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<head>
<base href="https://bugs.freedesktop.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - compute_config() on unknown output!"
href="https://bugs.freedesktop.org/show_bug.cgi?id=98805">98805</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>compute_config() on unknown output!
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>DRI git
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>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>tvrtko.ursulin@linux.intel.com
</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>Created <span class=""><a href="attachment.cgi?id=128099" name="attach_128099" title="dmesg">attachment 128099</a> <a href="attachment.cgi?id=128099&action=edit" title="dmesg">[details]</a></span>
dmesg
I can get this trace with the current nightly when running the
kms_setmode/basic. Interesting thing is that the HDMI is not connected to
anything on this laptop (eDP only). Full dmesg attached.
[ 1492.820673] [drm:intel_power_well_disable [i915]] disabling always-on
[ 1492.821236] [drm:drm_mode_setcrtc [drm]] [CRTC:31:pipe A]
[ 1492.821619] [drm:drm_mode_setcrtc [drm]] [CRTC:38:pipe B]
[ 1492.822098] [drm:drm_mode_setcrtc [drm]] [CRTC:45:pipe C]
[ 1492.822683] [drm:drm_mode_addfb2 [drm]] [FB:67]
[ 1492.830984] [drm:drm_mode_addfb2 [drm]] [FB:68]
[ 1492.840043] [drm:drm_mode_setcrtc [drm]] [CRTC:31:pipe A]
[ 1492.840059] [drm:drm_mode_setcrtc [drm]] [CONNECTOR:60:HDMI-A-1]
[ 1492.840092] [drm:intel_atomic_check [i915]] [CONNECTOR:60:HDMI-A-1] checking
for sink bpp constrains
[ 1492.840109] [drm:intel_atomic_check [i915]] clamping display bpp (was 36) to
default limit of 24
[ 1492.840112] ------------[ cut here ]------------
[ 1492.840128] WARNING: CPU: 0 PID: 2622 at
drivers/gpu/drm/i915/intel_ddi.c:2059 intel_ddi_compute_config+0xa4/0xe0 [i915]
[ 1492.840130] compute_config() on unknown output!
[ 1492.840132] Modules linked in: netconsole scsi_transport_iscsi fuse vfat fat
x86_pkg_temp_thermal coretemp intel_cstate intel_uncore snd_hda_codec_hdmi
snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core
snd_pcm snd_timer snd intel_rapl_perf mei_me mei intel_pch_thermal serio_raw
soundcore wmi acpi_pad i915 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect
sysimgblt fb_sys_fops r8169 drm mii video
[ 1492.840189] CPU: 0 PID: 2622 Comm: kms_setmode Tainted: G U W
4.9.0-rc5+ #170
[ 1492.840191] Hardware name: LENOVO 80MX/Lenovo E31-80, BIOS DCCN34WW(V2.03)
12/01/2015
[ 1492.840318] ffffc90001377a48 ffffffffa13220bc ffffc90001377a98
0000000000000000
[ 1492.840324] ffffc90001377a88 ffffffffa1059bcb 0000080b00000000
000000000000000a
[ 1492.840330] ffff88016d815000 ffff88015e6e0000 ffff88016025a000
ffff88016a414880
[ 1492.840336] Call Trace:
[ 1492.840341] [<ffffffffa13220bc>] dump_stack+0x4f/0x73
[ 1492.840345] [<ffffffffa1059bcb>] __warn+0xcb/0xf0
[ 1492.840348] [<ffffffffa1059c4f>] warn_slowpath_fmt+0x5f/0x80
[ 1492.840363] [<ffffffffc02e2b24>] intel_ddi_compute_config+0xa4/0xe0 [i915]
[ 1492.840379] [<ffffffffc02c2138>] intel_atomic_check+0x308/0x1120 [i915]
[ 1492.840390] [<ffffffffc017fe98>] drm_atomic_check_only+0x328/0x5b0 [drm]
[ 1492.840398] [<ffffffffc017f8bc>] ?
drm_atomic_set_crtc_for_connector+0xbc/0xf0 [drm]
[ 1492.840406] [<ffffffffc0180138>] drm_atomic_commit+0x18/0x50 [drm]
[ 1492.840414] [<ffffffffc0214a42>] drm_atomic_helper_set_config+0x82/0xe0
[drm_kms_helper]
[ 1492.840423] [<ffffffffc0174b35>] drm_mode_set_config_internal+0x65/0x110
[drm]
[ 1492.840431] [<ffffffffc01754dd>] drm_mode_setcrtc+0x43d/0x530 [drm]
[ 1492.840440] [<ffffffffc0183268>] ? drm_mode_dirtyfb_ioctl+0x78/0x1a0 [drm]
[ 1492.840448] [<ffffffffc016ce69>] drm_ioctl+0x1f9/0x480 [drm]
[ 1492.840456] [<ffffffffc01750a0>] ? drm_mode_getcrtc+0x140/0x140 [drm]
[ 1492.840460] [<ffffffffa11926cd>] ? vma_merge+0x22d/0x340
[ 1492.840463] [<ffffffffa11eefa3>] do_vfs_ioctl+0xa3/0x5e0
[ 1492.840466] [<ffffffffa1346e75>] ? __percpu_counter_add+0x85/0xb0
[ 1492.840468] [<ffffffffa11931f8>] ? do_munmap+0x338/0x460
[ 1492.840471] [<ffffffffa11ef521>] SyS_ioctl+0x41/0x70
[ 1492.840474] [<ffffffffa169fc20>] entry_SYSCALL_64_fastpath+0x13/0x94
[ 1492.840500] ---[ end trace a271b710ff085f92 ]---
[ 1492.840502] ------------[ cut here ]------------
[</pre>
</div>
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