Pinghao Qi, just to clarify, were you testing kernel 4.1-rc1 or 4.0.x?
** Tags added: latest-bios-1.12
** Description changed:
My laptop shows a black screen when resumes from suspend. I'm unable to
log in with ctrl-alt-f1 then ctrl-alt-f7. I'm able to control the
keyboard backlight, the LED on the power button still looks like the way
the laptop is in suspend. I'm only able to log in by pressing the power
button and power off.
This issue only happens when I close the lid and leave the computer for
a long time. If I close the lid and open it in around 1 minute, it
resumes just fine. I have to press the suspend button in the drop down
menu to suspend the laptop first, and then close the lid. In that case,
the laptop resumes without error. I've set in the power settings to let
the laptop do nothing when lid is closed, and that didn't change the
problem.
- The laptop only has an Intel integrated graphics card. I've tried using the
newest i915 driver from o1.org and the same problem persists. This same problem
is observed in clean installs of 14.04LTS, 14.10 and 15.04. I updated to 15.04
from 14.10 using the built-in updater.
- The laptop runs the newest version of BIOS from Lenovo.
+ I've tried using the newest i915 driver from o1.org and the same problem
+ persists. This same problem is observed in clean installs of 14.04LTS,
+ 14.10 and 15.04. I updated to 15.04 from 14.10 using the built-in
+ updater.
+
+ WORKAROUND: In BIOS, disable Intel Rapid Start Technology.
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: linux-image-3.19.0-15-generic 3.19.0-15.15
ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
Uname: Linux 3.19.0-15-generic x86_64
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: pinghao 3446 F.... pulseaudio
/dev/snd/controlC0: pinghao 3446 F.... pulseaudio
CurrentDesktop: Unity
Date: Mon Apr 27 23:44:32 2015
HibernationDevice: RESUME=UUID=72731580-3c1d-4d92-8d3d-c07fd1031447
InstallationDate: Installed on 2015-04-16 (11 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
MachineType: LENOVO 20BX001LUS
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-15-generic
root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.19.0-15-generic N/A
linux-backports-modules-3.19.0-15-generic N/A
linux-firmware 1.143
SourcePackage: linux
UpgradeStatus: Upgraded to vivid on 2015-04-24 (3 days ago)
dmi.bios.date: 03/10/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: JBET47WW (1.12 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20BX001LUS
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50510 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias:
dmi:bvnLENOVO:bvrJBET47WW(1.12):bd03/10/2015:svnLENOVO:pn20BX001LUS:pvrThinkPadT450s:rvnLENOVO:rn20BX001LUS:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.name: 20BX001LUS
dmi.product.version: ThinkPad T450s
dmi.sys.vendor: LENOVO
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1449357
Title:
Thinkpad T450s unable to resume after suspended for a long time
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