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Re: backlight control and debian kernel 2.6.10



On Tue, Mar 01, 2005 at 11:22:55AM +0100, Djoume SALVETTI wrote:
> Le mardi 03/01/05 Guido Guenther <agx@debian.org> a écrit :
> > Hi Djoume,
> > On Tue, Mar 01, 2005 at 09:28:50AM +0100, Djoume SALVETTI wrote:
> > > I've notice that despite kernel image 2.6.10 include and activate
> > > (CONFIG_PMAC_BACKLIGHT=y) Guido Guenther backlight control patch, I'm
> > > not able to control it while using this kernel (I've
> > > append="video=rivafb:1024x768-8@75" in my yaboot.conf).
> > Could you use 'strace fblevel <value>' to see what error code the kernel
> > actually returns?
> 
> sure : 
> 
> gotan:/home/djoume# fblevel 10
> ioctl PMU_IOC_SET_BACKLIGHT: No such device
O.k. you're using offb instead of rivafb then. "fbset -i" will tell you
for sure. I assume passing "video=rivafb" doesn't help, since rivafb
can't take over from offb, right? Compiling in both definitely works.
Could you check how radeonfb is being handled in the debian kernels?
Cheers,
 -- Guido

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