Go Back   nV News Forums > Linux Support Forums > NVIDIA Linux

Newegg Daily Deals

Reply
 
Thread Tools
Old 01-09-07, 06:30 PM   #1
miltiad
Registered User
 
Join Date: Jun 2006
Posts: 26
Exclamation Ubuntu 6.10 - Strange screen resolution

Hi,

My refresh rate is 50 Hz in Gnome gnome-display-properties wich is false if I look at nvidia-settings (it is 60 Hz).

So when I play game such as World of Warcraft on wine or other game they also think that I'm in 50 Hz and it cause me some problems.

Thanks !

Ubuntu Edgy Eft 6.10
Nvidia driver 1.0-9746
Kernel 2.6.17 x86
Asus Nvidia 6600GT PCI-E 128 Mb
Xorg 7.1

If you need anything else let me know.

Here's my nvidia-bug-report.log:
Attached Files
File Type: zip nvidia-bug-report.log.zip (30.5 KB, 211 views)
miltiad is offline   Reply With Quote
Old 01-09-07, 10:43 PM   #2
Kethal
Registered User
 
Join Date: Jan 2007
Posts: 9
Cool Re: Ubuntu 6.10 - Strange screen resolution

I had a similar problem. I think because of my monitor's somewhat high resolution. X server doesn't seem to like anything with a horizontal size greater than 1600.

Backup your xorg.conf file. In nvidia-settings I setup the configuration I wanted, then told it to save the X configuration file. This should fix it right away. However, on my system this also messed up my config file (hence the backup). If it did mess it up, copy the monitor and screen sections and replace the ones in your backup to make a new config file. Then use the hybrid file. The difference seems to be the use of the "metamodes" option instead of defining a modeline.

I don't really know what metamodes are and can't find much info on them. Is this an Nvidia specific thing? Anyone know where to find some references?

Good luck,
Justin
Kethal is offline   Reply With Quote
Old 01-09-07, 10:47 PM   #3
netllama
NVIDIA Corporation
 
Join Date: Dec 2004
Posts: 8,763
Default Re: Ubuntu 6.10 - Strange screen resolution

Metamodes are documented in the driver README.
netllama is offline   Reply With Quote
Old 01-10-07, 05:30 AM   #4
miltiad
Registered User
 
Join Date: Jun 2006
Posts: 26
Default Re: Ubuntu 6.10 - Strange screen resolution

Thank you for you answer but it's exaclty what I did and the problem is still there, still 50 Hz in the Gnome resolution manager

Note: I'm using 1280x1024 with metamode since I use the nvidia-settings to configure my display.
miltiad is offline   Reply With Quote
Old 01-10-07, 06:04 PM   #5
Kethal
Registered User
 
Join Date: Jan 2007
Posts: 9
Default Re: Ubuntu 6.10 - Strange screen resolution

Did you also remove the standard modeline from xorg.conf? I'm pretty sure it needs to be taken out to work correctly. In my configuration I needed to.

The relevant parts of my screen section look like this.
---Start----
Option "metamodes" "1680x1050_60 +0+0; 1280x1024 +0+0; 1152x864 +0+0; 1024x768 +0+0; 800x600 +0+0;

SubSection "Display"
Depth 24
Modes "1600x1200" "1280x1024" "1024x768" "800x600" "640x480"
EndSubSection
----End-----

I have modeline definitions in my monitor section for the modes in the Display subsection, but there is no modeline definition for 1680x1050_60 which is listed in the xmetamodes section. If I add a modeline definition for 1680x1050, I get the weird refresh rate back.

I'm not sure how metamodes work. I read the README (Thanks netllama. I should have thought to look there). It doesn't fully explain how they work, but it seems that the monitor stores it's own timings for some preset resolutions, so you don't need to define a modeline when you use metamodes.

If you already have it setup this way, then I don't know what else would help.

If you check the menu on your monitor does it also say it's running at 50Hz?


Justin
Kethal is offline   Reply With Quote
Old 01-10-07, 11:04 PM   #6
miltiad
Registered User
 
Join Date: Jun 2006
Posts: 26
Unhappy Re: Ubuntu 6.10 - Strange screen resolution

Thanks again for your help dude.

