<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 --- - [BDW Regression]HDMI hotplut cause CallTrace"
href="https://bugs.freedesktop.org/show_bug.cgi?id=84320">84320</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>[BDW Regression]HDMI hotplut cause CallTrace
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>major
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>lei.a.liu@intel.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=106842" name="attach_106842" title="dmesg">attachment 106842</a> <a href="attachment.cgi?id=106842&action=edit" title="dmesg">[details]</a></span>
dmesg
==System Environment==
--------------------------
Regression: Yes.
Non-working platforms: BSW
==kernel==
--------------------------
-nightly: 0f7cc12c94e3a3033a46ce41bed55e8b6b35561b (fails)
drm-intel-nightly: 2014y-09m-24d-19h-04m-51s UTC integration manifest
-queued: 7ca5a41f4da201371e131fc0641033652f76bf30 (fails)
drm/i915: Avoid re-configure panel on every PSR re-enable.
-fixes: c84db77010877da6c5da119868ed54c43d59e726 (works)
drm/i915/hdmi: fix hdmi audio state readout
==Bug detailed description==
-----------------------------
HDMI hotplug cause Call Trace:
[ 172.922325] [drm:ironlake_update_primary_plane] Writing base 00881000
00000000 0 0 7680
[ 173.021523] ------------[ cut here ]------------
[ 173.021576] WARNING: CPU: 0 PID: 782 at drivers/gpu/drm/drm_irq.c:1089
drm_wait_one_vblank+0x113/0x171 [drm]()
[ 173.021646] vblank wait timed out on crtc 1
[ 173.021676] Modules linked in: ip6table_filter ip6_tables ipv6
iptable_filter ip_tables x_tables snd_hda_codec_hdmi pcspkr snd_hda_intel
i2c_i801 snd_hda_controller snd_hda_codec dm_mod snd_hwdep lpc_ich mfd_core
snd_pcm snd_timer snd soundcore battery parport_pc parport ac acpi_cpufreq i915
button video drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea
[ 173.021971] CPU: 0 PID: 782 Comm: kworker/0:1 Not tainted
3.17.0-rc5_drm-intel-testing_e0db46_20140920_+ #93
[ 173.022060] Workqueue: events i915_hotplug_work_func [i915]
[ 173.022103] 0000000000000009 ffff8801490a7838 ffffffff81833417
0000000000000000
[ 173.022164] ffff8801490a7888 ffff8801490a7878 ffffffff8103fb88
ffff880142a84908
[ 173.022224] ffffffffa00120bd 0000000000000001 ffff880149a79000
0000000000000000
[ 173.022283] Call Trace:
[ 173.022305] [<ffffffff81833417>] dump_stack+0x46/0x58
[ 173.022344] [<ffffffff8103fb88>] warn_slowpath_common+0x81/0x9b
[ 173.022396] [<ffffffffa00120bd>] ? drm_wait_one_vblank+0x113/0x171 [drm]
[ 173.022444] [<ffffffff8103fc45>] warn_slowpath_fmt+0x46/0x48
[ 173.022487] [<ffffffff8106fd5a>] ? finish_wait+0x5c/0x65
[ 173.022543] [<ffffffffa00120bd>] drm_wait_one_vblank+0x113/0x171 [drm]
[ 173.022594] [<ffffffff81070194>] ? __init_waitqueue_head+0x50/0x50
[ 173.022677] [<ffffffffa00dc821>] intel_enable_primary_hw_plane+0x7a/0x83
[i915]
[ 173.022792] [<ffffffffa00e289b>] intel_crtc_enable_planes+0x32/0xdd [i915]
[ 173.022887] [<ffffffffa00e4c3b>] haswell_crtc_enable+0x864/0x8a5 [i915]
[ 173.022956] [<ffffffffa00e0868>] __intel_set_mode+0x1149/0x124d [i915]
[ 173.023020] [<ffffffffa00e6f70>] intel_set_mode+0x16/0x2f [i915]
[ 173.023082] [<ffffffffa00e7be3>] intel_crtc_set_config+0x76c/0xaba [i915]
[ 173.023145] [<ffffffffa0025186>] ? drm_modeset_lock+0x5c/0xbc [drm]
[ 173.023202] [<ffffffffa0025848>] ? __drm_modeset_lock_all+0x76/0x100 [drm]
[ 173.023263] [<ffffffffa0018de8>] drm_mode_set_config_internal+0x57/0xe4
[drm]
[ 173.023320] [<ffffffffa006c0f5>] restore_fbdev_mode+0xb7/0xd5
[drm_kms_helper]
[ 173.023377] [<ffffffffa006c1cd>]
drm_fb_helper_restore_fbdev_mode_unlocked+0x27/0x3c [drm_kms_helper]
[ 173.023447] [<ffffffffa006d405>] drm_fb_helper_set_par+0x44/0x64
[drm_kms_helper]
[ 173.023519] [<ffffffffa006d4d2>] drm_fb_helper_hotplug_event+0xad/0xb4
[drm_kms_helper]
[ 173.023609] [<ffffffffa00f1f69>] intel_fbdev_output_poll_changed+0x1e/0x20
[i915]
[ 173.023703] [<ffffffffa0066d40>] drm_kms_helper_hotplug_event+0x28/0x2c
[drm_kms_helper]
[ 173.023815] [<ffffffffa00bd830>] i915_hotplug_work_func+0x27c/0x292 [i915]
[ 173.023867] [<ffffffff81053be2>] process_one_work+0x224/0x3fb
[ 173.023910] [<ffffffff81053b51>] ? process_one_work+0x193/0x3fb
[ 173.023956] [<ffffffff8105404c>] worker_thread+0x264/0x363
[ 173.023997] [<ffffffff81053de8>] ? process_scheduled_works+0x2f/0x2f
[ 173.024045] [<ffffffff8105820e>] kthread+0xed/0xf5
[ 173.024083] [<ffffffff81058121>] ? __init_kthread_worker+0x5a/0x5a
[ 173.024128] [<ffffffff8183a96c>] ret_from_fork+0x7c/0xb0
==Reproduce steps==
----------------------------
1. Plugin and unplug HDMI monitor
2. Check dmesg</pre>
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