On 02.07.2015 01:39, Alfonso García wrote: > > NOTE: I insists that with the previous version of driver (Debian 7) I didn't > have any problem, all works fine. All stop working with the upgrade.
There's no going back to UMS, you have to find some kind of solution with KMS. > On 01/07/15, Michel Dänzer wrote: >> On 01.07.2015 01:44, alfon wrote: >>> >>> Section "Extensions" >>> Option "Composite" "Disable" >>> EndSection >> >> Why are you disabling this? If the desktop environment (DE) you're using >> (which is it?) supports compositing, that might alleviate the problem. > > I really don't know why I disabled this, I just was proving different > options. > > I'm working with the OpenBox window manager. Can you try if a simple compositing manager (e.g. xcompmgr -a) helps with the problem (with the options below commented out)? >>> Option "EXAVSync" "on" >> [...] >>> Option "ColorTiling" "off" >>> Option "ColorTiling2D" "off" >>> Option "EXAPixmaps" "on" >> >> Does commenting out these options help? >> > > No, Please provide /var/log/Xorg.0.log corresponding to commenting out everything I recommended in xorg.conf. > the only thing that help something is turned off accel: > > Option "Accel" "off" > > If I do that, I can get an usable X environment. Which it is paradoxical, > because I'm working without graphic acceleration Your GPU has a very limited amount of VRAM, so the kernel radeon driver probably has to migrate buffers between VRAM and GTT a lot, which slows things down. Disabling Option "EXAPixmaps" (which is the default for that small amount of VRAM) should avoid that. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
