dvg, this bug report is being closed due to your last comment
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
ati/+bug/378958/comments/18 regarding this being fixed with an update.
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** Changed in: xserver-xorg-video-ati (Ubuntu)
Status: Confirmed => Invalid
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https://bugs.launchpad.net/bugs/378958
Title:
xorg 100% cpu when scrolling in rdesktop
Status in “xserver-xorg-video-ati” package in Ubuntu:
Invalid
Bug description:
After upgrading from Ubuntu 8.10 to 9.04, my rdesktops to Windows servers are
unusable.
Screen refreshes inside rdesktop are awfully slow. Scrolling a logfile causes
xorg to take 100% cpu.
I'm using Ubuntu 9.04 as default as possible, no xorg.conf editing or
other vga drivers.
I have a ThinkPad Z60m with an ATI x600 mobility:
root@tp:~# lspci |grep -i vga
01:00.0 VGA compatible controller: ATI Technologies Inc M24 1P [Radeon
Mobility X600]
Very easy to reproduce with default settings:
- launch laptop from Ubuntu 9.04 live cd
- open rdesktop or tsclient to a Windows machine
- open a large logfile or a putty window
- watch how the screen in building up line per line, slowing down even more
near the buttom of the screen
I tested other ThinkPads with other vga cards, they don't have this issue.
- Z61m with ATI x1400 = ok
- R61 with nVidia = ok
A few more observations:
- 2D and 3D in Ubuntu works fine with the new default driver (great job :-)
- Visual Effects (Compiz?) work fine, on 'normal' and even 'extra', but have
no effect on the reported issue. I always disable the visial effects.
- scrolling in other applications works fine and fast (FF3, gedit,
terminal,...)
- I use rdesktop in a windowed mode (1280x960), RDPv5
- I tried rdesktop bitmap caching enable/disable, same for both
- when I launch a Windows RDP inside my rdesktop, this 2nd RDP does NOT
suffer the same problem
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