WE HAVE RESPONSE!!! THE SCREEN DIMS ON SLIDER!!! albeit with erratic behaviour: in the last 2% or so the screen dims significantly, 5% or so seem the same, 93% expected behaviour.
so slider % 0%------------------------------93%--------100% very dim bright same very dim again as if it were a register that goes from 0000 (or in that case, something like 1000) to FFFF and then back to 0000 again. what should I do at this point? on a side note: what's fascinating for me is that I tried adding the xe.enable_dpcd_backlight=2 line in grub with I think 7.1.5 or stock kernel? and an erratic behaviour occured: screen refresh rate dropped significantly, like even less than 1Hz or so ** Attachment added: "brightness-rc5-drm.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2163244/+attachment/5991737/+files/brightness-rc5-drm.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2163244 Title: Ubuntu 26.04 LTS -- Lenovo Yoga 7 Pro 15IPH11 Screen Brightness not Working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2163244/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
