Re: Slow Xorg performance on dual Opteron + Radeon, Jessie 64-bit
On Sun, Aug 02, 2015 at 05:55:11PM +1200, Chris Edwards wrote:
> Hi all,
>
> I've recently installed Debian Jessie 64-bit on my (admittedly rather old)
> dual Opteron workstation, and I'm experiencing pretty bad performance in
> X11. Certain redrawing operations are extremely slow, with delays of half a
> second or more, and Xorg consumes a lot of CPU time. I've wondered if it's
> particularly a problem for older X clients using bitmapped fonts, as it's
> very noticeable when running xosview and when dragging tabs and invoking
> menus in Notion (window manager), but menu drawing in GIMP is also very
> slow. The machine has 8 GiB of RAM and only a couple are being used. It
> was formerly running Ubuntu 12 LTS and didn't have this problem.
>
> `Xorg -version` reports the following:
>
> X.Org X Server 1.16.4
> Release Date: 2014-12-20
> X Protocol Version 11, Revision 0
> Build Operating System: Linux 3.16.0-4-amd64 x86_64 Debian
> Current Operating System: Linux zaphod 3.16.0-4-amd64 #1 SMP Debian
> 3.16.7-ckt11-1 (2015-05-24) x86_64
> Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.16.0-4-amd64
> root=UUID=2cd952af-5971-442e-9254-bb15730dec1a ro quiet
> Build Date: 11 February 2015 12:32:02AM
> xorg-server 2:1.16.4-1 (http://www.debian.org/support)
> Current version of pixman: 0.32.6
>
>
> My video card is a Radeon X800 XT Platinum Edition AGP, and Xorg is using
> the RADEON driver. It's running in dual-head mode.
I'm guessing it's a driver issue.
What is the output of:
apt-cache policy firmware-linux-nonfree
You can 'browse' through /var/log/Xorg.0.log or similar, for the Xorg
log.
--
"If you're not careful, the newspapers will have you hating the people
who are being oppressed, and loving the people who are doing the
oppressing." --- Malcolm X
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