Poor 2D Performance - Page 3

gradinaruvasile · 08-07-10, 05:22 AM

Does your GPU have dynamic clock setings (multiple performance levels)? Check in nvidia-settings -> PowerMizer.

progger1986 · 08-07-10, 02:57 PM

It has just one performance level.

Alejandro Nova · 08-09-10, 01:35 AM

Check again. I'm getting great results with the 256 series drivers. Also, you can mitigate the slowdowns by ensuring that the following options are DISABLED (one of them aggravates the leak, the other one replicates functionality present in the NVIDIA driver)

Option "TripleBuffer" "on" #it must be off
Option "BackingStore" "on" #ditto

Also, play with KWin settings. My best results are with Direct Rendering enabled. KDE 4.5 has done a serious bugfixing with that mode, and KDE 4.6 is set to revamp their entire compositing engine.

gisl · 08-09-10, 03:27 PM

I was also experiencing a very sluggish desktop (using KDE and some GTK apps). gtkperf reported some very slow 12.5s for 100 test rounds of everything.

Quote:

Originally Posted by gradinaruvasile

Does your GPU have dynamic clock setings (multiple performance levels)? Check in nvidia-settings -> PowerMizer.

Taking a look there I noticed that nvidia-settings reported GPUPowerSource = 1 (Battery) even though I was on AC. The PowerMizer mode was set to "Adaptive". So I unplugged that cable, plugged it in again. nvidia-settings still showed to be on battery. I restarted nvidia-settings, and then 2d performance was suddenly great again! The tool still reports to be on battery, though.

I'm not sure what it was that did the trick (un- and re-plugging in the cable or restarting nvidia-settings, or both), but I'm happy that the system is usable again. gtkperf reports some reasonable 2.5s now.

EDIT: I'm not using the 256 driver yet, but 195.36.

Licaon · 08-11-10, 02:22 AM

Quote:

Originally Posted by gisl

EDIT: I'm not using the 256 driver yet, but 195.36.

do try the latest driver 256.44 as some PowerMizer issues have been fixed.

progger1986 · 08-13-10, 02:49 PM

Problem seems to be fixed with 256.44

DeiF · 08-19-10, 05:14 AM

I have a 8400GS with OpenSUSE 11.3.

I fixed the Firefox scrolling lag by going to Edit->Preferences->Advanced and unchecking "Smooth scrolling".

Hope it helps someone.

Fackamato · 08-19-10, 07:58 AM

Quote:

Originally Posted by DeiF

I have a 8400GS with OpenSUSE 11.3.

I fixed the Firefox scrolling lag by going to Edit->Preferences->Advanced and unchecking "Smooth scrolling".

Hope it helps someone.

I've never used smooth scrolling in Linux with my 8600m gt, it's always been super slow, no matter what dist/de/driver.

hl_ · 08-19-10, 09:50 AM

I guess you can blame Firefox for that, not X or the GPU driver.

Fackamato · 08-19-10, 09:52 AM

Quote:

Originally Posted by hl_

I guess you can blame Firefox for that, not X or the GPU driver.

Maybe. I don't know, but of course, it's a possibility.

08-07-10, 05:22 AM	#25
gradinaruvasile Registered User Join Date: May 2008 Posts: 199	Re: Poor 2D Performance Does your GPU have dynamic clock setings (multiple performance levels)? Check in nvidia-settings -> PowerMizer.

08-07-10, 02:57 PM	#26
progger1986 Registered User Join Date: Aug 2008 Posts: 19	Re: Poor 2D Performance It has just one performance level.

08-09-10, 01:35 AM	#27
Alejandro Nova Registered User Join Date: Sep 2006 Posts: 26	Re: Poor 2D Performance Check again. I'm getting great results with the 256 series drivers. Also, you can mitigate the slowdowns by ensuring that the following options are DISABLED (one of them aggravates the leak, the other one replicates functionality present in the NVIDIA driver) Option "TripleBuffer" "on" #it must be off Option "BackingStore" "on" #ditto Also, play with KWin settings. My best results are with Direct Rendering enabled. KDE 4.5 has done a serious bugfixing with that mode, and KDE 4.6 is set to revamp their entire compositing engine.

08-13-10, 02:49 PM	#30
progger1986 Registered User Join Date: Aug 2008 Posts: 19	Re: Poor 2D Performance Problem seems to be fixed with 256.44

08-19-10, 05:14 AM	#31
DeiF Registered User Join Date: Oct 2008 Posts: 114	Re: Poor 2D Performance I have a 8400GS with OpenSUSE 11.3. I fixed the Firefox scrolling lag by going to Edit->Preferences->Advanced and unchecking "Smooth scrolling". Hope it helps someone.

08-19-10, 09:50 AM	#33
hl_ Registered User Join Date: Feb 2009 Posts: 138	Re: Poor 2D Performance I guess you can blame Firefox for that, not X or the GPU driver.