Comment 17 for bug 378958

Actually, since my last updates the bug has gotten much worse. Firefox
hangs, etc.
It seems to be related to nvidia + xinerama, I have two nvidia cards with
four displays.

On Wed, May 5, 2010 at 4:20 PM, Bryce Harrington
<email address hidden>wrote:

> [This is an automatic notification.]
>
> Hi dvg,
>
> This bug was reported against an earlier version of Ubuntu, can you
> test if it still occurs on Lucid?
>
> Please note we also provide technical support for older versions of
> Ubuntu, but not in the bug tracker. Instead, to raise the issue through
> normal support channels, please see:
>
> http://www.ubuntu.com/support
>
>
> If you are the original reporter and can still reproduce the issue on
> Lucid, please run the following command to refresh the report:
>
> apport-collect 378958
>
> If you are not the original reporter, please file a new bug report, so
> we can work with you as the original reporter instead (you can reference
> bug 378958 in your report if you think it may be related):
>
> ubuntu-bug xorg
>
> If by chance you can no longer reproduce the issue on Lucid or if you
> feel it is no longer relevant, please mark the bug report 'Fix Released'
> or 'Invalid' as appropriate, at the following URL:
>
> https://bugs.launchpad.net/ubuntu/+bug/378958
>
>
> ** Changed in: xserver-xorg-video-ati (Ubuntu)
> Status: New => Incomplete
>
> ** Tags added: needs-retested-on-lucid-by-june
>
> --
> xorg 100% cpu when scrolling in rdesktop
> https://bugs.launchpad.net/bugs/378958
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in “xserver-xorg-video-ati” package in Ubuntu: Incomplete
>
> 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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>
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>