<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [CFL][regression][bisected] Black screen since 4.14.4" href="https://bugs.freedesktop.org/show_bug.cgi?id=104158#c41">Comment # 41</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [CFL][regression][bisected] Black screen since 4.14.4" href="https://bugs.freedesktop.org/show_bug.cgi?id=104158">bug 104158</a> from <a class="email" href="mailto:abhijeet.kumar@intel.com" title="Abhijeet Kumar <abhijeet.kumar@intel.com>"> Abhijeet Kumar</a> <pre>In past I've worked on exactly similar issue. After boot, only cursor and clock at bottom was visible. And the reason i could root cause was that the user-space was sending commits too fast. By applying the below patch, I could fix it. drm/i915: Always wait for flip_done, v2. The next commit removes the wait for flip_done in in drm_atomic_helper_commit_cleanup_done, but we need it for the tests to pass. Instead of using complicated vblank tracking which ends up being ignored anyway, call the correct atomic helper. :) Changes since v1: - Always call drm_atomic_helper_wait_for_flip_done, even for legacy cursor updates. (danvet) Signed-off-by: Maarten Lankhorst <<a href="mailto:maarten.lankhorst@linux.intel.com">maarten.lankhorst@linux.intel.com</a>> --- drivers/gpu/drm/i915/i915_drv.h | 3 +- drivers/gpu/drm/i915/intel_display.c | 84 +++--------------------------------- 2 files changed, 8 insertions(+), 79 deletions(-) Maybe you wanna try ?</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>