** Description changed: [Impact] Screen brightness can't be adjusted. It can't be adjusted via Hotkey and system setting. You can see the value bar changed, but brightness didn't. - [Fix] + Bisect mainine kernel and found below commit in v5.12-rc1 fix the issue. + f12110afee05 drm/i915/dp: Program source OUI on eDP panels [Test] + Verified on Dell Precision 7000 laptop with DPCD eDP panel. [Where problems could occur] + It checks the source OUI before writing it, so it won't re-program the source OUI during driver initialization.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1917419 Title: Can't adjust brightness on Dell Precision 7000 laptop To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1917419/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
