Bug#617624: xserver-xorg-video-radeon: serious performance regression with 6.14 versions of driver and R480 chip (X850 XT)
* Michel Dänzer <daenzer@debian.org> [110310 08:27]:
>
> Which window / compositing manager is that with? Does it use OpenGL?
WM is Enlightenment DR17, from the e17 0.16.999.49898-1 Debian package.
> > The poor performance is also causing perceptible flicker in terminals
> > while typing.
>
> Which terminal emulator application is that with?
Eterm - though I'm of the opinion that the terminal emulator isn't
actually relevant. The problem appears to be affecting any application
that moves substantial amounts of graphics data around - so scrolling a
large amount of text in a terminal window causes visible flicker.
Equally, rapidly moving a window around the desktop causes very obvious
lag as the X server struggles to keep up, with ghost images being left
around for a short period afterwards.
This happened after a dist-upgrade, so something ha clearly regressed
pretty severaly with my configuration. I've tried with the xorg.conf in
place, and also without any xorg.conf at all with the same results. I've
also tried with 2.6.32 and 2.6.37 kernels.
GL support is enabled, but the window manager does not have the
compositing module loaded. Performance with glxgears is hovering around
60 frames/sec, but that may be due to syncing to Vblank. I've not tried
much with 3d yet, as I mostly use 2d apps. Any suggestions as to how to
narrow it down would be gratefully received....
Mike
Reply to: