[HP Pavilion p6352fr] Scrolling is jerky after suspend/resume

[Jean-Marc]

Scrolling (mouse wheel, scroll bar, page up/page down keys) is jerky after suspend/resume in documents (OpenDocument, .pdf, ...) or in Firefox since upgrade to 14.04. It would seem there is a high response time between scrolling action and screen display.

WORKAROUND: GRUB_CMDLINE_LINUX="radeon.dpm=0"

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-24-generic 3.13.0-24.46
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC2: eunice 2121 F.... pulseaudio
 /dev/snd/controlC1: eunice 2121 F.... pulseaudio
 /dev/snd/controlC0: eunice 2121 F.... pulseaudio
CurrentDesktop: Unity
Date: Tue Apr 22 17:38:38 2014
HibernationDevice: RESUME=UUID=cc08f480-3f55-4795-913e-9d4e75362876
InstallationDate: Installed on 2013-01-27 (449 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
IwConfig:
 eth0 no wireless extensions.

 lo no wireless extensions.
MachineType: HP-Pavilion WE277AA-ABF p6352fr
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic root=UUID=60a2137c-a8ce-4769-836b-2d1dbdd00d11 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-24-generic N/A
 linux-backports-modules-3.13.0-24-generic N/A
 linux-firmware 1.127
RfKill:

SourcePackage: linux
UpgradeStatus: Upgraded to trusty on 2014-04-18 (4 days ago)
dmi.bios.date: 01/26/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 5.07
dmi.board.name: EVANS
dmi.board.vendor: PEGATRON CORPORATION
dmi.board.version: 1.02
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr5.07:bd01/26/2010:svnHP-Pavilion:pnWE277AA-ABFp6352fr:pvr:rvnPEGATRONCORPORATION:rnEVANS:rvr1.02:cvnHewlett-Packard:ct3:cvrChassisVersion:
dmi.product.name: WE277AA-ABF p6352fr
dmi.sys.vendor: HP-Pavilion

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.15 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.15-rc2-trusty/

[Jean-Marc (m-balthazar)]

Thanks joseph,

But I'm unable to boot on V3.15-rc1 or rc2 kernels.

[penalvch (penalvch)]

Jean Marc, did this problem not occur in a release prior to Trusty?

[Jean-Marc (m-balthazar)]

Hi Christopher,

I've seen similar bug reports in Launchpad with previous releases, but in my case, it's the first time this issue occured.

Thanks

[Jean-Marc (m-balthazar)]

In addition,

I noticed that mouse scrolling and screen display work perfectly when I run a test in "Mouse & Touchpad" (Unity Control Center) even after suspend/resume.

[Jean-Marc (m-balthazar)]

No problem with Lucid, Precise, Quantal, Raring and Saulcy.
I hope this answers your question.

Thanks

[penalvch (penalvch)]

Jean Marc, the next step is to fully commit bisect from Saucy to Trusty, in order to identify the offending commit. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection ?

[Jean-Marc (m-balthazar)]

Hi Christopher,

I'm very far from an expert, but I will try in the next few days.

Thank you

[Jean-Marc (m-balthazar)]

Sorry Christopher but I'm definitely not a Git expert.

However, I tried different kernels of that page: http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D

V3.12.18 kernel works.

The problem appears from V3.13-rc1 kernel.

I hope it could help.

[penalvch (penalvch)]

Jean Marc, now that we have those mainline results, as per https://wiki.ubuntu.com/Kernel/KernelBisection one would want to execute a terminal:
git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git linux
cd linux
git bisect start
git bisect good v3.12.18
git bisect bad v3.13-rc1

this will give a commit which to build a kernel from following the previously mentioned article.

[Jean-Marc (m-balthazar)]

Thanks Christopher,

So, here is, in attachment, the bisect log.
I try to continue.

[Jean-Marc (m-balthazar)]

The first custom kernel (v3.12.0-custom) works.

[penalvch (penalvch)]

Jean Marc, the issue you are reporting is an upstream one. Could you please report this problem through the appropriate channel by following the instructions _verbatim_ at https://wiki.ubuntu.com/Bugs/Upstream/kernel ?

Please provide a direct URL to your e-mail to the mailing list once you have made it so that it may be tracked.

Thank you for your understanding.

[Jean-Marc (m-balthazar)]

Christopher, I made a mistake in the first bisect log. Here is the first part of the new one called "bisect log 2".
Only the first part because I'm stalled at the 7th step.
I can't check if the problem persists because now hard drive don't suspend with that custom kernel.

[Jean-Marc (m-balthazar)]

The problem comes from dpm and Radeon HD4350 graphic card.
Unable to continue the Git process, I fixed the issue by adding a parameter in Grub.

GRUB_CMDLINE_LINUX="radeon.dpm=0"

See "Grub" in attachment.