Also confirmed on another XPS 13 system:
With the kamal8 kernel after the suspend, the OSD shows accordingly with the brightness hot key press, but the brightness doesn't change.
Brightness can be changed via hotkey before and after suspend with kamal6. With kamal8, the brightness can only be adjusted before an S3.
Also confirmed on another XPS 13 system:
With the kamal8 kernel after the suspend, the OSD shows accordingly with the brightness hot key press, but the
brightness doesn't change.
Brightness can be changed via hotkey before and after suspend with kamal6. With kamal8, the brightness can only be adjusted before an S3.