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Bug#648521: Login fails sometimes with screen issues


On 03/12/11 15:06, dE . wrote:
This looks like a graphics or bad hardware issues. Do you have
composting enabled? Also what's your graphic chip?

Compositing: I guess so, if I go to System Settings -> Desktop effects are ON. I shut it off and the problems seems to have gone, BUT: 1. the first time I tried to re-open the desktop effects settings, KDE threw me out of the desktop, back to KDM. 2. now everything is greyed out with an information message "Desktop effects are not available on this system due to the following technical issues:" (but no issue description).

Graphic chip: Intel
[    16.906] (II) intel(0): Integrated Graphics Chipset: Intel(R) 965Q
00:02.0 VGA compatible controller: Intel Corporation 82Q963/Q965 Integrated Graphics Controller (rev 02) 00:02.1 Display controller: Intel Corporation 82Q963/Q965 Integrated Graphics Controller (rev 02)

[    0.992347] Linux agpgart interface v0.103
[    0.992462] agpgart-intel 0000:00:00.0: Intel 965Q Chipset
[ 0.992545] agpgart-intel 0000:00:00.0: detected gtt size: 524288K total, 262144K mappable
[    0.993377] agpgart-intel 0000:00:00.0: detected 8192K stolen memory
[    0.993501] agpgart-intel 0000:00:00.0: AGP aperture is 256M @ 0xe0000000

So, something between drivers and KDE indeed. Any further idea?

Thanks, Eric

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