GeForce 8200: compositing + font antialiasing = very slow gtk

[VladimirDidenko]

Originally Posted by gradinaruvasile

I couldnt reproduce it on Debian Testing+Xfce+compiz - with compiz the clearlooks theme was even faster than without (2.5-2.8 with compiz, ~3.5 with xfwm).
Nvidia 8200/275.09.04.

Do you use freetype with patch enabling subpixel rendering? AFAIK default debian freetype package doesn't include this patch. Alt Linux and Ubuntu enable subpixel rendering by default.

[sandipt]

Please try some latest drivers and let us know the results ftp://download.nvidia.com/XFree86/

280.04
275.09.07
275.09
270.41.19

[gradinaruvasile]

Originally Posted by VladimirDidenko

Do you use freetype with patch enabling subpixel rendering? AFAIK default debian freetype package doesn't include this patch. Alt Linux and Ubuntu enable subpixel rendering by default.

I use the subpixel-enabled libcairo2 from Hadrets PPA. The characters look exactly like in Ubuntu.

BTW i had an issue like this, but was related to a specific cairo version if i remember correctly (not that sure thugh, but it was certainly a small library) - then i had ~12 seconds with Cleanlooks without compiz (i had no compiz installed then).

I just re-checked with the 275.09.07 drivers - 3.38 without compiz and 3.47 with compiz.

[VladimirDidenko]

Originally Posted by sandipt

Please try some latest drivers and let us know the results ftp://download.nvidia.com/XFree86/

280.04
275.09.07
275.09
270.41.19

I tested 275.09.07 with compiz, gnome-shell and xfwm4 - the problem is still there: gtkperf running about 4 seconds with xfwm4 and 30 - 35 seconds with compiz or gnome-shell. Also even without compositing smooth scrolling in gtk browsers(tested with Firefox and Chromium) works very poorly. In Opera smooth scrolling works fine even with compositing enabled.

Upd: with nouveau smooth scrolling works fine in all browsers.

Just in case I will attach nvidia-bug-report.log.

Cairo version - 1.10.2
Compiz version - 0.8.8
Gnome shell - 3.0.2