I have a pretty powerful PC and Firefox is really laggy, especially when scolling. Audacity is insanely slow. Other graphical programs as well. Additionally, resizing graphical program windows is really slow. My window manager is bspwm, no DE.
Wondering if it has with hardware acceleration to do. I notice that the X process uses a lot of cpu when resizing.
How do I go about finding what could be the problem? Anyone think they know the problem?
Last edited by Ploppz (2014-01-26 14:05:36)
I might aswell post the full verbose of the gpu:
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Pitcairn PRO [Radeon HD 7850] (prog-if 00 [VGA controller]) Subsystem: Hightech Information System Ltd. Device 2320 Flags: bus master, fast devsel, latency 0, IRQ 43 Memory at d0000000 (64-bit, prefetchable) [size=256M] Memory at fde80000 (64-bit, non-prefetchable) [size=256K] I/O ports at ae00 [size=256] [virtual] Expansion ROM at fde00000 [disabled] [size=128K] Capabilities: <access denied> Kernel driver in use: radeon Kernel modules: radeon
Drivers (I included all packages I think are relevant):
xf86-video-ati, ati-dri, mesa (several packages)
My processor is AMD FX(tm)-8120 Eight-Core Processor (64-bit).
You might as well check/post the output of glxinfo. Especially looking for "direct" and "OpenGL".
Also the wiki of course: https://wiki.archlinux.org/index.php/ATI
Edit: And you could check your Xorg.0.log for errors.
Last edited by rebootl (2014-01-25 15:27:14)
Hm, probably this: https://wiki.archlinux.org/index.php/ATI#Glamor
The warning says glamor will be extremely slow w/ radeonsi due to a bug.
You might want to temporarly enable EXA instead.
Didn't read it entirely but there's a hint in the bug report on how to do this: https://bugs.freedesktop.org/show_bug.cgi?id=68524#c14
Basically the option:
Option "AccelMethod" "EXA"
should do it.
Don't know how far the other opts described in the link are needed.
I made a new file /etc/X11/xorg.conf.d/20-radeon.conf and copied that content in comment #14, and rebooted; still not any better
Edit: Actually, Audacity works fine now and firefox too.. so I guess it helped! Only thing is that resizing windows is really slow but that has to be my window manager, I'll investigate that. Thank you very much for your help!
Last edited by Ploppz (2014-01-26 14:05:09)
Glad you made some progress. You may want to switch back once the bug is resolved.
Still a bit strange for the resizing. I don't use bspwm myself, but it seems some people have experienced a similar problem: https://bbs.archlinux.org/viewtopic.php?pid=1342495