<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [BDW Regression] blank screen on eDP with 38aecea0" href="https://bugs.freedesktop.org/show_bug.cgi?id=76711#c21">Comment # 21</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [BDW Regression] blank screen on eDP with 38aecea0" href="https://bugs.freedesktop.org/show_bug.cgi?id=76711">bug 76711</a> from <a class="email" href="mailto:jinxianx.guo@intel.com" title="Guo Jinxian <jinxianx.guo@intel.com>"> Guo Jinxian</a> <pre>Created <a href="attachment.cgi?id=97934" name="attach_97934" title="dmesg">attachment 97934</a> <a href="attachment.cgi?id=97934&action=edit" title="dmesg">[details]</a> dmesg On latest -nightly(7fa20daad840000b56924136d02a8d33265f29ca) reverted (38aecea0ccbb909d635619cba22f1891e589b434), then patched [PATCH 1/2] drm/i915: clean up VBT eDP link param decoding and [PATCH 2/2] drm/i915: use lane count and link rate from VBT as minimums for eDP, 3200x1800 eDP still shows blackscreen. Please check the dmesg with "drm.debug=0xe". Thanks. [root@x-bdw07 tests]# xrandr Screen 0: minimum 8 x 8, current 3200 x 1800, maximum 32767 x 32767 eDP1 connected 3200x1800+0+0 (normal left inverted right x axis y axis) 293mm x 165mm 3200x1800 60.00*+ 51.60 2048x1536 60.00 1920x1440 60.00 1856x1392 60.01 1792x1344 60.01 1600x1200 60.00 1400x1050 59.98 1280x1024 60.02 1280x960 60.00 1024x768 60.00 800x600 60.32 56.25 640x480 59.94 DP1 disconnected (normal left inverted right x axis y axis) HDMI1 disconnected (normal left inverted right x axis y axis) HDMI2 disconnected (normal left inverted right x axis y axis) VIRTUAL1 disconnected (normal left inverted right x axis y axis)</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> </ul> </body> </html>