When returning from suspend, the image on the screen is returned but frozen. No mouse cursor movement, no keyboard input. Switch to console (ctrl+alt+f2) does not work. Ctrl+alt+del does not work. Hovever, the system seems to be alive since the hard drive light flashes occationally and fan spins at normal.
WORKAROUND: I switched to discrete graphics in the BIOS (Radeon).
WORKAROUND: /usr/lib/pm-utils/sleep.d/95switcheroo/sleep.d :
#!/bin/sh
[ -f /sys/kernel/debug/vgaswitcheroo/switch ] || exit $NA
case "$1" in
hibernate|suspend)
echo ON > /sys/kernel/debug/vgaswitcheroo/switch
if grep -c 'IGD:+:Pwr' /sys/kernel/debug/vgaswitcheroo/switch
then
echo MIGD > /sys/kernel/debug/vgaswitcheroo/switch
fi
;;
thaw|resume)
echo OFF > /sys/kernel/debug/vgaswitcheroo/switch
;;
*) exit $NA
;;
esac
add:
echo OFF > /sys/kernel/debug/vgaswitcheroo/switch
to /etc/rc.local
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: linux-image-3.5.0-19-generic 3.5.0-19.30
ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7
Uname: Linux 3.5.0-19-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.6.1-0ubuntu6
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: diskdoc 3436 F.... pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
Date: Sat Dec 8 00:21:28 2012
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=11efe0be-9f52-4ee5-ae6c-7e025de38353
InstallationDate: Installed on 2010-06-07 (914 days ago)
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427.1)
MachineType: Acer Aspire 3820
MarkForUpload: True
ProcFB:
0 inteldrmfb
1 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-19-generic root=UUID=8b7cae99-dae3-4d14-bbd3-24f82a9e0b57 ro quiet splash rootflags=data=writeback vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.5.0-19-generic N/A
linux-backports-modules-3.5.0-19-generic N/A
linux-firmware 1.95
SourcePackage: linux
UpgradeStatus: Upgraded to quantal on 2012-12-05 (2 days ago)
dmi.bios.date: 10/27/2010
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: V1.19
dmi.board.asset.tag: No Asset Tag
dmi.board.name: JM31_CP
dmi.board.vendor: Acer
dmi.board.version: V1.19
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.19
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrV1.19:bd10/27/2010:svnAcer:pnAspire3820:pvrV1.19:rvnAcer:rnJM31_CP:rvrV1.19:cvnAcer:ct10:cvrV1.19:
dmi.product.name: Aspire 3820
dmi.product.version: V1.19
dmi.sys.vendor: Acer
This change was made by a bot.