1600x1200 and then it extends off the bottom right.

Still, I'm glad you have this reproduceable in house.

Back to 7676 for me. :-(
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Old 12-24-05, 02:12 AM   #23
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Default Re: 8174 + xorg: can't get native resolution on laptop LCD

For the record, 8178 doesn't fix the problem. There was no claim that it would, but one always hopes.
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Old 01-12-06, 04:03 PM   #24
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Default Re: 8174 + xorg: can't get native resolution on laptop LCD

I been stuck using 7676 since discovering this problem, (and this thread), with my Toshiba laptop. I'm just curious besides trying the drivers, what's the easiest way to see if the bug is fixed in future versions? Is this something that would be stated in the README with the drivers? (Just look for bug 195559?)

Thanks,

jason
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