<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [ILK/SNB/IVB/HSW Regression]igt/testdisplay causes *ERROR* Pipe A FIFO underrun" href="https://bugs.freedesktop.org/show_bug.cgi?id=74102#c8">Comment # 8</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [ILK/SNB/IVB/HSW Regression]igt/testdisplay causes *ERROR* Pipe A FIFO underrun" href="https://bugs.freedesktop.org/show_bug.cgi?id=74102">bug 74102</a> from <a class="email" href="mailto:huax.lu@intel.com" title="lu hua <huax.lu@intel.com>"> lu hua</a> <pre>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</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>