Re: [Intel-gfx] vsync problems with recent graphics stack and 945gm
В сообщении от 13 of September 2010 23:44:41 автор Jesse Barnes написал: > I remember seeing a similar problem on an Eee PC I had; it seemed to be > timer/interrupt related somehow. If I booted with clocksource=tsc > (or maybe it was pit) I got nice smooth animations, but if I used the > HPET things were really slow. > > Does the same work for you? Yeah, it works for me (will use it as temporary workaround). But it definitely is not clean solution, as I can't use nohz mode with tsc clocksource :) Regards Vasily signature.asc Description: This is a digitally signed message part. ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Re: [Intel-gfx] vsync problems with recent graphics stack and 945gm
On Mon, 13 Sep 2010 23:36:11 +0300 Vasily Khoruzhick wrote: > Hi there, I've just built graphics stack (xf86-video-intel, libdrm, mesa) > from > git (but I'm on 2.6.35.x kernel) and still experiencing vsync troubles > without > composite manager, here's output of glxgears: > > $ glxgears > Running synchronized to the vertical refresh. The framerate should be > approximately the same as the monitor refresh rate. > 243 frames in 5.0 seconds = 48.124 FPS > 157 frames in 5.0 seconds = 31.300 FPS > 155 frames in 5.0 seconds = 30.864 FPS > > But I'm pretty sure that vertical refresh is 60 hz! And gears are jerky (not > smooth at all). If I move mouse cursor over glxgears window FPS goes up to > 60. > And main problem is that keyboard events are also jerky, i.e. I press key and > system receives press event in 0.1-0.5 sec or so (tested via xev). > > There's no such problem when composition manager is running (i.e. effects are > enabled in KDE) > > Is there any solution for this problem? It really annoys me. I remember seeing a similar problem on an Eee PC I had; it seemed to be timer/interrupt related somehow. If I booted with clocksource=tsc (or maybe it was pit) I got nice smooth animations, but if I used the HPET things were really slow. Does the same work for you? -- Jesse Barnes, Intel Open Source Technology Center ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
[Intel-gfx] vsync problems with recent graphics stack and 945gm
Hi there, I've just built graphics stack (xf86-video-intel, libdrm, mesa) from git (but I'm on 2.6.35.x kernel) and still experiencing vsync troubles without composite manager, here's output of glxgears: $ glxgears Running synchronized to the vertical refresh. The framerate should be approximately the same as the monitor refresh rate. 243 frames in 5.0 seconds = 48.124 FPS 157 frames in 5.0 seconds = 31.300 FPS 155 frames in 5.0 seconds = 30.864 FPS But I'm pretty sure that vertical refresh is 60 hz! And gears are jerky (not smooth at all). If I move mouse cursor over glxgears window FPS goes up to 60. And main problem is that keyboard events are also jerky, i.e. I press key and system receives press event in 0.1-0.5 sec or so (tested via xev). There's no such problem when composition manager is running (i.e. effects are enabled in KDE) Is there any solution for this problem? It really annoys me. Regards Vasily signature.asc Description: This is a digitally signed message part. ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
