![](https://seccdn.libravatar.org/avatar/a895f78a81a109471893519443e4d933.jpg?s=120&d=mm&r=g)
http://bugzilla.opensuse.org/show_bug.cgi?id=1185601
http://bugzilla.opensuse.org/show_bug.cgi?id=1185601#c16
--- Comment #16 from Takashi Iwai
(In reply to Takashi Iwai from comment #14)
OK, then could you fiddle with i915.enable_dpcd_backlight=xxx boot option? Pass 0, 1, 2 or 3 to xxx.
0: no change 1: no change 2: no change 3: no change
in all cases the backlight comes on, but the screen itself stays black.
Aha, and this was so even without the option, right?
Do you want dmesgs of these attempts, with drm.debug=0x1e? And if so, with the SuSE kernel or the vanilla 5.12.0?
Not urgently needed, so far. I still need to read down the previous logs. But, more urgently needed is the report to upstream. If not done yet, care to do it? Please tell us the issue URL, so that we can track there. -- You are receiving this mail because: You are on the CC list for the bug.