[Ubuntu-x-swat] [Bug 761065] Re: [Sandybridge] Spurious "*ERROR* Hangcheck timer elapsed... blt ring idle" messages in dmesg when using compiz

I have the same issue here but I discovered that, if I run a 3D program like celestia, nexuiz or even a 3d screensaver like one with the wireframe ant, the problem vanishes with a -39 kernel. In a discussion with Chris Van Hoof today he tells me he thinks the new kernel just masks the error but,

[Ubuntu-x-swat] [Bug 761065] Re: [Sandybridge] Spurious "*ERROR* Hangcheck timer elapsed... blt ring idle" messages in dmesg when using compiz

@Bryce: Sorry, I didn't realize this bug was against X. It is indeed related to the kernel, that's why I tagged with kernel-bug. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/7

[Ubuntu-x-swat] [Bug 761065] Re: [Sandybridge] Spurious "*ERROR* Hangcheck timer elapsed... blt ring idle" messages in dmesg when using compiz

Another thing I forgot to add: if one starts the session in Natty with classic Ubuntu without any effects, even with the current kernel, the problem does not appear. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubun

[Ubuntu-x-swat] [Bug 762855] Re: [sandybridge-m-gt2+] Display on external monitor (vga) is black on 13" MacBook Pro 8, 1 (x86_64)

Looks like this is another symptom of bug #761065 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/762855 Title: [sandybridge-m-gt2+] Display on external monitor (vga) is black