Public bug reported:
The system kind of "freezes" randomly (opening Unity Dash, browsing with
Firefox, opening LibreOffice). Moving the mouse or using keyboard
shortcuts that result in a graphical reaction don't produce an immediate
result but eventually an result at a later time (sometimes up to 5 or
more minutes later). Sometimes there is also problems with the graphical
output (parts of the screen become black). To get out of this "freeze"
it helps to switch to a console (ctrl+alt+f1) which works almost
immediately (sometimes takes a few seconds but faster than anything
else), then switch back using ctrl+alt+f7. The system works as expected
again.
This is on an Acer Aspire 4935G with NVIDIA graphics (proprietary
driver).
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-37-generic 3.2.0-37.58
ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35
Uname: Linux 3.2.0-37-generic i686
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC888 Analog [ALC888 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: lisa 1922 F.... pulseaudio
CRDA:
country DE:
(2400 - 2483 @ 40), (N/A, 20)
(5150 - 5250 @ 40), (N/A, 20), NO-OUTDOOR
(5250 - 5350 @ 40), (N/A, 20), NO-OUTDOOR, DFS
(5470 - 5725 @ 40), (N/A, 26), DFS
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xdb300000 irq 47'
Mixer name : 'Nvidia MCP77/78 HDMI'
Components : 'HDA:10ec0888,10250167,00100202
HDA:14f12c06,10250167,00100000 HDA:10de0003,10de0101,00100000'
Controls : 37
Simple ctrls : 18
Date: Wed Feb 6 21:06:37 2013
HibernationDevice: RESUME=UUID=c594dae5-1007-4d42-91a5-c66ea8fde07e
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
MachineType: Acer Aspire4935G
MarkForUpload: True
ProcEnviron:
LANGUAGE=de:en
PATH=(custom, no user)
LANG=de_DE.UTF-8
LC_MESSAGES=de_DE.UTF-8
SHELL=/bin/bash
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic
root=UUID=b34dc1fc-6ab7-478c-a3f8-36dd8501eee9 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.2.0-37-generic N/A
linux-backports-modules-3.2.0-37-generic N/A
linux-firmware 1.79.1
SourcePackage: linux
UpgradeStatus: Upgraded to precise on 2012-04-26 (286 days ago)
dmi.bios.date: 12/02/2009
dmi.bios.vendor: Acer
dmi.bios.version: V1.08
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Aspire4935G
dmi.board.vendor: Acer
dmi.board.version: V1.08
dmi.chassis.type: 1
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.08
dmi.modalias:
dmi:bvnAcer:bvrV1.08:bd12/02/2009:svnAcer:pnAspire4935G:pvrV1.08:rvnAcer:rnAspire4935G:rvrV1.08:cvnAcer:ct1:cvrV1.08:
dmi.product.name: Aspire4935G
dmi.product.version: V1.08
dmi.sys.vendor: Acer
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 precise running-unity
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https://bugs.launchpad.net/bugs/1117659
Title:
"Graphical freeze" or extrem slowdown
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