[Bug 12552] Display partially hidden and black stripe

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=12552





--- Comment #29 from Lucas <lucas.charles at unine.ch>  2008-01-25 07:41:05 PST ---
Created an attachment (id=13940)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=13940)
xrandr -q with external diplay plugged.

Here are the xorg log, and the output of xrandr.
It's still the same, if I do leave the default 1400x1050 on LVDS, and I try to
use the external monitor at the default 1280x1024, the bug appears.
Then if I downscale the LVDS at 1024x768 (no 1280x1024 mode for LVDS) the bug
goes out if I do xrandr --output VGA-0 --mode 1024x768.

Then I tried another thing : with the LVDS at 1024x768, and xrandr --output
VGA-0 --auto (1280x1024), the display the has a few more bugs.
The mouse on the LVDS can out of the screen, i.e in the area of the external
display which is not displayed in the LVDS. 

And some part of the external display are drawn twice (like the gnome panel,
even if it's more some bits of memory that are left here instaed of being
cleaned). 
The gnome taskbar is drawn  at 768 on both display instead of 768 for lvds and
1024 for external display. So I have the gnome taskbar that hides a bit of the
external display. While applications are drawn until the end of the external
screen. (and so out of the LVDS). 


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