Public bug reported:
If I start the system with radeon module blacklisted everything works
with the issue of having the discrete radeon card on and a higher cpu
temperature.
If I insert the radeon module many things hang.
In particular: if I start skype before I insert the module I cannot do calls
anymore. If I try to start skype after inserting the module it hangs at the
login.
The same is true for "drive manager" and "audio and video settings" from
systemsettings.
Moreover vgaswitcheroo is unable to switch on the discrete card.
More explictly, issuing
echo ON > /sys/kernel/debug/vgaswitcheroo/switch
the discrete card remains off.
Description: Ubuntu 14.04 LTS
Release: 14.04
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xserver-xorg-video-ati 1:7.3.0-1ubuntu3
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
CurrentDesktop: KDE
Date: Mon Apr 21 15:58:22 2014
InstallationDate: Installed on 2012-02-18 (792 days ago)
InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
SourcePackage: xserver-xorg-video-ati
UpgradeStatus: Upgraded to trusty on 2014-04-20 (0 days ago)
** Affects: xserver-xorg-video-ati (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug trusty
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which is subscribed to xserver-xorg-video-ati in Ubuntu.
https://bugs.launchpad.net/bugs/1310632
Title:
when radeon module is inserted skype, drive manager and audio and
video settings hang; vgaswitcheroo does not work
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