eDP powered off while attempting aux channel communication
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Linux |
Fix Released
|
Undecided
|
Unassigned | ||
intel |
Fix Released
|
Undecided
|
Rodrigo-vivi | ||
linux (Ubuntu) |
Fix Released
|
Medium
|
Timo Aaltonen |
Bug Description
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835743] ------------[ cut here ]------------
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835747] WARNING: at /var/lib/
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835748] Hardware name:
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835748] eDP powered off while attempting aux channel communication.
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835748] Modules linked in: rtbth(O) ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs reiserfs ext2 rt2800pci rt2800lib crc_ccitt rt2x00pci rt2x00lib mac80211 cfg80211 eeprom_93cx6 nls_iso8859_1 snd_hda_
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835768] Pid: 5296, comm: kworker/u:18 Tainted: G W O 3.5.0-30-generic #51~precise1-Ubuntu
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835768] Call Trace:
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835769] [<ffffffff81052
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835770] [<ffffffff81052
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835772] [<ffffffffa00c3
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835777] [<ffffffffa00c3
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835782] [<ffffffffa00c4
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835787] [<ffffffffa00c4
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835792] [<ffffffffa00c6
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835797] [<ffffffffa00c6
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835802] [<ffffffffa00c6
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835807] [<ffffffffa008f
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835811] [<ffffffff81071
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835812] [<ffffffff81072
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835813] [<ffffffff81072
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835814] [<ffffffff81077
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835815] [<ffffffff816a6
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835816] [<ffffffff81077
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835817] [<ffffffff816a6
May 22 07:20:11 ubuntu-desktop kernel: [ 3687.835818] ---[ end trace 6b87f9ae8a9261a4 ]---
As you might expect, the intel-i915-
Changed in intel: | |
assignee: | nobody → Rodrigo-vivi (rodrigo-vivi) |
tags: | added: blocks-hwcert-enablement |
From the engineer debugging the case:
I noted there is one thing interesting and may be useful for your 3.9.3 backporting:
the i915 Call Trace message will appear when the system is:
1. 3.5.0-32(default) + 3.8.6 i915 backport dkms
2. 3.9.3
the i915 Call Trace message won't appear when the system is:
1. 3.5.0-32(default) without 3.8.6 i915 backport dkms
2. 3.10-rc3
only "3.5.0-32(default) + 3.8.6 i915 backport dkms" raised this bug,
so I think the Call Trace message in comment 2 may not directly raise this bug