Hello again! I started by testing 4.3.0-040300rc3-generic. This seems to have fixed the hang, but I still see log lines that seem problematic:
Oct 4 09:18:41 mart6985-laptop kernel: [ 56.385682] acpi PNP0401:00: Already enumerated Oct 4 09:18:41 mart6985-laptop kernel: [ 56.389467] acpi device:40: Cannot transition to power state D3hot for parent in (unknown) Oct 4 09:18:50 mart6985-laptop kernel: [ 65.823223] ACPI Error: Index value 0x0000000000000083 overflows field width 0x7 (20150818/exfldio-341) Oct 4 09:18:50 mart6985-laptop kernel: [ 65.823228] ACPI Error: Method parse/execution failed [\NEVT] (Node ffff88040e0cb258), AE_AML_REGISTER_LIMIT (20150818/psparse-542) Oct 4 09:18:50 mart6985-laptop kernel: [ 65.823233] ACPI Error: Method parse/execution failed [\_SB.PCI0.LPCB.ECDV._Q66] (Node ffff88040e0c9b90), AE_AML_REGISTER_LIMIT (20150818/psparse-542) Should I consider this fixed or keep going until I don't see the ACPI error? I also noted that closing the laptop lid while docked caused the very same following ACPI error about power state transitions -- should I be reporting this as a separate issue? It doesn't seem to hurt anything on my system. Oct 4 09:20:00 mart6985-laptop systemd[1]: Stopping User Manager for UID 112... Oct 4 09:20:00 mart6985-laptop systemd[1079]: Stopped target Default. Oct 4 09:20:00 mart6985-laptop systemd[1079]: Stopped target Basic System. Oct 4 09:20:00 mart6985-laptop systemd[1079]: Stopped target Timers. Oct 4 09:20:00 mart6985-laptop systemd[1079]: Stopped target Sockets. Oct 4 09:20:00 mart6985-laptop systemd[1079]: Stopped target Paths. Oct 4 09:20:00 mart6985-laptop systemd[1079]: Reached target Shutdown. Oct 4 09:20:00 mart6985-laptop systemd[1079]: Starting Exit the Session... Oct 4 09:20:00 mart6985-laptop systemd[1079]: Received SIGRTMIN+24 from PID 3029 (kill). Oct 4 09:20:00 mart6985-laptop systemd[1]: Stopped User Manager for UID 112. Oct 4 09:20:00 mart6985-laptop systemd[1]: Removed slice user-112.slice. Oct 4 09:20:06 mart6985-laptop avahi-daemon[864]: Invalid response packet from host 192.168.1.16. Oct 4 09:20:14 mart6985-laptop kernel: [ 149.531979] pci_bus 0000:01: Allocating resources Oct 4 09:20:14 mart6985-laptop kernel: [ 149.532016] pci_bus 0000:02: Allocating resources Oct 4 09:20:14 mart6985-laptop kernel: [ 149.532148] pci_bus 0000:03: Allocating resources Oct 4 09:20:14 mart6985-laptop kernel: [ 149.534029] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment Oct 4 09:20:14 mart6985-laptop kernel: [ 149.540179] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment Oct 4 09:20:14 mart6985-laptop kernel: [ 149.540254] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment Oct 4 09:20:14 mart6985-laptop kernel: [ 149.540369] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment Oct 4 09:20:14 mart6985-laptop kernel: [ 149.540937] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment Oct 4 09:20:14 mart6985-laptop kernel: [ 149.540975] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment Oct 4 09:20:14 mart6985-laptop kernel: [ 149.541151] acpi device:40: Cannot transition to power state D3hot for parent in (unknown) Oct 4 09:20:14 mart6985-laptop kernel: [ 149.541342] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment Oct 4 09:20:14 mart6985-laptop kernel: [ 149.541645] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment ** Tags added: kernel-fixed-upstream kernel-fixed-upstream-4.3-rc3 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1501993 Title: drivers/gpu/drm/i915/intel_display.c:12326 check_crtc_state+0x2c5/0x440 [i915]() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1501993/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
