I use three notebooks from Sony VAIO FW11* series with "Mobilitiy Radeon HD 3400 Series" (M82) inside. There is quite big problem about controlling backlight level which is especially visible in case of FW11S (double lamp). To take control over backlight I need to use hacked DSDT.hex, fglrx and optionally patched sony-laptop kernel module [1]. If I replace fglrx with radeonhd controlling backlight doesn't work anymore. I wonder if this is possible to implement this backlight control in radeonhd? Using fglrx is very problematic for me, as quite every switch to console means machine lock. I made 6 full registers dumps in 6 different backlight levels using fglrx. Then I compared these dumps and got quite nice table [2]. To make it cleaner, I highlighted rows where every cell contains unique value. Could someone check this, please? [1] http://bugzilla.kernel.org/show_bug.cgi?id=11682 [2] http://files.zajec.net/registers.backlight.xhtml -- Rafał Miłecki N�����r��y隊Z�u�'�߮�˛���m�)z{.��+�Z+i�b�*'jW(�f�vǦj)kiר�~��i����� ��