<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [BYT Regression]HDMI screen flashes when running "testdisplay -o 30,3"" href="https://bugs.freedesktop.org/show_bug.cgi?id=88691#c2">Comment # 2</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [BYT Regression]HDMI screen flashes when running "testdisplay -o 30,3"" href="https://bugs.freedesktop.org/show_bug.cgi?id=88691">bug 88691</a> from <a class="email" href="mailto:yi.sun@intel.com" title="Yi Sun <yi.sun@intel.com>"> Yi Sun</a> <pre>(In reply to Jiang Wang from <a href="show_bug.cgi?id=88691#c0">comment #0</a>) > Created <a href="attachment.cgi?id=112644" name="attach_112644" title="log">attachment 112644</a> <a href="attachment.cgi?id=112644&action=edit" title="log">[details]</a> > log > > ==System Environment== > -------------------------- > Regression: Yes. I tried _drm-intel-testing 2014_12_06 commit and > testdisplay shows normal. > > Non-working platforms: BYT > > ==kernel== > -------------------------- > -testing: 2015_01_18 commit 6dd5bb25ce0ed3a0012b69d553d74e1a0d39c313(test > fails) > > > ==Bug detailed description== > ----------------------------- > Connect to HDMI display, Boot BYT, login and run "testdisplay -o 30,3", HDMI > screen flashes. > > The same issue happens on VGA, DP screen too. > > ==Reproduce steps== > ---------------------------- > 1. Connect to HDMI display, Boot BYT, login and run "testdisplay -o 30,3" > > Bisect is on going. Jiang, you can provide the display timing/resolution which you were using And notice that any time you want to attach dmesg, be sure you have option drm.debug=0xe !</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>