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Old 03-05-11, 02:49 AM   #1
taril
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Join Date: Jan 2009
Posts: 8
Default KDE direct rendering with slow response time with 270.30

Version: 1.0 (using KDE 4.6.0)
OS: Linux - openSuSE 11.4

NVIDIA driver 270.30 (tried with different beta versions with the same result, with official version this bug is not reproducible)

Reproducible: Always

Steps to Reproduce:
1. enable desktop effects
2. enable direct rendering (special tab)
3. open terminal
4. start typing

Actual Results:
During typing chars are not shown immediately

Expected Results:
During typing chars have to be shown immediately

OS: Linux (x86_64) release 2.6.37-1-1.2-desktop
Compiler: gcc
Attached Files
File Type: gz nvidia-bug-report.log.gz (44.8 KB, 62 views)
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Old 03-05-11, 09:27 AM   #2
gqman69
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Join Date: Aug 2008
Posts: 35
Default Re: KDE direct rendering with slow response time with 270.30

Even though glxgears is not a benchmark...

260.xx i get around 7800.

270.xx i get around 2000-3000.
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Old 03-05-11, 10:09 AM   #3
DeiF
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Join Date: Oct 2008
Posts: 114
Default Re: KDE direct rendering with slow response time with 270.30

Quote:
Originally Posted by gqman69 View Post
Even though glxgears is not a benchmark...

260.xx i get around 7800.

270.xx i get around 2000-3000.
Yes, it's not a benchmark.
I get ~85 FPS and it's fine (it matches the refresh rate of my CRT). More than that is a waste (heat, electricity, etc.) and probably should be reported as a bug.

I will test the original problem though when OpenSUSE 11.4 gets officially released.
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Old 03-05-11, 10:45 AM   #4
Deanjo
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Join Date: Aug 2004
Posts: 301
Default Re: KDE direct rendering with slow response time with 270.30

Quote:
Originally Posted by taril View Post
Version: 1.0 (using KDE 4.6.0)
OS: Linux - openSuSE 11.4

NVIDIA driver 270.30 (tried with different beta versions with the same result, with official version this bug is not reproducible)

Reproducible: Always

Steps to Reproduce:
1. enable desktop effects
2. enable direct rendering (special tab)
3. open terminal
4. start typing

Actual Results:
During typing chars are not shown immediately

Expected Results:
During typing chars have to be shown immediately

OS: Linux (x86_64) release 2.6.37-1-1.2-desktop
Compiler: gcc
Can't reproduce this here, terminal has instant output when typed in. Using openSUSE 11.4 64-bit, 270.30, on GTX-580, GTX-275, GT8800 and 8200 IGP.
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Old 03-05-11, 02:59 PM   #5
taril
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Join Date: Jan 2009
Posts: 8
Default Re: KDE direct rendering with slow response time with 270.30

I can reproduce it with GT-8600 and GT-8600M
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Old 03-08-11, 06:05 PM   #6
Thedayofcondor
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Join Date: Jun 2006
Posts: 12
Default Re: KDE direct rendering with slow response time with 270.30

Same issue on Mandriva cooker, KDE 4.6, driver 270.30 and GeForce GTX 260.

While the problem is extremely noticeable in konsole (and it is driving me crazy - it is so slow keep selecting the wrong line in the bash history), I noticed slowdowns in other applications as well, in particular when highlighting text.

Disabling composite solves immediately.
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Old 03-09-11, 01:10 AM   #7
akos
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Join Date: Dec 2007
Posts: 11
Default Re: KDE direct rendering with slow response time with 270.30

I have this problem - GT240/KDE4.6.1

But I must stop compositing (ctrl+shift+F12 by default), then reenable compositing to trigger this bug. On first start everything is normal.

Only happens with 270 betas, current stable is OK.

I have a lot of problems with 270 betas, Xid errors and crashes, changing vdpau video to full screen and back, firefox or konqueror with big pictures on websites.

And powermizer still not working after resume from hibernation...
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Old 03-10-11, 05:12 AM   #8
squall38
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Join Date: Feb 2009
Posts: 13
Default Re: KDE direct rendering with slow response time with 270.30

Try using a Pixel font like Terminus instead of a Truetype font.
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