This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-focal -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1917419 Title: Can't adjust brightness on Dell Precision 7000 laptop Status in HWE Next: New Status in linux package in Ubuntu: In Progress Status in linux-oem-5.10 package in Ubuntu: Invalid Status in linux-oem-5.10 source package in Focal: Fix Committed Status in linux source package in Hirsute: In Progress Bug description: [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. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1917419/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
