[Ubuntu-x-swat] [Bug 1183089] Re: xorg freezes on macbook air unplugging thunderbolt display

2013-05-24 Thread Konstantin Nazarov
I'm willing to do some kernel debugging if necessary, including git bisects, recompilation and minor modifications. I'm not that good in kernel hacking, although I'll be able to help at least partially. -- You received this bug notification because you are a member of Ubuntu-X, which is subscri

[Ubuntu-x-swat] [Bug 1183089] Re: xorg freezes on macbook air unplugging thunderbolt display

2013-05-23 Thread Konstantin Nazarov
Chris, Is it possible that there is some physical damage on the connector inside the laptop that causes jitter, which in turn causes continuous triggering of the corresponding APIC line? Is there a way to verify it? And do you know if I can manually switch the handling of this particular hotplug

[Ubuntu-x-swat] [Bug 1183089] Re: xorg freezes on macbook air without external thunderbolt display

2013-05-23 Thread Konstantin Nazarov
attaching perfreport (note that I used perf for kernel 3.8, since there is no perf for 3.10 in official repository) ** Attachment added: "perfreport.log" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1183089/+attachment/3684770/+files/perfreport.log -- You received

[Ubuntu-x-swat] [Bug 1183089] Re: xorg freezes on macbook air without external thunderbolt display

2013-05-23 Thread Konstantin Nazarov
Xorg stack trace: knazarov:~/ $ sudo cat /proc/`pidof X`/stack [16:36:03] [] intel_dp_aux_wait_done+0x16f/0x1a0 [i915] [] intel_dp_aux_ch+0x30b/0x460

[Ubuntu-x-swat] [Bug 1183089] Re: xorg freezes on macbook air without external thunderbolt display

2013-05-23 Thread Konstantin Nazarov
Attaching dmesg ** Attachment added: "dmesg" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1183089/+attachment/3684769/+files/dmesg -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu.

[Ubuntu-x-swat] [Bug 1183089] Re: xorg freezes on macbook air without external thunderbolt display

2013-05-23 Thread Konstantin Nazarov
Installed kernel 3.10: knazarov:~/ $ uname -a [15:54:12] Linux kn 3.10.0-994-generic #201305230446 SMP Thu May 23 08:47:34 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux The lockup sti

[Ubuntu-x-swat] [Bug 1183089] Re: xorg freezes on macbook air without external thunderbolt display

2013-05-23 Thread Konstantin Nazarov
Chris, Is there anything else I can do to verify that this is really an hotplug irq storm? Maybe some debugging information or additional logs will help? -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https:

[Ubuntu-x-swat] [Bug 1183089] [NEW] xorg freezes on macbook air without external thunderbolt display

2013-05-22 Thread Konstantin Nazarov
Public bug reported: Xorg hangs on macbook air mid 2012 when the external thunderbolt display is being unplugged. Also, when I try to boot without the external display, the OS hangs immediately on the kernel boot splash. If I then plug the display in again, the OS unfreezes and continues to ru