Hi list!
I absolutely love gnome-shell, and it's getting better every day. Awesome work!
Anyway, I have a question I was hoping you could help me with. I'm having
performance issues since buying a laptop based on the AMD E-350 platform (my
previous experience was with an Intel 945GM + Core 2 Duo laptop and the shell
was buttery smooth).
Simply going in and out of the overview mode doesn't feel as smooth as it
should, like it's skipping frames. I tried the catalyst proprietary driver and
that fixes that particular problem, it feels a lot faster. Of course, it
introduces a bunch of new ones: lots of screen tearing, crashes of Xorg and the
3D apps, artifacts, delays when drawing gtk widgets like menus, etc. Basically
it's a mess, and I'd rather use the open source drivers anyway.
I suspect the problem could be due to vsync; my system might be unable to keep
up at 60fps, and skips frames and feels bad as a result. Is there any way to
disable this behavior? I believe the fglrx driver doesn't support vblank sync
with indirect rendering so that may be one of the reasons it doesn't have the
issue. I'd honestly rather have a better framerate with screen tearing than
poor performance but synced.
Also, is there a way to measure the framerate the shell is running at? I think
that would help nailing down my problem.
Anyway, thanks for the help! Keep up the awesome job.Mark
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