Le 16/07/2010 22:19, Alex Dănilă a écrit :
Package: xorg
Version: 1:7.5+6
Severity: normal
Some types of acceleration are not availabe to the second simultaneous
log-in on the machine. I only say some types,
because some things work fast, others slow:
Fast:
-window resizing (both kwin and metacity)
-Opera animations, drawing, javascript
-KDE Plasma animations
-video seems to work decently.
Slow:
-window moving (both kwin and metacity)
-scrolling (Dolphin, Opera)
-3d is much slower (TORCS: 5-15 fps on the first login, 0-1 fps on the
second)
Additionaly, Kwin compositing cannot be enabled on the second login,
only on the first. Please ask for any
information I failed to provide.
Reproduce:
-login to an desktop session
-start a new desktop session without closing the first one, and notice
the problems with this session.
Video driver:
xserver-xorg-video-radeon 1:6.13.1-1
This situation has been the same for a long time in Debian Unstable
(more than a year), regardless of drm, mesa, kde version, xorg version.
In the past, DRI was only available to a single session. But with KMS
and modern stuff, it should work fine. Make sure you run KMS (which
means kernel at 2.6.32-5 from testing) and (if it doesn't) please send
your X log.
Brice
PS: javascript certainly has nothing to do with X :)