** Tags added: oem-priority -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem in Ubuntu. https://bugs.launchpad.net/bugs/1813877
Title: Can't adjust brightness on DELL UHD dGPU AIO Status in HWE Next: Fix Released Status in OEM Priority Project: New Status in linux package in Ubuntu: Fix Released Status in linux-oem package in Ubuntu: Fix Released Status in linux-oem-osp1 package in Ubuntu: Fix Released Status in linux source package in Bionic: Fix Released Status in linux-oem source package in Bionic: Fix Released Status in linux-oem-osp1 source package in Bionic: Fix Released Status in linux source package in Disco: Fix Released Status in linux source package in Eoan: Fix Released Bug description: [Impact] The dell-uart-backlight driver has been loaded, but the backlight is controller by graphics driver instead of scalar IC. The old way to determinate weather the driver should be loaded is not working anymore, since the behavior of scalar command, show firmware version, is not the same as old platforms. [Fix] Using more a reliable command, get_scalar_status, to check if scalar is in charge of the AIO backlight. For the old platforms which don't have the new command, I add a list to list them all and use the old way to determinate the scalar IC. [Test] Verified on old and new Dell AIO platforms. [Regression Potential] Low. The quirk lists all old platforms which use the old way to check if scalar IC is in use. So, it won't change the behavior on old platforms, and apply the new method on new platforms. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1813877/+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
