Re: backlight control and debian kernel 2.6.10
On Tue, Mar 01, 2005 at 01:18:10PM +0100, Djoume SALVETTI wrote:
> Le mardi 03/01/05 Guido Guenther <agx@debian.org> a écrit :
> > > 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.
>
> gotan:/home/djoume# fbset -i
>
> mode "1024x768-116"
> # D: 100.000 MHz, H: 93.985 kHz, V: 116.318 Hz
> geometry 1024 768 1024 768 8
> timings 10000 16 16 16 16 8 8
> rgba 8/0,8/0,8/0,0/0
> endmode
>
> Frame buffer device information:
> Name : OFfb NVDA,Displ
> Address : 0xa0008000
> Size : 786432
> Type : PACKED PIXELS
> Visual : STATIC PSEUDOCOLOR
> XPanStep : 0
> YPanStep : 0
> YWrapStep : 0
> LineLength : 1024
> Accelerator : No
>
> > 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?
>
> gotan:/home/djoume# grep -i radeon /boot/config-2.6.10-powerpc
> CONFIG_DRM_RADEON=m
> # CONFIG_FB_RADEON_OLD is not set
> CONFIG_FB_RADEON=y
> CONFIG_FB_RADEON_I2C=y
> # CONFIG_FB_RADEON_DEBUG is not set
>
> Sven, would it be possible to have CONFIG_FB_RIVA=y by default in Debian kernel?
See my other mail, it depends though on the size of it. How comes rivafb can't
take over from offb though ? Can you or Guido fill a proper bug report about
this ? We still want to be able to fit on a miboot floppy, and integrate as
many fbdevs as possible.
-rw-r--r-- 1 root root 65118 2005-01-29 23:47 /lib/modules/2.6.8-powerpc/kernel/drivers/video/riva/rivafb.ko
So, this means adding 65KB to the kernel, or probably 20-30KB compressed, will
make a test with it builtin and the miboot floppies, and tell you.
Friendly,
Sven Luther
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