<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [i915] eDP cannot light up after waking up from suspend the second time." href="https://bugs.freedesktop.org/show_bug.cgi?id=112407#c3">Comment # 3</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [i915] eDP cannot light up after waking up from suspend the second time." href="https://bugs.freedesktop.org/show_bug.cgi?id=112407">bug 112407</a> from <a class="email" href="mailto:yvonnex.yang@intel.com" title="Yvonne <yvonnex.yang@intel.com>"> Yvonne</a> <pre>(In reply to Lakshmi from <a href="show_bug.cgi?id=112407#c2">comment #2</a>) > (In reply to Yvonne from <a href="show_bug.cgi?id=112407#c0">comment #0</a>) > > > > Expected result: > > After step3, eDP should light up after waking up from suspend. > > > What have you done to make eDP working after step3? eDP cannot light up, but remote can connect to system. Issue only can be recovered via reboot. > Can you attach the full dmesg from boot with kernel parameters > drm.debug=0x1e log_buf_len=4M. > > Also, I would recommend to reproduce this issue using drm-tip > (<a href="https://cgit.freedesktop.org/drm-tip">https://cgit.freedesktop.org/drm-tip</a>) I tried to reproduce issue with drm-tip (top commit is 20edef7), but with the kconfig I attached, it seems suspend cannot work. System will hang if do suspend via "sudo rtcwake -m mem -s 10" Besides, I tried to reproduce this issue on CML RVP with codec ALC700 in SDW mode with linux-image-unsigned-5.4.0-050400-generic_5.4.0-050400.201911242031_amd64.deb, issue can still be reproduced. Full dmesg with kernel parameters drm.debug=0x1e log_buf_len=4M please see the attachment.</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> <li>You are the assignee for the bug.</li> </ul> </body> </html>