[Ubuntu-x-swat] [Bug 1183089] Re: xorg freezes on macbook air unplugging thunderbolt display
Konstantin Nazarov, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ . If it remains an issue, could you please run the following command in the development release from a Terminal (Applications-Accessories-Terminal), as it will automatically gather and attach updated debug information to this report: apport-collect -p linux REPLACE-WITH-BUG-NUMBER If reproducible, could you also please test the latest upstream kernel available (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags: kernel-fixed-upstream kernel-fixed-upstream-VERSION-NUMBER where VERSION-NUMBER is the version number of the kernel you tested. For example: kernel-fixed-upstream-v3.13-rc7 This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag: needs-upstream-testing If the mainline kernel does not fix this bug, please add the following tags: kernel-bug-exists-upstream kernel-bug-exists-upstream-VERSION-NUMBER As well, please remove the tag: needs-upstream-testing Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding. ** Package changed: xserver-xorg-video-intel (Ubuntu) = linux (Ubuntu) ** Changed in: linux (Ubuntu) Importance: Undecided = Low ** Changed in: linux (Ubuntu) Status: New = Incomplete -- 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/1183089 Title: xorg freezes on macbook air unplugging thunderbolt display To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1183089/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1183089] Re: xorg freezes on macbook air unplugging thunderbolt display
v3.10 is available for testing with hotplug interrupt storm mitigation. -- 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/1183089 Title: xorg freezes on macbook air unplugging thunderbolt display To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1183089/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1183089] Re: xorg freezes on macbook air unplugging thunderbolt display
Yes, inadequate shielding of the IO lines can cause spurious interrupts, and has certainly been in the past the main cause of hotplug storms. In this case, I suspect it is the firmware / firmware driver that is broken and causing the interrupt storm. Short of physically inspecting the signal lines, I'm not sure if you will get a definitive answer. There is no mechanism to manually disable the hotplug interrupts without recompiling the code. There is magic in v3.10 that is meant to autodetect this, but it did not actually leave any telltale in your log... So I am beginning to suspect that it is not just a lot of hotplug events, but also the processing of each one that is slow. -- 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/1183089 Title: xorg freezes on macbook air unplugging thunderbolt display To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1183089/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1183089] Re: xorg freezes on macbook air unplugging thunderbolt display
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 subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1183089 Title: xorg freezes on macbook air unplugging thunderbolt display To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1183089/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1183089] Re: xorg freezes on macbook air unplugging thunderbolt display
** Summary changed: - xorg freezes on macbook air without external thunderbolt display + xorg freezes on macbook air unplugging thunderbolt display -- 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/1183089 Title: xorg freezes on macbook air unplugging thunderbolt display To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1183089/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1183089] Re: xorg freezes on macbook air unplugging thunderbolt display
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 event to the polling mode (i.e. by disabling the interrupt)? -- 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/1183089 Title: xorg freezes on macbook air unplugging thunderbolt display To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1183089/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
