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 -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/20150802063950.GA2773@tal
