I found that the kernel option video.use_native_backlight=0 fixes these issues. Brightness is always at a reasonable level and adjustable again. (In fact unfortunately it can't be dimmed to black anymore, which on the upside avoids unreasonable defaults.) Tested for Linux 3.16 and 3.17.
$ ls /sys/class/backlight/ acpi_video0 intel_backlight So what to do now to get this fixed both for Jessie (at least document it in some general way) and in the long run (I guess file upstream report for the adjust issue)? Greets jre btw: I was hinted to this workaround by the similar, but not identical bug reports https://bugs.debian.org/762285 and https://bugzilla.kernel.org/show_bug.cgi?id=85051. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
