Public bug reported: image: disco 19.04 kernel: 5.0.0-15-generic also verified failed on linux-image-unsigned-5.2.0-050200rc2-generic
also refer to : - https://askubuntu.com/questions/824949/lenovo-thinkpad-x1-yoga-oled-brightness - https://bugs.freedesktop.org/show_bug.cgi?id=97883 Linux can not control the brightness on the OLED panel in the traditional way [1]. Although there's a workaround from the community [2] that to execute script while brightness hotkey event is triggered. But if we want to upstream it, it's still a problem to recognize the OLED panel so that the system knows when to go workaround. - EDID of my laptop which has OLED: https://paste.ubuntu.com/p/w7rVqJTYDy/ - EDID of the same model without OLED: https://paste.ubuntu.com/p/P3ChhX9yBJ/ there's a kernel patch related OLED for reference: - https://patchwork.kernel.org/patch/6133471/ [1] https://wiki.ubuntu.com/Kernel/Debugging/Backlight [2] https://askubuntu.com/questions/824949/lenovo-thinkpad-x1-yoga-oled-brightness ** Affects: oem-priority Importance: Undecided Assignee: Alex Tu (alextu) Status: New ** Affects: linux (Ubuntu) Importance: Undecided Status: Incomplete ** Also affects: oem-priority Importance: Undecided Status: New ** Changed in: oem-priority Assignee: (unassigned) => Alex Tu (alextu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1831587 Title: brightness control not work with OLED panel To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1831587/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
