[Bug 113741] New: regression: display becomes "disconnected" while suspended
bugzilla-daemon at bugzilla.kernel.org
bugzilla-daemon at bugzilla.kernel.org
Sat Mar 5 02:43:13 UTC 2016
https://bugzilla.kernel.org/show_bug.cgi?id=113741
Bug ID: 113741
Summary: regression: display becomes "disconnected" while
suspended
Product: Drivers
Version: 2.5
Kernel Version: 4.4.3-300.fc23.x86_64
Hardware: All
OS: Linux
Tree: Fedora
Status: NEW
Severity: high
Priority: P1
Component: Video(DRI - Intel)
Assignee: intel-gfx-bugs at lists.freedesktop.org
Reporter: fry.kun at gmail.com
CC: intel-gfx-bugs at lists.freedesktop.org
Regression: No
My laptop is connected to 2 external monitors. Soon after screen is locked
(xscreensaver), the monitors go into suspend mode.
As of 4.4.x updates, this causes window manager (xfwm4-4.12.3-2.fc23.x86_64) to
detect one of the monitors as "disconnected" and all windows are moved to the
primary monitor.
When unlocked, both monitors are displaying everything, but windows had been
moved already and don't snap back to the 2nd monitor.
Also tried on 4.4.2-301.fc23.x86_64
Issue was not present on 4.3.x and earlier kernels (same setup, booted to
4.3.5-300.fc23.x86_64 does not have the problem)
Note, probably irrelevant, but video hardware is dual:
00:02.0 VGA compatible controller [0300]: Intel Corporation 4th Gen Core
Processor Integrated Graphics Controller [8086:0416] (rev 06) (prog-if 00 [VGA
controller])
Subsystem: CLEVO/KAPOK Computer Device [1558:5281]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 35
Region 0: Memory at f7400000 (64-bit, non-prefetchable) [size=4M]
Region 2: Memory at d0000000 (64-bit, prefetchable) [size=256M]
Region 4: I/O ports at f000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Address: fee00018 Data: 0000
Capabilities: [d0] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [a4] PCI Advanced Features
AFCap: TP+ FLR+
AFCtrl: FLR-
AFStatus: TP-
Kernel driver in use: i915
Kernel modules: i915
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GK104M [GeForce
GTX 870M] [10de:1199] (rev ff) (prog-if ff)
!!! Unknown header type 7f
Kernel modules: nouveau, nvidia
Using bumblebee to enable nvidia card when necessary; usually it's left
disabled.
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