[Bug 74102] [ILK/SNB/IVB/HSW Regression]igt/testdisplay causes *ERROR* Pipe A FIFO underrun
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Mon Nov 3 18:51:48 PST 2014
https://bugs.freedesktop.org/show_bug.cgi?id=74102
--- Comment #8 from lu hua <huax.lu at intel.com> ---
Detail info:
Test on IVB with drm-intel-nightly kernel.
1. clean boot system with VGA:
system report this error, run dmesg -c then run some cases, this error
doesn't appear.
2. clean boot system with headless:
system doesn't have this error, run dmesg -c then run some cases, this error
appears.
Run following cases have this issue:
igt/kms_flip/flip-vs-modeset-vs-hang-interruptible
igt/kms_flip/flip-vs-panning
igt/kms_flip/flip-vs-panning-vs-hang-interruptible
igt/kms_flip/flip-vs-rmfb
igt/kms_flip/vblank-vs-hang-interruptible
igt/kms_flip/vblank-vs-modeset-suspend
igt/kms_pipe_crc_basic/read-crc-pipe-A
igt/kms_setmode/clone-single-crtc
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