nouveau: resolution reducted to 1024x768

Kernels & Hardware, configuring network, installing services

nouveau: resolution reducted to 1024x768

Postby aspnair » 2010-10-28 18:05

Motherboard: M2N-MX with Athlon X2 3600 from 2006 onwards
00:0d.0 VGA compatible controller: nVidia Corporation C61 [GeForce 6150SE nForce 430] (rev a2)
Kernel: Debian Sid with 2.6.32-5-amd64 and custom 2.6.36-rc7
Monitor: Samsung 712N, 17inch, with native 1280x1024 resolution

Everything was fine with both kernels with custom 1280x1024 resolution upto yesterday. But when I rebooted today, first I noticed that X stopped working. After updating xorg.conf to 1024x768, it started working . After going through the kernel log in /var/log/messages, I noticed the following differences

Yesterdays log:
Code: Select all
nouveau 0000:00:0d.0: Detected 64MiB VRAM
nouveau 0000:00:0d.0: 64 MiB GART (aperture)
nouveau 0000:00:0d.0: Saving VGA fonts
nouveau 0000:00:0d.0: Allocating FIFO number 0
nouveau 0000:00:0d.0: nouveau_channel_alloc: initialised FIFO 0
nouveau 0000:00:0d.0: Setting dpms mode 3 on vga encoder (output 0)
nouveau 0000:00:0d.0: allocated 1280x1024 fb: 0x48000, bo ffff8800ba318800
nouveau 0000:00:0d.0: Setting dpms mode 0 on vga encoder (output 0)
nouveau 0000:00:0d.0: Output VGA-1 is running on CRTC 0 using output A


Today's log
Code: Select all
[    9.427799] [drm] nouveau 0000:00:0d.0: 64 MiB VRAM
[    9.428605] [drm] nouveau 0000:00:0d.0: 64 MiB GART (aperture)
[    9.428919] [drm] nouveau 0000:00:0d.0: Allocating FIFO number 0
[    9.429250] [drm] nouveau 0000:00:0d.0: nouveau_channel_alloc: initialised FIFO 0
[    9.429307] [drm] nouveau 0000:00:0d.0: Initial CRTC_OWNER is 0
[    9.429352] [drm] nouveau 0000:00:0d.0: Saving VGA fonts
[    9.465494] [drm] nouveau 0000:00:0d.0: DCB type 4 not known
[    9.465538] [drm] nouveau 0000:00:0d.0: Detected a VGA connector
[    9.466429] [drm] nouveau 0000:00:0d.0: Setting dpms mode 3 on vga encoder (output 0)
[    9.520020] [drm] nouveau 0000:00:0d.0: Load detected on output A
[    9.520235] [drm] nouveau 0000:00:0d.0: allocated 1024x768 fb: 0x49000, bo ffff8800b8f49600
[    9.590315] [drm] nouveau 0000:00:0d.0: Setting dpms mode 0 on vga encoder (output 0)
[    9.590319] [drm] nouveau 0000:00:0d.0: Output VGA-1 is running on CRTC 0 using output A


There is an extra "Load detected" line and the resolution got reduced from 1280x1024 to 1024x768.
Any ideas?
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aspnair
 
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Re: nouveau: resolution reducted to 1024x768

Postby Bulkley » 2010-10-28 20:32

Which version of Debian are you using? If Testing or Unstable, try booting without an xorg.conf. (rename xorg.conf so you don't lose it) You might find that your system runs better without it. If that works, strip xorg.conf down to the minimum that you actually need.
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Re: nouveau: resolution reducted to 1024x768

Postby aspnair » 2010-10-29 04:09

I changed the vga cable and apparently it is working with 1280x1024 resolution now.
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