https://bugs.freedesktop.org/show_bug.cgi?id=28474 --- Comment #15 from Andrew Randrianasulu <randrik@xxxxxxx> 2010-08-19 10:55:29 PDT --- (In reply to comment #14) > Created an attachment (id=37982) View: https://bugs.freedesktop.org/attachment.cgi?id=37982 Review: https://bugs.freedesktop.org/review?bug=28474&attachment=37982 > add module parameter to disable polling > > Hi, > > I'm not sure we're all having the same problem, anyway since this bug report > seems to be more active than the one I started I'll post here too. > > I came back from vacation and found a patch from Chris Wilson in dri-devel who > added a parameter to disable polling; since my bisection run pointed to the > commit who enabled polling as the origin of my problem, I quickly adapted the > patch to vanilla 2.6.35 to do some tests. > > The patch is attached to this comment; to try it patch the kernel and boot with > drm_kms_helper.poll=0; be careful, without this parameter sometime X refused to > start here. Since this was only a test I didn't look too hard, I think it's > related to the slow work->workqueues conversion. > > Anyway, with polling disabled I was able to play with openarena for about 15 > minutes, while with polling (without the patch) I had a hardlock in 30-60s. > > Since this could be important, I have a VGA/DVI card and I'm using the DVI > port, with nothing connected to the VGA port. Tried this patch on nouveau (as included in drm-radeon-testing tree, based on 2.6.35. Yes, odd.) . But something goes wrong. modinfo show no additional parameters, and booting with drm_kms_helper.poll=0 just prevent drm/nouveau from loading. Reason for testing on nouveau: polling TV-out seems to be expensive operation here, at least for old single-core AMD K7. -- Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
