Hi, after digging around i've found some discussion about this, maybe it's wothwhile to take a look into this patches
http://lkml.org/lkml/2009/3/20/452 i'm copying here what seems to be the cause of the issue: "From: Jesse Barnes <[email protected]> commit dc1336ff4fe08ae7cfe8301bfd7f0b2cfd31d20a upstream. In the absence of kernel mode setting, many drivers disable IRQs across VT switch. The core DRM vblank code is missing a check for this case however; even after IRQ disable, the vblank code will still have the vblank_enabled flag set, so unless we track the fact that they're disabled at IRQ uninstall time, when we VT switch back in we won't actually re-enable them, which means any apps waiting on vblank before the switch will hang." The upstream bug seems to be http://bugs.freedesktop.org/show_bug.cgi?id=18879 -- [i945GME] drm:i915_getparam *ERROR* Unknown parameter 6 https://bugs.launchpad.net/bugs/341363 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
