[Bug 1510125] Re: occasionally loses external monitor
*** This bug is a duplicate of bug 1742602 *** https://bugs.launchpad.net/bugs/1742602 ** This bug has been marked a duplicate of bug 1742602 Blank screen when starting X after upgrading from 4.10 to 4.13.0-26 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1510125 Title: occasionally loses external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1510125/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1510125] Re: occasionally loses external monitor
This is present for: - GNOME/Wayland session - Ubuntu 17.10 - 4.13.0-36-generic ie. any Ubuntu any kernel symptom: tail --follow=name --retry /var/log/syslog Mar 2 11:36:06 c89 kernel: [649937.206226] thunderbolt :07:00.0: resetting error on 0:c. Mar 2 11:36:06 c89 kernel: [649937.206258] thunderbolt :07:00.0: 0:c: hotplug: scanning Mar 2 11:36:06 c89 kernel: [649937.206261] thunderbolt :07:00.0: 0:c: hotplug: no switch found Mar 2 11:36:07 c89 kernel: [649937.685613] thunderbolt :07:00.0: resetting error on 0:c. Mar 2 11:36:07 c89 kernel: [649937.685645] thunderbolt :07:00.0: 0:c: got unplug event for disconnected port, ignoring Present since: - always, but was earlier hidden by more severe i915 bugs Happens when: - many windows, or when opening many such as when restoring a crashed Chromium or LibreOffice session - 2 external monitors via DisplayPort Affect hardware: - Product Name: MacBookPro12,1 lspci -v -s 00:02.0 [21/21] 00:02.0 VGA compatible controller: Intel Corporation Iris Graphics 6100 (rev 09) (prog-if 00 [VGA controller]) Subsystem: Apple Inc. Iris Graphics 6100 Flags: bus master, fast devsel, latency 0, IRQ 50 Memory at c000 (64-bit, non-prefetchable) [size=16M] Memory at b000 (64-bit, prefetchable) [size=256M] I/O ports at 3000 [size=64] [virtual] Expansion ROM at 000c [disabled] [size=128K] Capabilities: Kernel driver in use: i915 Kernel modules: i915 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1510125 Title: occasionally loses external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1510125/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1510125] Re: occasionally loses external monitor
Still happens on 4.3 mainline. It's happened on every kernel I've used on this machine, and feels related to bug #1493989 , though may not be. ** Tags added: kernel-bug-exists-upstream ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1510125 Title: occasionally loses external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1510125/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1510125] Re: occasionally loses external monitor
Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem? Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.3 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-unstable/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1510125 Title: occasionally loses external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1510125/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
