It would be helpful to have a trace of the kernel backlight functions. Please run the following:
$ sudo sh -c "echo '*backlight*' > /sys/kernel/debug/tracing/set_ftrace_filter" $ sudo sh -c "echo function_graph > /sys/kernel/debug/tracing/current_tracer" $ sudo sh -c "echo 1 > /sys/kernel/debug/tracing/tracing_enbled" $ sudo sh -c "echo 1 > /sys/kernel/debug/tracing/tracing_on" Then hit one of the backlight buttons. Now, upload the file /sys/kernel/debug/tracing/trace. Thanks -- Brightness hot-keys don't work on Samsung NC10 https://bugs.launchpad.net/bugs/540333 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
