Public bug reported:
Similar to Bugs #1239186, #1290400
AMD hybrid video. Fglrx drivers are not installed, so it's effectively
an Intel HD4000 Display adapter.
Displayport monitor randomly blacks out, usually during load (playing
videos, audio, or both).
Turning on debugging in the drm module, I see:
[ 227.074336] [drm:ivb_err_int_handler], Pipe A FIFO underrun
[ 227.074350] [drm:cpt_serr_int_handler], PCH transcoder A FIFO underrun
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8
ProcVersionSignature: Ubuntu 3.13.0-20.42-lowlatency 3.13.7
Uname: Linux 3.13.0-20-lowlatency x86_64
ApportVersion: 2.13.3-0ubuntu1
Architecture: amd64
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: GNOME
Date: Sat Mar 29 19:38:46 2014
DistUpgraded: 2014-03-29 11:45:02,286 DEBUG enabling apt cron job
DistroCodename: trusty
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev
09) (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Device [103c:1851]
Advanced Micro Devices, Inc. [AMD/ATI] Chelsea LP [Radeon HD 7730M]
[1002:682f] (rev ff) (prog-if ff)
InstallationDate: Installed on 2013-11-28 (121 days ago)
InstallationMedia: Ubuntu-GNOME 13.10 "Saucy Salamander" - Release amd64
(20131017)
MachineType: Hewlett-Packard HP ENVY 15 Notebook PC
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-20-lowlatency
root=UUID=fdeb843b-c621-4136-91e3-f53653f885c2 ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: Upgraded to trusty on 2014-03-29 (0 days ago)
XorgConf: # NOXORGCONFEXISTED: No X.org configuration file existed when this
backup was created.
dmi.bios.date: 08/15/2012
dmi.bios.vendor: Insyde
dmi.bios.version: F.08
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 1851
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 59.13
dmi.chassis.asset.tag: CNU23191JC
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnInsyde:bvrF.08:bd08/15/2012:svnHewlett-Packard:pnHPENVY15NotebookPC:pvr078D110000204810000640100:rvnHewlett-Packard:rn1851:rvr59.13:cvnHewlett-Packard:ct10:cvrChassisVersion:
dmi.product.name: HP ENVY 15 Notebook PC
dmi.product.version: 078D110000204810000640100
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz N/A
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.52-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0-1ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.15.0-1ubuntu7
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Sat Mar 29 19:25:10 2014
xserver.configfile: /etc/X11/xorg.conf
xserver.errors: RADEON(G0): [XvMC] Failed to initialize extension.
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
product id 894
vendor LGD
xserver.version: 2:1.15.0-1ubuntu7
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug trusty ubuntu
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https://bugs.launchpad.net/bugs/1299663
Title:
Intel DisplayPort Buffer Underrun
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