Thanks Daniel for your prompt response. ### Steps that ultimately solved the problem by adding the parameter in Ubuntu:
```text GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.enable_dpcd_backlight=0" ``` in: ```text /etc/default/grub ``` Then run: ```bash sudo update-grub ``` -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2163556 Title: Brightness control does not affect screen on Intel HD Graphics 620 / AMD hybrid laptop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-7.0/+bug/2163556/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
