** Tags added: latest-bios-3.24 regression-release
** Tags added: kernel-fixed-upstream kernel-fixed-upstream-3.18.2
** Changed in: linux (Ubuntu Vivid)
Status: Confirmed => Triaged
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https://bugs.launchpad.net/bugs/1410940
Title:
display driver / video issues in 3.18 (regression from 3.16)
Status in linux package in Ubuntu:
Triaged
Status in linux source package in Vivid:
Triaged
Bug description:
After upgrading to the 3.18 kernel in vivid (currently with
initrd.img-3.18.0-8-generic), hangouts are behaving badly for me. I
suspect this is due to video device performance but that's just a
guess.
Things I've noticed:
* hangouts have horizontal black bars / gitchy video even when just
displaying my webcam (before others have joined)
* mplayer does not show video, but just a black box
mplayer /usr/share/example-content/Ubuntu_Free_Culture_Showcase/How\
fast.ogg
This does not happen in 3.16.
Specifically, I see this:
GOOD: linux-image-3.16.0-28-generic: /boot/vmlinuz-3.16.0-28-generic
BAD: linux-image-3.18.0-8-generic: /boot/vmlinuz-3.18.0-8-generic
---
ApportVersion: 2.15.1-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: smoser 2590 F.... pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 15.04
EcryptfsInUse: Yes
InstallationDate: Installed on 2015-01-02 (12 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20150101)
MachineType: LENOVO 7417CTO
Package: linux (not installed)
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.18.0-8-generic
root=UUID=715c6da7-c111-4842-868b-7778623ead7c ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.18.0-8.9-generic 3.18.1
RelatedPackageVersions:
linux-restricted-modules-3.18.0-8-generic N/A
linux-backports-modules-3.18.0-8-generic N/A
linux-firmware 1.140
Tags: vivid
Uname: Linux 3.18.0-8-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 10/17/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 7UET94WW (3.24 )
dmi.board.name: 7417CTO
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:bvr7UET94WW(3.24):bd10/17/2012:svnLENOVO:pn7417CTO:pvrThinkPadT400:rvnLENOVO:rn7417CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 7417CTO
dmi.product.version: ThinkPad T400
dmi.sys.vendor: LENOVO
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