recently I've installed the 2.6.20-, 220.127.116.11- and the 2.6.21-rc4-Kernel on my Asus M6Ne Laptop I'm running with Debian Etch. With all these kernels I have a problem I never had with 18.104.22.168 and before. It's about this: When I start the Mplayer, my laptop-display is dimmed down so I can hardly see anything. With Mplayer it happens just one time - the first time I start it during one session. With VLC it happens every time I start a video. The only thing I've noticed up to now is this output of /var/log/Xorg.0.log that appears every time, the lcd is dimmed down:
(**) RADEON(0): RADEONDisplayPowerManagementSet(0,0x0)
It's a Ati Radeon Mobility 9700.
I've activated the backlight-options in the kernel and all ACPI-Options are compiled into the kernel.
Does anyone know what this is about and maybe how to fix it?
Thanks in advance;-)!