Vivid is now based on the v3.18.2 upstream stable kernel, but we'll be rebasing
to v3.18.3 shortly. We'll also be rebsaing our
unstable branch to v3.19-rc5 and get that uploaded to our team PPA soon.3.18.2
updates and will soon be rebased to 3.19.
Can you test the latest Vivid kernel and see if this bug is now fixed?
** Also affects: linux (Ubuntu Vivid)
Importance: Medium
Status: Confirmed
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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:
Confirmed
Status in linux source package in Vivid:
Confirmed
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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