<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - Kernel "NULL pointer dereference" with MST monitor on HSW" href="https://bugs.freedesktop.org/show_bug.cgi?id=97666#c32">Comment # 32</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - Kernel "NULL pointer dereference" with MST monitor on HSW" href="https://bugs.freedesktop.org/show_bug.cgi?id=97666">bug 97666</a> from <a class="email" href="mailto:carlos.santa@intel.com" title="Carlos Santa <carlos.santa@intel.com>"> Carlos Santa</a> <pre>Hi Ville, I tested the following 3 patches on today's drm-nightly: 1. drm/i915: Refresh that status of MST capable connectors in ->detect() 2. drm/fb-helper: Fix connector ref leak on error 3. drm/fb-helper: Keep references for the current set of used connectors You're right, after applying #1, the null pointer issue comes back but after applying #2, and doing the display power on/off to repro the bug, the system freezes and never comes back again. Same behavior if then applying patch #3 on top, which is supposed to be the fix. Carlos</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>