<html>
<head>
<base href="https://bugs.freedesktop.org/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - intel_get_pipe_from_connector warning during suspend"
href="https://bugs.freedesktop.org/show_bug.cgi?id=71978">71978</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>intel_get_pipe_from_connector warning during suspend
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>tod.jackson@gmail.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=89729" name="attach_89729" title="full dmesg after pm-suspend">attachment 89729</a> <a href="attachment.cgi?id=89729&action=edit" title="full dmesg after pm-suspend">[details]</a></span>
full dmesg after pm-suspend
Hi there,
Everything seems to be in working order despite, but I thought I'd mention a
kernel warning I just saw when testing pm-suspend on 3.13-rc1.
[10758.966179] ------------[ cut here ]------------
[10758.966189] WARNING: CPU: 0 PID: 13698 at
drivers/gpu/drm/i915/intel_display.c:9948
intel_get_pipe_from_connector+0x4c/0x50()
[10758.966219] Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops
videobuf2_core videodev brcmsmac nouveau coretemp kvm_intel cordic brcmutil kvm
snd_hda_codec_hdmi ttm dell_wmi snd_hda_codec_realtek bcma mxm_wmi wmi atl1c
intel_ips snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_page_alloc
snd_timer snd
[10758.966223] CPU: 0 PID: 13698 Comm: kworker/u16:13 Not tainted 3.13.0-rc1 #1
[10758.966224] Hardware name: Alienware M11x R2/M11x R2, BIOS A04 11/23/2010
[10758.966231] Workqueue: events_unbound async_run_entry_fn
[10758.966234] 0000000000000009 ffff88016e9bfaf8 ffffffff8166c685
0000000000000000
[10758.966236] 0000000000000000 ffff88016e9bfb38 ffffffff81044127
ffff88016e9bfb28
[10758.966238] ffff8801729a1800 ffff8800770c8000 00000000000c7204
ffff8801729a1800
[10758.966239] Call Trace:
[10758.966247] [<ffffffff8166c685>] dump_stack+0x46/0x58
[10758.966252] [<ffffffff81044127>] warn_slowpath_common+0x87/0xb0
[10758.966255] [<ffffffff81044165>] warn_slowpath_null+0x15/0x20
[10758.966258] [<ffffffff8139b43c>] intel_get_pipe_from_connector+0x4c/0x50
[10758.966263] [<ffffffff813b50bb>] intel_panel_disable_backlight+0x2b/0x190
[10758.966266] [<ffffffff813a037a>] intel_disable_lvds+0x5a/0x160
[10758.966269] [<ffffffff81390dbe>] ironlake_crtc_disable+0x1ae/0x920
[10758.966273] [<ffffffff813445dd>] ? drm_irq_uninstall+0xdd/0x1c0
[10758.966278] [<ffffffff8135b4f2>] i915_drm_freeze+0xd2/0x150
[10758.966280] [<ffffffff8135ba71>] i915_pm_suspend+0x41/0xa0
[10758.966286] [<ffffffff812a26c2>] pci_pm_suspend+0x72/0x140
[10758.966294] [<ffffffff813e79d5>] ? __pm_runtime_barrier+0x15/0x130
[10758.966297] [<ffffffff812a2650>] ? pci_pm_freeze+0xd0/0xd0
[10758.966308] [<ffffffff813e49e1>] dpm_run_callback+0x41/0x80
[10758.966325] [<ffffffff813e4b0b>] __device_suspend+0xeb/0x260
[10758.966333] [<ffffffff810716a0>] ? try_to_wake_up+0x100/0x290
[10758.966342] [<ffffffff813e552a>] async_suspend+0x1a/0xa0
[10758.966344] [<ffffffff8106a566>] async_run_entry_fn+0x36/0x130
[10758.966353] [<ffffffff8105dc9f>] process_one_work+0x17f/0x420
[10758.966358] [<ffffffff8105e389>] worker_thread+0x119/0x370
[10758.966363] [<ffffffff8105e270>] ? rescuer_thread+0x2f0/0x2f0
[10758.966368] [<ffffffff81064bf4>] kthread+0xc4/0xe0
[10758.966373] [<ffffffff81064b30>] ? flush_kthread_worker+0x70/0x70
[10758.966382] [<ffffffff8167b4bc>] ret_from_fork+0x7c/0xb0
[10758.966384] [<ffffffff81064b30>] ? flush_kthread_worker+0x70/0x70
[10758.966386] ---[ end trace 5a95337b2336b1af ]---
I attached the full dmesg.</pre>
</div>
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