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- - [Regression] Wrong resolution on external monitor from >185.19 (http://www.nvnews.net/vbulletin/showthread.php?t=139654)

ercoppa

10-03-09 03:34 PM

[Regression] Wrong resolution on external monitor from >185.19

I have problem with an external monitor (LG M227WD) on VGA & Nvidia 9400M. Before 185.19 no problem to set the max resolution (1920x1080), but with every release >185.19 I can set as max only 1680x1050.

Greets, ercoppa.

AaronP

10-04-09 04:26 PM

Re: [Regression] Wrong resolution on external monitor from >185.19

Please see the forum sticky posts about how to generate a bug report with a verbose mode validation log.

ercoppa

10-05-09 04:19 AM

Re: [Regression] Wrong resolution on external monitor from >185.19

1 Attachment(s)

I am sorry. I have attached the log.

More info: problem occurred on Ubuntu Jaunty, Ubuntu Karmic beta, ArchLinux 2.6.30

Greets, ercoppa.

AaronP

10-05-09 12:01 PM

Re: [Regression] Wrong resolution on external monitor from >185.19

I'm afraid your bug report is missing the verbose mode validation log that I requested. Please make sure you started X with the command "startx -- -logverbose 6" or enabled the "ModeDebug" option before generating the bug report.

However, there is one clue in your bug report file: the driver first started with the mode "nvidia-auto-select" mode, and then later switched to the metamode "DFP-0:1280x800+0+0,DFP-2:1920x1080+1280+0". Did you do that intentionally? If not, it's possible that your desktop environment is changing the screen resolution after you log in. This is typically a problem with GNOME desktops.

ercoppa

10-05-09 01:32 PM

Re: [Regression] Wrong resolution on external monitor from >185.19

Thanks for your help.

If I attached the VGA cable to TV, in nvidia-settings I have only:
http://www.ercoppa.org/images/screen.png
But from disper:

Code:

ercoppa@ercoppa-laptop:~$ disper -l

display DFP-0: Apple

 resolutions: 320x240, 400x300, 512x384, 576x432, 680x384, 640x480, 720x450, 640x512, 700x525, 800x512, 840x525, 800x600, 960x540, 1024x768, 1280x800

display DFP-2: LG M227WD

 resolutions: 320x240, 400x300, 416x312, 512x384, 576x432, 680x384, 640x480, 720x450, 640x512, 700x525, 800x512, 840x525, 800x600, 960x540, 832x624, 960x600, 896x672, 1024x768, 1152x864, 1360x768, 1280x960, 1280x1024, 1400x1050, 1680x1050, 1920x1080

Quote:

Did you do that intentionally?

Yes, I do that with:

Code:

disper -e

but disper return an error:

Code:

unrecognised scaling value for DFP-0 from nvidia-settings: 131073

Some minutes and I give you the verbose log :)

ercoppa

10-05-09 02:06 PM

Re: [Regression] Wrong resolution on external monitor from >185.19

1 Attachment(s)

Verbose log (I hope).

Greets, ercoppa.

AaronP

10-05-09 02:21 PM

Re: [Regression] Wrong resolution on external monitor from >185.19

Some of those resolutions exceed your hardware's capabilities:

Code:

(WW) Oct 05 20:58:20 NVIDIA(GPU-0):     BestFit Centered ViewPort 1920x1080 exceeds hardware

(WW) Oct 05 20:58:20 NVIDIA(GPU-0):         capabilities.

Does disabling DFP-0 or lowering the screen resolution allow the 1920x1080 mode on DFP-2? You could also try adding Option "ModeValidation" "NoExtendedGPUCapabilitiesCheck" to /etc/X11/xorg.conf, but please be aware that that option is not officially supported.

ercoppa

10-05-09 02:41 PM

Re: [Regression] Wrong resolution on external monitor from >185.19

Quote:

Does disabling DFP-0 or lowering the screen resolution allow the 1920x1080 mode on DFP-2?

Yes, if I disable DFP-0 (I use disper -S), I can have 1920x1080 on the external monitor without problems.

Quote:

You could also try adding Option "ModeValidation" "NoExtendedGPUCapabilitiesCheck" to /etc/X11/xorg.conf, but please be aware that that option is not officially supported.

Can be dangeorous?

The strange thing is with <=185.19 I have no problem :(

Greets, ercoppa.

AaronP

10-05-09 03:26 PM

Re: [Regression] Wrong resolution on external monitor from >185.19

Not dangerous -- it can't damage your hardware --, it's just possible that the screen might flicker or display the wrong thing sometimes. That check was added in recent drivers, so that might explain why older drivers allowed that mode.

ercoppa

10-05-09 04:17 PM

Re: [Regression] Wrong resolution on external monitor from >185.19

Thanks AaronP, you are very helpful, I appreciate. I try this option :)

Greets, ercoppa.

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