<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - i915.fastboot=1 is broken on Thinkpad S1 Yoga (Haswell)" href="https://bugs.freedesktop.org/show_bug.cgi?id=108773#c9">Comment # 9</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - i915.fastboot=1 is broken on Thinkpad S1 Yoga (Haswell)" href="https://bugs.freedesktop.org/show_bug.cgi?id=108773">bug 108773</a> from <a class="email" href="mailto:johannes.krampf@gmail.com" title="Johannes Krampf <johannes.krampf@gmail.com>"> Johannes Krampf</a> <pre>Created <a href="attachment.cgi?id=142659" name="attach_142659" title="Dmesg of drm-tip + backlight patch on T440s">attachment 142659</a> <a href="attachment.cgi?id=142659&action=edit" title="Dmesg of drm-tip + backlight patch on T440s">[details]</a> Dmesg of drm-tip + backlight patch on T440s Same drm-tip version as the the last comment + the backlight patch. The backlight was working before the patch. That is, there was a clear difference between the black screen after boot and the black screen after xset dpms force off. With the patch, the backlight was off after boot as well and there was no difference before and after xset dpms force off. I could see boot messages on the screen for a split-second after exiting the boot loader. It appeared that the screen was half-filled (top-to-bottom) with messages before it turned off. Maybe this information helps in determining the timing of the problematic action.</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>