I tried to boot some other kernels, and got mixed results: - 2.6.39-997-generic_amd64 [latest one from drm-intel-next from kernel-ppa] -> black screen on boot, fan spinning up and lots of disk activity, but doesn't seem to boot
- 2.6.36-020636-generic_amd64 [an older one from 10.10, from the kernel-ppa] -> initally black screen, flickers, shows log messages for a second, then black forever (but actually boots, can hear login prompt sound) - 2.6.35-28-generic_amd64 (2.6.35-28.50) [a previous one found on my system] -> boots fine, and eDP1 is gone from xrandr (yay!), but unstable, no network, various errors in syslog (e.g CPU power or thermal limit exceeded, etc.) So, I'm back to 2.6.38-8-generic, but it seems more and more unstable wrt intel drm. I often get video freezes when plugging in VGA or changing modes with xrandr, with this in syslog: "BUG: unable to handle kernel NULL pointer dereference". In case it helps, I'm attaching an extract from syslog with a few of these, including trace, but I suppose this might be a different bug? ** Attachment added: "freeze trace syslog extract" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/773734/+attachment/2109104/+files/intel_drm_freeze_trace.log ** Summary changed: - [Natty] spurious eDP1 display detected as permanently connected, on i915 + [Natty] [i915] spurious eDP1 display detected as permanently connected (HP ProBook 5320m) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/773734 Title: [Natty] [i915] spurious eDP1 display detected as permanently connected (HP ProBook 5320m) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
