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Message #19199
[Bug 1211394] Re: ThinkPad X201 external screen might blank when connected over displayport.
This issue appears to be an upstream bug, since you tested the latest
upstream kernel. Would it be possible for you to open an upstream bug
report[0]? That will allow the upstream Developers to examine the issue,
and may provide a quicker resolution to the bug.
Please follow the instructions on the wiki page[0]. The first step is to
email the appropriate mailing list. If no response is received, then a
bug may be opened on bugzilla.kernel.org.
Once this bug is reported upstream, please add the tag: 'kernel-bug-
reported-upstream'.
[0] https://wiki.ubuntu.com/Bugs/Upstream/kernel
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https://bugs.launchpad.net/bugs/1211394
Title:
ThinkPad X201 external screen might blank when connected over
displayport.
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
[ 28.560855] Pid: 1422, comm: modprobe Tainted: PF O 3.8.0-27-generic #40-Ubuntu
[ 28.560855] Call Trace:
[ 28.560861] [<ffffffff810587ef>] warn_slowpath_common+0x7f/0xc0
[ 28.560863] [<ffffffff810588ec>] warn_slowpath_fmt+0x4c/0x50
[ 28.560875] [<ffffffffa07bd182>] intel_wait_for_pipe_off+0xe2/0x1a0 [i915]
[ 28.560886] [<ffffffffa07bd376>] intel_disable_pipe+0x136/0x170 [i915]
I'm having this issue on both precise and raring on ThinkPad X201.
This issue only appears when external display attached to DisplayPort.
The behavior is consistent with stock/mainline kernel with stock or
intel linuxgraphics drivers (3.8.0-26-generic, 3.8.0-27-generic,
3.8.0-27-generic with intel linux-graphics 2013Q2,
3.10.0-997-generic,3.10.0-997-generic with intel linux-graphics
2013Q2).
External display works perfectly on VGA port.
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: linux-image-3.8.0-27-generic 3.8.0-27.40
ProcVersionSignature: Ubuntu 3.8.0-27.40-generic 3.8.13.4
Uname: Linux 3.8.0-27-generic x86_64
NonfreeKernelModules: zfs zunicode zavl zcommon znvpair
ApportVersion: 2.9.2-0ubuntu8.3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: coyang 5192 F.... pulseaudio
Date: Tue Aug 13 00:09:38 2013
HibernationDevice: RESUME=UUID=a5e3bbe9-32c8-45b5-bb80-7992a11ee933
InstallationDate: Installed on 2010-11-08 (1008 days ago)
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
MachineType: LENOVO 3680N48
MarkForUpload: True
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: boot=zfs bootfs=rpool/ROOT/raring clocksource=acpi_pm noapic usbcore.autosuspend=1 nmi_watchdog=0 processor.ignore_ppc=1 enable_mtrr_cleanup mtrr_spare_reg_nr=1 pciehp.pciehp_force=1 i915.semaphores=1
PulseList:
Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-3.8.0-27-generic N/A
linux-backports-modules-3.8.0-27-generic N/A
linux-firmware 1.106
SourcePackage: linux
UpgradeStatus: Upgraded to raring on 2011-10-10 (672 days ago)
WifiSyslog:
Aug 13 00:09:32 coyang kernel: [ 905.922614] type=1400 audit(1376323772.402:88): apparmor="ALLOWED" operation="open" parent=10533 profile="/opt/google/chrome/google-chrome//chrome_sandbox" name="/sys/devices/system/cpu/online" pid=10537 comm="nacl_helper_boo" requested_mask="r" denied_mask="r" fsuid=1001 ouid=0
Aug 13 00:14:41 coyang NetworkManager[3222]: <warn> nl_recvmsgs() error: (-33) Dump inconsistency detected, interrupted
dmi.bios.date: 10/11/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET70WW (1.40 )
dmi.board.name: 3680N48
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6QET70WW(1.40):bd10/11/2012:svnLENOVO:pn3680N48:pvrThinkPadX201:rvnLENOVO:rn3680N48:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 3680N48
dmi.product.version: ThinkPad X201
dmi.sys.vendor: LENOVO
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