http://bugzilla.kernel.org/show_bug.cgi?id=12444
Summary: X hangs following switch from radeonfb console -
Bisected
Product: Drivers
Version: 2.5
KernelVersion: 2.6.29-rc1
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI)
AssignedTo: drivers_video-...@kernel-bugs.osdl.org
ReportedBy: gra...@gmurray.org.uk
Latest working kernel version:2.6.28
Earliest failing kernel version:2.6.29-rc1
Distribution:Gentoo
Hardware Environment:Core2 duo 6700, Radeon X300
Software Environment: Xorg-x11 7.4, xf86-video-ati 6.10, kde-4.1.3, libx11
1.1.5
Problem Description: On switching from KDE-4 with desktop effects enabled to
'text' console and back leave X hung with top, approximately 1/3, of screen
corrupted, keyboard and mouse are unresponsive. SAK K returns to kdm login
screen. If desktop effects are not enabled, all works OK.
I have bisected the problem and the commit which introduces it is
7c1c2871a6a3a114853ec6836e9035ac1c0c7f7a drm: move to kref per-master
structures.
Steps to reproduce:Configure kernel for radeonfb,
Start KDE with desktop effects enabled
Switch to 'text' console and back to X
Top, approximately 1/3, of screen is corrupted, keyboard and mouse are
unresponsive. SAK K returns to kdm login screen.
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