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#1 2009-11-07 17:07:39

xavi117
Member
Registered: 2009-11-07
Posts: 12

ATI + KDE works really slow

yesterday a decided to install arch linux for the first time and got some problems.

i tried to install KDE but it works really slow.I mean it takes me 2-3 secs while open Kickoff menu or close some window.

I googled a bit a i found that there is some bug in last xorg update. but all complaination were from owners of nvidia grafic cards and i got ATI mobility Radeon X2300.

but i decided to use that solution and downgrade xorg package.
I downgrade only packages which start wit xorg-server.....
and prevent them from upgrading again

i noticed some improvement but its still slow an performance is low. now i doest take 3 sec but only 2

then i tried to use glxgears but here is the output

# glxgears
Invalid MIT-MAGIC-COOKIE-1 keyError: couldn't open display :0.0

Because i am new in Arch and linux at all, I  thing that there is some problem with my graffic card driver or something,

please culd you tell me if  I should downgrade any other package or wait until xorg will by repaired? or what?

And the second issue. Why I cant use glxgears ?

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#2 2009-11-07 17:14:35

MadTux
Member
Registered: 2009-09-20
Posts: 553

Re: ATI + KDE works really slow

First off, I would try to disable kernel mode setting. There seem to be some problems with it and ATI cards. Follow this guide to disable KMS:

http://wiki.archlinux.org/index.php/ATI … _.28KMS.29

What video driver do you use (xf86-video-ati, etc.)?

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#3 2009-11-07 17:42:43

xavi117
Member
Registered: 2009-11-07
Posts: 12

Re: ATI + KDE works really slow

i use xf86-video-radeonhd driver

i tryied to disalbe KMS. it sems to be much more quicker now and glxgears works now, but its still not good.
here is output:

glxgears
993 frames in 5.0 seconds = 198.133 FPS
1291 frames in 5.0 seconds = 258.007 FPS
1309 frames in 5.0 seconds = 261.700 FPS
1302 frames in 5.0 seconds = 260.397 FPS
1320 frames in 5.0 seconds = 263.929 FPS
1320 frames in 5.0 seconds = 263.975 FPS
1312 frames in 5.0 seconds = 262.378 FPS
1320 frames in 5.0 seconds = 263.929 FPS
1321 frames in 5.0 seconds = 264.048 FPS
1297 frames in 5.0 seconds = 259.268 FPS
1321 frames in 5.0 seconds = 264.190 FPS
1316 frames in 5.0 seconds = 263.188 FPS

is it good or bad? big_smile

but whole problem with kde is still here.
I try to describe it in more details

when i klick on the window in backgroud or minimalize some window, it goes in few steps.
frist i see the border of the window i shoud see on the top. then is fills with the colour and finaly it show me all the contend thet shoul be there. and It all take between 1-2 sec.
It really annoying when i have to wait so long just to switch active window.

btw.thnx for such quick response

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#4 2009-11-08 13:20:56

Mikko777
Member
From: Suomi, Finland
Registered: 2006-10-30
Posts: 837

Re: ATI + KDE works really slow

xavi117 wrote:

is it good or bad? big_smile

With old xorg and catalyst driver:

[~]: glxgears
30798 frames in 5.0 seconds = 6159.557 FPS

So yeah thats a driver and xorg problem you have.

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