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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - GPU HANG - horizontal lines on screen"
href="https://bugs.freedesktop.org/show_bug.cgi?id=92847">92847</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>GPU HANG - horizontal lines on screen
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>XOrg git
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86 (IA32)
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>leon@fairtragen.de
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>During normal operation about once per 30min my screen only shows horizontal
lines. After about 10sec I can continue to use the system normally..
The bug does not occur when I choose older kernel (3.19.8-031908-generic) with
grub.
my hardware (yes, quite old..)
LG R400-EPRAG
running Kubuntu 15.10 with kernel: 4.2.0-16-generic
except from syslog:
Nov 5 11:34:09 trage-kubuntu-R400-EPRAG smartd[709]: Device: /dev/sda [SAT],
SMART Usage Attribute: 190 Airflow_Temperature_Cel changed from 60 to 62
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.000067] [drm] stuck on
render ring
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001344] [drm] GPU HANG:
ecode 3:0:0x0271ffc0, in Xorg [1249], reason: Ring hung, action: reset
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001434] ------------[
cut here ]------------
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001479] WARNING: CPU: 1
PID: 13646 at
/build/linux-hXawIp/linux-4.2.0/drivers/gpu/drm/i915/intel_display.c:3294
intel_crtc_wait_for_pending_flips+0x17c/0x220 [i915]()
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001482] WARN_ON(ret)
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001484] Modules linked
in: nls_iso8859_1 hid_generic usbhid hid drbg ansi_cprng ctr ccm nvram msr
pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) binfmt_misc arc4
ath5k snd_hda_codec_hdmi input_leds ath pcspkr joydev mac80211
snd_hda_codec_realtek serio_raw snd_hda_codec_generic cfg80211 snd_hda_intel
snd_hda_codec snd_hda_core snd_hwdep snd_pcm lpc_ich snd_seq_midi
snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device shpchp snd_timer snd
soundcore mac_hid coretemp parport_pc ppdev lp parport autofs4 uas usb_storage
i915 ahci psmouse i2c_algo_bit libahci pata_acpi drm_kms_helper drm sky2 wmi
video
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001550] CPU: 1 PID:
13646 Comm: kworker/u4:0 Tainted: G W OE 4.2.0-16-generic #19-Ubuntu
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001553] Hardware name:
LG Electronics R400-EPRAG/LHOTSE , BIOS LHONSF04 03/22/2007
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001578] Workqueue:
i915-hangcheck i915_hangcheck_elapsed [i915]
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001582] c1a629a7
4ff65f30 00000000 d048bd48 c175dae1 d048bd88 d048bd78 c106a687
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001589] f8bd78e9
d048bda8 0000354e f8bc9a44 00000cde f8b6c22c f8b6c22c f5410000
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001595] c006fc34
00000001 d048bd94 c106a6fe 00000009 d048bd88 f8bd78e9 d048bda8
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001602] Call Trace:
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001610] [<c175dae1>]
dump_stack+0x41/0x52
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001616] [<c106a687>]
warn_slowpath_common+0x87/0xc0
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001643] [<f8b6c22c>] ?
intel_crtc_wait_for_pending_flips+0x17c/0x220 [i915]
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001671] [<f8b6c22c>] ?
intel_crtc_wait_for_pending_flips+0x17c/0x220 [i915]
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001674] [<c106a6fe>]
warn_slowpath_fmt+0x3e/0x60
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001701] [<f8b6c22c>]
intel_crtc_wait_for_pending_flips+0x17c/0x220 [i915]
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001730] [<f891ffd4>] ?
drm_modeset_lock_all_crtcs+0x84/0x90 [drm]
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001757] [<f8b6d5f4>]
intel_crtc_disable_planes+0x34/0xf0 [i915]
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001784] [<f8b6d75a>]
intel_prepare_reset+0x6a/0x80 [i915]
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001810] [<f8b3f7b7>]
i915_handle_error+0x147/0x6e0 [i915]
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001815] [<c10be1bd>] ?
log_store+0x1cd/0x210
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001820] [<c10bfa91>] ?
vprintk_default+0x41/0x60
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001843] [<f8b3ffd3>]
i915_hangcheck_elapsed+0x233/0x410 [i915]
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001849] [<c10810b5>]
process_one_work+0x155/0x3e0
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001852] [<c1081377>]
worker_thread+0x37/0x490
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001855] [<c1081340>] ?
process_one_work+0x3e0/0x3e0
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001859] [<c1086a56>]
kthread+0xa6/0xc0
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001864] [<c1763741>]
ret_from_kernel_thread+0x21/0x30
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001868] [<c10869b0>] ?
kthread_create_on_node+0x170/0x170
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.001871] ---[ end trace
a79e4baed554a835 ]---
Nov 5 11:38:36 trage-kubuntu-R400-EPRAG kernel: [33458.041241] drm/i915:
Resetting chip after gpu hang</pre>
</div>
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