Sadly I don't have any modeline in my screen section:
Quote:
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
Option "metamodes" "DFP: 1280x1024_60 +0+0; DFP: nvidia-auto-select +0+0; DFP: 1024x768 +0+0; DFP: 800x600 +0+0; DFP: 640x480 +0+0; DFP: 1280x1024 +0+0"
SubSection "Display"
Depth 24
Modes "1600x1200" "1280x1024" "1024x768" "800x600" "640x480"
EndSubSection
EndSection
miltiad is offline   Reply With Quote
Old 01-11-07, 11:40 AM   #7
miltiad
Registered User
 
Join Date: Jun 2006
Posts: 26
Default Re: Ubuntu 6.10 - Strange screen resolution

netllama, do you have an idea for me ?
miltiad is offline   Reply With Quote
Old 01-11-07, 11:59 AM   #8
netllama
NVIDIA Corporation
 
Join Date: Dec 2004
Posts: 8,763
Default Re: Ubuntu 6.10 - Strange screen resolution

I'm not clear how you came to the conclusion that your refresh rate is causing poor performance in a game.

According to your bug report, you're running 1280x1024 at 60 or 72Hz refresh rates. If Gnome is misdetecting a 50Hz refresh rate then you should report that to Gnome.

Thanks,
Lonni
netllama is offline   Reply With Quote

Old 01-11-07, 12:54 PM   #9
miltiad
Registered User
 
Join Date: Jun 2006
Posts: 26
Default Re: Ubuntu 6.10 - Strange screen resolution

Quote:
Originally Posted by netllama
I'm not clear how you came to the conclusion that your refresh rate is causing poor performance in a game.

According to your bug report, you're running 1280x1024 at 60 or 72Hz refresh rates. If Gnome is misdetecting a 50Hz refresh rate then you should report that to Gnome.

Thanks,
Lonni
This bug don't affect my performance in game but it's causing some nasty bug in video configuration in game because the game think that my refresh rate is 50Hz.

Actually my nvidia-settings say that I'm running in 1280x1024 at 60Hz. Games and gnome actually display (or they crash trying) that I'm running in 1280x1024 at 50Hz.
miltiad is offline   Reply With Quote
Old 01-11-07, 02:24 PM   #10
monomakh2
Registered User
 
Join Date: Jan 2007
Posts: 28
Default Re: Ubuntu 6.10 - Strange screen resolution

Try to use Option "DynamicTwinView" "False" in section device
monomakh2 is offline   Reply With Quote
Old 01-11-07, 02:43 PM   #11
miltiad
Registered User
 
Join Date: Jun 2006
Posts: 26
Default Re: Ubuntu 6.10 - Strange screen resolution

Quote:
Originally Posted by monomakh2
Try to use Option "DynamicTwinView" "False" in section device
Ok ! I'll try that as soon as I get home.

Thanks for your help everyone

Last edited by miltiad; 01-11-07 at 07:54 PM.
miltiad is offline   Reply With Quote
Old 01-11-07, 07:54 PM   #12
miltiad
Registered User
 
Join Date: Jun 2006
Posts: 26
Default Re: Ubuntu 6.10 - Strange screen resolution

That worked but I cannot use nvidia-settings any more to configure my monitors because it need DynamicTwinView to work.

Very interesting:
Quote:
Option "DynamicTwinView" "boolean"

Enable or disable support for dynamically configuring TwinView on this X screen. When DynamicTwinView is enabled (the default), the refresh rate of a mode (reported through XF86VidMode or XRandR) does not correctly report the refresh rate, but instead is a unique number such that each MetaMode has a different value. This is to guarantee that MetaModes can be uniquely identified by XRandR.

When DynamicTwinView is disabled, the refresh rate reported through XRandR will be accurate, but NV-CONTROL clients such as nvidia-settings will not be able to dynamically manipulate the X screen's MetaModes. TwinView can still be configured from the X config file when DynamicTwinView is disabled.

Default: DynamicTwinView is enabled.
http://us.download.nvidia.com/XFree8...ppendix-d.html

That let me think Xorg doesn't support metamodes correctly ?
miltiad is offline   Reply With Quote
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


Similar Threads
Thread Thread Starter Forum Replies Last Post
8800 GT and Ubuntu - Plymouth low resolution legluondunet NVIDIA Linux 3 06-24-12 03:22 PM
Stubborn screen res problem Alpsoandso NVIDIA Linux 6 05-03-12 06:00 PM
30.82 and 40.41 resolution + monitor OSD. Max3D NVIDIA Windows Graphics Drivers 2 09-05-02 02:15 AM

All times are GMT -5. The time now is 12:58 AM.


Powered by vBulletin® Version 3.7.1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 1998 - 2014, nV News.