Kernel 5.7rc1 is released, and it can be downloaded @ https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.7-rc1/
There are some changes related to amd backlight from 5.6 to 5.7rc1 such as the following (list may be not completed), and it surely worthwhile to give 5.7rc1 a try. accde06fcb7fd82abdfa77ecf4dc63d724a6d9bf 945628101be55833a63355510d4b6c934183deab 8a683eb6311a03b655ab8ff368cd7b203074275c cb8348fec250e517b5facb4cab3125ddc597f9aa -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861925 Title: BrightnessOutofRange: Actual brightness for amdgpu_bl0 not in range 0..255 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1861925/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs