Mailinglist Archive: opensuse-factory (1233 mails)

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Re: [opensuse-factory] Graphic subsystem problem...
  • From: "David C. Rankin" <drankinatty@xxxxxxxxxxxxxxxxxx>
  • Date: Fri, 21 Nov 2008 02:46:47 -0600
  • Message-id: <49267577.5060109@xxxxxxxxxxxxxxxxxx>
David C. Rankin wrote:
Fred A. Miller wrote:
David C. Rankin wrote:
Fred A. Miller wrote:
After some more testing, it's obvious that the "slowness" and locking up
of the 11.1b5 KDE 4.1 desktop is either the Intel video driver or
problems in "x"....I suspect the later.

Fred

As in my 11.1B5 review post, I can't put my finger on the problem, but I
notice
it. Especially when working with KDE control center.
I assumed the subsystem, being "x" because there are the same problems
on systems with other video than Intel.

Fred


I have an nvidia 8800GT and I saw it with the fbdev (frame buffer), nv
and
nvidia drivers. I still see it with the graphics system fully configured and
the graphics performance under 11.1 is 50% what it is under 11.0 kde3. On 11.1
Beta 5 I get:

21:13 arete~> glxgears
20919 frames in 5.0 seconds = 4183.754 FPS
22198 frames in 5.0 seconds = 4439.556 FPS
21181 frames in 5.0 seconds = 4236.142 FPS

I get over 10,000 FPS in 10.3 and over 9,000 FPS in 1.0. There is
something
wrong with the Graphics subsystem.


This issue may very well be a KDE4 issue. I decided to load KDE3
tonight to
triage the jilted system and, on a lark, recalled the glxgears issue so I
decided to test with glxgears. The differences were startling to say the least.
All I did was install KDE3 on the exact same machine and log into KDE3 and then
start glxgears; I was shocked at the differences in the frame rates for the
same hardware and with the desktop being the only difference. The KDE4 numbers
are above. Now,here are the frame rates from KDE3:

01:08 arete~> glxgears
31248 frames in 5.0 seconds = 6237.533 FPS
30700 frames in 5.0 seconds = 6139.998 FPS
29088 frames in 5.0 seconds = 5817.566 FPS
29807 frames in 5.0 seconds = 5953.829 FPS
29799 frames in 5.0 seconds = 5956.565 FPS
29687 frames in 5.0 seconds = 5930.866 FPS

A full 30+% faster than the frame rates seen under KDE4

--
David C. Rankin, J.D.,P.E. |
Rankin Law Firm, PLLC | Countdown for openSuSE 11.1
510 Ochiltree Street | http://counter.opensuse.org/11.1/small
Nacogdoches, Texas 75961 |
Telephone: (936) 715-9333 | openSoftware und SystemEntwicklung
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