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[Ivan Katanović <igadmile@xxxxxxxxx>]

I have a very similar problem. When trying to boot Lucid post alpha 3, 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.....
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 attachment are files obtained while in vesa.


** Attachment added: "dmesgboot.txt"
   http://launchpadlibrarian.net/41118835/dmesgboot.txt

-- 
[G72M] Screen corruption when using KMS.  Dell Latitude D620 / Quadro NVS 110M/GeForce Go 7300
https://bugs.launchpad.net/bugs/539730
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