Arch Linux

osc~

Member

From: brazil

Registered: 2007-07-06

Posts: 117

Website

gdm with weird resolution

hello

i updated my system recently and gdm started with a resolution of 1920 x 1080 while my system is 1280 x 1024!?!?!?!
here is my xorg.conf:

Section "Screen"
    Identifier "Screen 1"
    Device     "ati"
    Monitor    "samsung"
    DefaultDepth     24
    SubSection "Display"
        Viewport   0 0
        Depth     8
        Modes    "1280x1024" "1024x768" "800x600" "640x480"
    EndSubSection
    SubSection "Display"
        Viewport   0 0
        Depth     16
        Modes    "1280x1024" "1024x768" "800x600" "640x480"
    EndSubSection
    SubSection "Display"
        Viewport   0 0
        Depth     24
        Modes    "1280x1024" "1024x768" "800x600" "640x480"
    EndSubSection
EndSection

Section "Screen"
    Identifier "aticonfig-Screen[0]"
    Device     "aticonfig-Device[0]"
    Monitor    "aticonfig-Monitor[0]"
    DefaultDepth     24
    SubSection "Display"
        Viewport   0 0
        Depth     24
    EndSubSection
EndSection

here is the xrandr:

Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 1920 x 1080
default connected 1280x1024+0+0 0mm x 0mm
   1920x1080      30.0  
   1680x1050      60.0  
   1440x900       60.0  
   1400x1050      60.0  
   1280x1024      75.0     70.0     60.0* 
   1280x960       60.0  
   1280x768       60.0  
   1280x720       60.0  
   1152x864       75.0     70.0     60.0  
   1024x768       75.0     72.0     70.0     60.0  
   800x600        75.0     72.0     70.0     60.0     56.0  
   720x480        60.0  
   640x480        75.0     72.0     60.0  
   640x400        75.0     60.0  
   512x384        75.0     60.0  
   400x300        75.0     60.0  
   320x240        75.0     60.0  
   320x200        75.0     60.0

what to do?

Xappe

Member

Registered: 2008-05-17

Posts: 105

Re: gdm with weird resolution

hmm, which of those screens are your default screen?

I know that, earlier, gdm used the first resolution listed in the screen section. I don't know how it is nowadays with these all stripped down xorg.conf's...

---

vanum est vobis ante lucem surgere

osc~

Member

From: brazil

Registered: 2007-07-06

Posts: 117

Website

Re: gdm with weird resolution

hmm, which of those screens are your default screen?

I know that, earlier, gdm used the first resolution listed in the screen section. I don't know how it is nowadays with these all stripped down xorg.conf's...

my resolution is 1280x1024, i imagine with the depth of 24. but i am not sure. how can i know?

Last edited by osc~ (2008-06-02 21:08:27)

JGC

Developer

Registered: 2003-12-03

Posts: 1,664

Re: gdm with weird resolution

You have two screen sections. One with the 1280x1024 modes you defined, and one with only DefaultDepth 24. I guess your custom 1280x1024 screen is not used at all in your config.
This is not an issue with gdm, but an issue with either your display that doesn't provide correct mode information, or the videocard driver that screws up detecting it.

osc~

Member

From: brazil

Registered: 2007-07-06

Posts: 117

Website

Re: gdm with weird resolution

You have two screen sections. One with the 1280x1024 modes you defined, and one with only DefaultDepth 24. I guess your custom 1280x1024 screen is not used at all in your config.
This is not an issue with gdm, but an issue with either your display that doesn't provide correct mode information, or the videocard driver that screws up detecting it.

but beforeeverything was fine. what could have screwed things up? the update? or is it a hardaware issue?

cheers