https://bugs.freedesktop.org/show_bug.cgi?id=93879
Bug ID: 93879
Summary: kernel 4.4.0 causes application lockup and unusable
interfaces with radeon hardware
Product: DRI
Version: XOrg git
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: critical
Priority: medium
Component: DRM/Radeon
Assignee: dri-devel at lists.freedesktop.org
Reporter: jimmy at boombatower.com
Created attachment 121320
--> https://bugs.freedesktop.org/attachment.cgi?id=121320&action=edit
sh -c "cat /proc/version; ./scripts/ver_linux; cat /proc/cpuinfo; cat
/proc/modules; cat /proc/ioports; cat /proc/iomem; lspci -vvv; cat
/proc/scsi/scsi" > env_info
While running Plasma 5 on 4.4.0 the following occurs periodically:
- chromium locks up
- plasma desktop locks up
- unable to enter password on plasma lock screen
A trigger for locking chromium up seems to be to resize the window by dragging
to screen edges (top to fullscreen, left to tack up left half of screen, etc).
Otherwise, it also seems to somewhat randomly freeze over time.
Reverting to 4.3.x resolves the issues.
Environment
-----------
Distro: openSUSE Tumbleweed (20160121) (x86_64)
Kernel version: 4.4.0-1.2 (works on <= 4.3.3-6)
OpenGL renderer string: Gallium 0.4 on AMD TAHITI (DRM 2.43.0, LLVM 3.7.0)
OpenGL core profile version string: 4.1 (Core Profile) Mesa 11.1.0
Xorg version: 7.6_1.18.0-5.2
xf86-video-ati version: 7.6.1-1.2
DRI3 enabled
Hardware: Radeon HD 7970 ghz
output from kernel bug reporting guide attached
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