[Bug 74200] New: Suspend fails for i915 with [drm] stuck on render ring

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=74200

          Priority: medium
            Bug ID: 74200
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: Suspend fails for i915 with [drm] stuck on render ring
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: jcnengel at googlemail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Suspend fails on Sandybridge using kernel 3.13.0.
dmesg says

[ 2242.966350] PM: Syncing filesystems ... done.
[ 2243.386166] PM: Preparing system for mem sleep
[ 2243.584624] Freezing user space processes ... (elapsed 0.001 seconds) done.
[ 2243.586486] Freezing remaining freezable tasks ... (elapsed 0.001 seconds)
done.
[ 2243.587647] PM: Entering mem sleep
[ 2243.587697] Suspending console(s) (use no_console_suspend to debug)
[ 2243.749810] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[ 2243.750125] sd 0:0:0:0: [sda] Stopping disk
[ 2249.095765] [drm] stuck on render ring
[ 2249.095803] i915 0000:00:02.0: GEM idle failed, resume might fail
[ 2249.095807] pci_pm_suspend(): i915_pm_suspend+0x0/0x80 returns -11
[ 2249.095810] dpm_run_callback(): pci_pm_suspend+0x0/0x140 returns -11
[ 2249.095814] PM: Device 0000:00:02.0 failed to suspend async: error -11
[ 2249.095820] PM: Some devices failed to suspend, or early wake event detected

lspci -vv says

00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core
Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA
controller])
        Subsystem: Lenovo Device 21d2
        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 40
        Region 0: Memory at f0000000 (64-bit, non-prefetchable) [size=4M]
        Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
        Region 4: I/O ports at 4000 [size=64]
        Expansion ROM at <unassigned> [disabled]
        Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
                Address: fee0f00c  Data: 4181
        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


If any additional logs are required, please let me know.

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