I tried that kernel package and the external monitor is detected.
Continuously plugging and unplugging the connector did not cause a
crash.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/777944
Title:
The problem is solved in kernel 2.6.39-0. This Kernel isn't stable at this time
but works fine..
An how-to: http://blog.lome.pl/blog/ubuntu-11-4-black-screen-problem-solved/
** Changed in: linux (Ubuntu)
Status: Incomplete = Fix Released
--
You received this bug notification because you
The logs contain no error information at all. As far as the OS is
concerned, the video card is working perfectly.
This is probably caused by the external monitor negotiation / missing
VSync error combination that Andy diagnosed last week.
--
You received this bug notification because you are a
I have attached dmesg output with xdiagnose enabled.
I can get the error state file probably done on monday.
** Attachment added: dmesg_xdiagnose.txt.gz
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/777944/+attachment/2117165/+files/dmesg_xdiagnose.txt.gz
--
You received this bug
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/777944
Title:
Plugging external monitor causes kernel hardlock
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
Testing uncovered more information on this:
Running without Unity in classic mode does not cause the hard freeze.
The system sees the external monitor but it will not work.
If you have a window running glxgears, move it to the external
(nonworking) monitor and then unplug the cable, glxgears
From CurrentDmesg.txt
[drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer elapsed... blt ring idle
[waiting on 19676, at 19676], missed IRQ?
Is this duplicate of bug 761065 or just same error. However
i915.semaphores=1 option is worth testing.
--
You received this bug notification because
This is a different bug, but I suffer also from that bug. The dmesg text
is from an earlier instance of that bug.
The kernel hard freeze does not write anything to any log as it is
immediate and irrecoverable.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which
[drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer elapsed is just
a generic error message to indicate that the system has frozen... which
you already know. ;-)
For GPU lockup bugs with Intel graphics (that is, the system freeze with
movable mouse pointer), you need to collect the output of
