Saturday, June 7, 2008

Slow on NVidia?

If you have an NVidia graphics card and Konsole in trunk seems very slow in a composited desktop (eg. KWin 'desktop effects' or compiz are enabled) then start Konsole with the --notransparency option. Intel/ATI are not affected.

I do not know the cause of the problem, I'll post an update when I find out.

3 comments:

BogDan said...

Try run this: nvidia-settings -a InitialPixmapPlacement=2 -a GlyphCache=1

Bille said...

There's a long thread about this issue here:

http://www.nvnews.net/vbulletin/showthread.php?t=65857

It's even slow without compositing. The 8xxx series cards are worse than the same model 7xxx cards.

Various people tried the experimental glyphcache thing and it didn't make much difference.

What might be effective is hacking Konsole to run a benchmark scrolling a set text (something Project Gutenberg maybe) at a set resolution and bitdepth and post the results using various NVidia cards, Intel and ATI. Looking bad compared to the competition might focus some NVidia product manager's attention.

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