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[Ivan Katanović <igadmile@xxxxxxxxx>]

Public bug reported:

Binary package hint: xserver-xorg-video-nouveau

When trying to boot Lucid post alpha 3 (20100317), the display shuts down after start of a boot, and turns on after a wile with corrupted screen (desktop wallpaper mashed up with other colors), and I don't hear the login sound, and can't see and use mouse or panels, icons (sometimes can see mouse cursor, but can't move it, sometimes the screen is meshed up and can't see neither wallpaper).
When booting with nomodeset=0 I can use the system with vesa loaded. The laptop is Acer Extensa 5635G with Nvidia G 105M. This laptop has corrupted EDID. I know that because I was having problem with Nvidia propertary driver which, when used, divided my display to 6 little screens with resolution 640*480. Nvidia guy's said that this was occurring because EDID was invalid and they made workaround for this bug in last beta driver.

Here is the xrandr --verbose while in vesa:
Screen 0: minimum 640 x 480, current 1280 x 720, maximum 1280 x 720
default connected 1280x720+0+0 (0x108) normal (normal) 0mm x 0mm
 Identifier: 0x107
 Timestamp: 402760
 Subpixel: unknown
 Clones:
 CRTC: 0
 CRTCs: 0
 Transform: 1.000000 0.000000 0.000000
                   0.000000 1.000000 0.000000
                   0.000000 0.000000 1.000000
                    filter:
  1280x720 (0x108) 0.0MHz *current
        h: width 1280 start 0 end 0 total 1280 skew 0 clock 0.0KHz
        v: height 720 start 0 end 0 total 720 clock 0.0Hz
  800x600 (0x109) 29.3MHz
        h: width 800 start 0 end 0 total 800 skew 0 clock 36.6KHz
        v: height 600 start 0 end 0 total 600 clock 61.0Hz
  640x480 (0x10a) 18.4MHz
        h: width 640 start 0 end 0 total 640 skew 0 clock 28.8KHz
        v: height 480 start 0 end 0 total 480 clock 60.0Hz

In the attachments are files obtained while in vesa.

Edit: the symptoms of this bug are similar to the bug #539730, so I made
comment there, but was suggested to make new bug report.

** Affects: xserver-xorg-video-nouveau (Ubuntu)
     Importance: Undecided
         Status: New

-- 
Screen corruption when using KMS. Acer Extensa 5635G/Nvidia G 105M
https://bugs.launchpad.net/bugs/540632
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