<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [Regression BDW] backlight flickering/display artifacting on Broadwell integrated graphics with 4.12-rc1" href="https://bugs.freedesktop.org/show_bug.cgi?id=101111#c15">Comment # 15</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [Regression BDW] backlight flickering/display artifacting on Broadwell integrated graphics with 4.12-rc1" href="https://bugs.freedesktop.org/show_bug.cgi?id=101111">bug 101111</a> from <a class="email" href="mailto:radhakrishna.sripada@intel.com" title="Radhakrishna Sripada <radhakrishna.sripada@intel.com>"> Radhakrishna Sripada</a> <pre>One thing that I would do to check if it is a fbc related flicker is to boot with command line parameter i915.enable_fbc=0 and check if the flicker happens. Since you no longer see the original flicker, I would suggest to raise a different bug for the new flicker that you are observing with relevant logs. @Nicholas: What is the current drm debug level that you are using? can you do "echo 0x6 > /sys/module/drm/parameters/debug" and see if you are still observing FB logs? I do not see any down sides by adding to the quirk table. Jani Nikula can you confirm?</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>