http://bugzilla.opensuse.org/show_bug.cgi?id=1168776
http://bugzilla.opensuse.org/show_bug.cgi?id=1168776#c8
--- Comment #8 from Achim Gratz ---
The plot thickens... back on the original system (Xeon E3-1225v3 and a 4k
display); FBC is actually _not_ on:
# cat /sys/kernel/debug/dri/0/i915_fbc_status
FBC disabled: disabled at runtime per module param
That likely explains why trying to switch it off just taints the kernel and
doesn't seem to do aynthing else.
# lspci -vv -s 00:02.0
00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3 Processor
Integrated Graphics Controller (rev 06) (prog-if 00 [VGA controller])
DeviceName: Onboard IGD
Subsystem: Dell Device 0620
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- /sys/module/i915/parameters/enable_fbc
# cat /sys/kernel/debug/dri/0/i915_fbc_status
FBC disabled: pixel rate is too big
The messages continue to be spewed out, but the actual error that trigger them
is probably unrelated to framebuffer compression and a bug somewhere else in
the driver.
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