[Bug 84182] [HSW] i915: Freeze after DPMS

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84182

--- Comment #6 from Harald Judt <h.judt at gmx.at> ---
I encounter the same error on another desktop machine, using the same monitor
connected via a DP->DVI adapter. Backtrace:

kernel: ------------[ cut here ]------------
kernel: WARNING: CPU: 0 PID: 24018 at drivers/gpu/drm/i915/intel_display.c:3313
intel_crtc_wait_for_pending_flips+0xe0/0x133()
kernel: Modules linked in: cfg80211 vboxnetadp(O) vboxnetflt(O) vboxdrv(O)
cpufreq_ondemand snd_hda_codec_realtek snd_hda_codec_hdmi snd_hda_codec_generic
snd_hda_intel snd_hda_controller snd_hda_codec e1000e snd_hwdep
x86_pkg_temp_thermal snd_pcm coretemp sr_mod psmouse microcode cdrom snd_timer
i2c_i801 ptp snd pps_core fan thermal battery processor
kernel: CPU: 0 PID: 24018 Comm: X Tainted: G           O  3.16.0+ #164
kernel: Hardware name: LENOVO 10AHS0NG00/SHARKBAY, BIOS FBKT75AUS 04/01/2014
kernel:  0000000000000000 ffff8801d736fc30 ffffffff81553866 0000000000000000
kernel:  ffff8801d736fc68 ffffffff81039595 ffffffff8138eb1c 0000000000000000
kernel:  ffff8802153f2000 ffff880215387d50 ffff8802150f2800 ffff8801d736fc78
kernel: Call Trace:
kernel:  [<ffffffff81553866>] dump_stack+0x4e/0x7a
kernel:  [<ffffffff81039595>] warn_slowpath_common+0x7a/0x93
kernel:  [<ffffffff8138eb1c>] ? intel_crtc_wait_for_pending_flips+0xe0/0x133
kernel:  [<ffffffff8103964d>] warn_slowpath_null+0x15/0x17
kernel:  [<ffffffff8138eb1c>] intel_crtc_wait_for_pending_flips+0xe0/0x133
kernel:  [<ffffffff8105f2c5>] ? finish_wait+0x60/0x60
kernel:  [<ffffffff813914c0>] intel_crtc_disable_planes+0x2b/0x148
kernel:  [<ffffffff81392114>] haswell_crtc_disable+0x3c/0x237
kernel:  [<ffffffff81392906>] intel_crtc_update_dpms+0x5c/0x6d
kernel:  [<ffffffff81395b76>] intel_connector_dpms+0x43/0x4e
kernel:  [<ffffffff81346739>] drm_mode_obj_set_property_ioctl+0x20f/0x2a9
kernel:  [<ffffffff813467fe>] drm_mode_connector_property_set_ioctl+0x2b/0x2d
kernel:  [<ffffffff813393d3>] drm_ioctl+0x381/0x3f9
kernel:  [<ffffffff813467d3>] ? drm_mode_obj_set_property_ioctl+0x2a9/0x2a9
kernel:  [<ffffffff81113987>] do_vfs_ioctl+0x351/0x415
kernel:  [<ffffffff8111b763>] ? __fget+0x6a/0x74
kernel:  [<ffffffff81113a83>] SyS_ioctl+0x38/0x5f
kernel:  [<ffffffff81559892>] system_call_fastpath+0x16/0x1b
kernel: ---[ end trace 36351689a27913b3 ]---

lspci -v:
00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen
Core Processor Integrated Graphics Controller (rev 06) (prog-if 00 [VGA
controller])
        Subsystem: Lenovo Device 309f
        Flags: bus master, fast devsel, latency 0, IRQ 40
        Memory at f7800000 (64-bit, non-prefetchable) [size=4M]
        Memory at e0000000 (64-bit, prefetchable) [size=256M]
        I/O ports at f000 [size=64]
        Expansion ROM at <unassigned> [disabled]
        Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Capabilities: [d0] Power Management version 2
        Capabilities: [a4] PCI Advanced Features
        Kernel driver in use: i915

kernel: 3.16.0

I have not tried the debug parameter, but will enable it at the next
opportunity.

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