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-oem-5.6 in Ubuntu. https://bugs.launchpad.net/bugs/1904991 Title: [SRU][OEM-5.6] UBUNTU: SAUCE: Fix brightness control on BOE 2270 panel Status in HWE Next: New Status in HWE Next groovy series: New Status in linux package in Ubuntu: Incomplete Status in linux-oem-5.6 package in Ubuntu: New Status in linux source package in Focal: Incomplete Status in linux-oem-5.6 source package in Focal: Fix Committed Status in linux source package in Groovy: New Status in linux source package in Hirsute: Incomplete Bug description: [Impact] BOE 2270 panel is used by several models of ThinkPads. This brightness can not be controlled by default PWM. [Fix] The panel claims both PWM and AUX supports. But actually PWM works on SDR mode, AUX works on HDR mode. Intel i915 driver got a new SDR support to use PWM by maintainer, still in upstream review. To fix this on certain project, use a quirk first to fix this. The maintainer's fix can be backported in future. [Test Case] Backlight brightness can be changed. [Regression Potential] Low, Fix for specific panel ID, no effects for others. Since this is temporary quirk, it will go to oem-5.6 only. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1904991/+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
