449263 2022-01-27 19:58:44 +0000 Laptop screen not controllable when hdmi DDC monitor is plugged in 2023-05-25 03:38:50 +0000 1 1 10 Unmaintained Powerdevil general 5.23.5 Arch Linux Linux RESOLVED DUPLICATE 469895 NOR normal --- 1 hockeymikey plasma-bugs-null albertvaka kde nate ngoquang2708 nowa 0 oldest_to_newest 2098782 0 hockeymikey 2022-01-27 19:58:44 +0000 SUMMARY I have an Omen 15 2020. So when a DDC enabled monitor is plugged into the hdmi port, powerdevil (with -DHAVE_DDCUTIL) is able to control it, but then the laptop monitor ceases to be controllable. Unplugging the hdmi monitor allows the laptop screen to be controlled again. STEPS TO REPRODUCE 1. Plug DDC monitor into laptop 2. Try to dim screens OBSERVED RESULT Only dims DDC monitor EXPECTED RESULT Dims DDC monitor and laptop screen. SOFTWARE/OS VERSIONS Linux: Arch KDE Plasma Version: 5.23.5 KDE Frameworks Version: 5.90.0 Qt Version: 5.15.2 2232672 1 nate 2023-05-23 16:06:31 +0000 *** Bug 469895 has been marked as a duplicate of this bug. *** 2232959 2 albertvaka 2023-05-24 21:59:51 +0000 Thanks for the bug triaging work Nate! I know we usually prefer keeping the oldest bug when marking as duplicate, but given the conversation happened in the other thread I think it would be best to do it the other way around in cases like this :) I added a reply on the other bug. 2232988 3 nate 2023-05-25 03:38:40 +0000 Sure, that makes sense. 2232989 4 nate 2023-05-25 03:38:50 +0000 *** This bug has been marked as a duplicate of bug 469895 ***