https://bugzilla.kernel.org/show_bug.cgi?id=29272 Summary: [BISECTED] Screen becomes corrupted when switching video mode with Radeon KMS Product: Drivers Version: 2.5 Kernel Version: 2.6.38-rc5 Platform: All OS/Version: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: Video(DRI - non Intel) AssignedTo: drivers_video-dri@xxxxxxxxxxxxxxxxxxxx ReportedBy: jlp.bugs@xxxxxxxxx CC: alexdeucher@xxxxxxxxx Regression: Yes After updating the kernel to 2.6.38-rc5 screen gets corrupted when video mode switches for KMS. This is on laptop eMachines E640G with integrated ATI Mobility Radeon HD 5470. It was working just fine with -rc4. I have bisected the commits and this one was pointed out as the culprit: 5b40ddf888398ce4cccbf3b9d0a18d90149ed7ff is the first bad commit commit 5b40ddf888398ce4cccbf3b9d0a18d90149ed7ff Author: Alex Deucher <alexdeucher@xxxxxxxxx> Date: Mon Feb 14 11:43:11 2011 -0500 drm/radeon/kms: hopefully fix pll issues for real (v3) The problematic boards have a recommended reference divider to be used when spread spectrum is enabled on the laptop panel. Enable the use of the recommended reference divider along with the new pll algo. v2: testing options v3: When using the fixed reference divider with LVDS, prefer min m to max p and use fractional feedback dividers. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=28852 https://bugzilla.kernel.org/show_bug.cgi?id=24462 https://bugzilla.kernel.org/show_bug.cgi?id=26552 MacbookPro issues reported by Justin Mattock <justinmattock@xxxxxxxxx> Signed-off-by: Alex Deucher <alexdeucher@xxxxxxxxx> Cc: stable@xxxxxxxxxx Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx> :040000 040000 8736f993b97cc8370fd29048761a1e0da4969306 657bdb221e3f4da6efdfec02f8f348db5a537b29 M drivers -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. ------------------------------------------------------------------------------ The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE: Pinpoint memory and threading errors before they happen. Find and fix more than 250 security defects in the development cycle. Locate bottlenecks in serial and parallel code that limit performance. http://p.sf.net/sfu/intel-dev2devfeb -- _______________________________________________ Dri-devel mailing list Dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/dri-devel _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
