[Bug 755841]
Just as an update from the past post. Unfortunately, all my attempts for fixing this properly have failed so far, the hardware does not wants to collaborate with the software for inter-ring synchronization. So the workaround I used previously still applies - I need to disable compositing and use either vaapi or gl rendering, which perform vsync'ed screen updates. This way, I see no tearing. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/755841 Title: [sandybridge] Graphics tearing when playing video To manage notifications about this bug go to: https://bugs.launchpad.net/compiz-core/+bug/755841/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 855124]
Patch has landed in the 3.4-rc1 kernel, so closing this bug. Thank you all for all the testing and feedback! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/855124 Title: XRANDR operations very slow unless (phantom) HDMI1 disabled To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/855124/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 386855]
As per upstream bug report, it still seems to be active. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/386855 Title: [i945gm] Segfault when using colorfilter plugin To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/386855/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 814895]
Paulo, I think you was looking into similar issues for external outputs on SNB in the past, could you take a look at this please? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/814895 Title: [snb-m-gt2] Booting with external monitor fails with *ERROR* Couldn't find PLL settings for mode! To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/814895/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 954660]
@Chris, this is with RC6p patches already included, this is the worst part. I don't have any RC6-specific guesses right now to try which could fix this from the driver side. The memory speed guess is a very nice clue. All our rc6 stuff is playing with voltages and moving GPU registers back and forth when going into RC6 or out of it, so -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/954660 Title: Intel DH67GD board w/ i5-2405S cpu fails to boot with rc6 enabled To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/954660/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 939809] Re: screen turns black while running opengl app
Could you please attach the i915_error_state file which dmesg mentions? It should explain why the hang happens. It should be available in /sys/kernel/debug/dri/0/i915_error_state.. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/939809 Title: screen turns black while running opengl app To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/939809/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 873718]
I think Paulo was working on some KVM-related issues, so reassigning for him to take a look. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/873718 Title: External monitor switch flashes all the time To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/873718/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 137234]
So, is this bug still active or it was fixed meanwhile? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/137234 Title: [i945] Second display not enabled with "intel" video driver To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/137234/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 6270]
This issue is affecting a hardware component which is not being actively worked on anymore. Moving the assignee to the dri-devel list as contact, to give this issue a better coverage. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to the bug report. https://bugs.launchpad.net/bugs/6270 Title: [i855] no support for TV-Out on 8xx chipsets To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/6270/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 362582]
This issue is affecting a hardware component which is not being actively worked on anymore. Moving the assignee to the dri-devel list as contact, to give this issue a better coverage. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/362582 Title: [i830] [Needs DVO-LVDS] Installer unable to launch Xorg on Fujitsu Stylistic ST4120PW To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/362582/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 755841]
So, just as an update here while still working on a fix. You should not experience tearing if you disable compositing and use gl or vaapi output. Tearing still happens with xv/x11 due to vsync not working properly on Sandy Bridge yet, even with compositing disabled. With compositing enabled, I guess there is not much to do - the problem happens due to the nature of compositing itself. When it is used, the windows do not render directly to screen, but to an off-screen area. So the vsync is not helpful in any case - the off-screen does not synchronizes itself with it. Such tearing is not Intel-specific, it also happens on nvidia (http://www.nvnews.net/vbulletin/showthread.php?t=149276, http://nvnews.net/vbulletin/showthread.php?t=149776), and there is a nice description at https://bugzilla.gnome.org/show_bug.cgi?id=562669 as well. As for the vsync fix for making it work with xv/x11, I still don't have a working fix for it. I'll keep this bug updated when I'll have one. Thanks! Eugeni -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/755841 Title: [sandybridge] video tearing To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/755841/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
