>Any reason why you didn't cc: the developers of that commit? Sorry I did not realise I should have done that. >Do you also have this issue on the latest 6.3-rc release? Yes I have tested it recently by installing the latest 6.3-rc7 kernel , and I do encounter the same issue there. I have linked the screenshots below referring the same. Kernel 6.3.0-rc7 with 43% brightness - https://i.imgur.com/5LqsEJb.jpg > That's what this commit does, right? According to the commit , it was pushed to fix backlight controls which were broken on Lenovo Thinkpad W530 while using NVIDIA. It was not intended to reduce the backlight intensity on W530. Backlight is dimmer than before even when using the laptop in Intel iGPU mode. Thanks