Re: 2.6.18-rc2: depmod warning for backlight.ko

From: Antonino A. Daplas
Date: Tue Jul 18 2006 - 07:55:31 EST

Matt Reuther wrote:
> Hi, Antonino.
> I am still getting warnings on depmod with the 2.6.18-rc2 kernel:
> INSTALL sound/usb/snd-usb-audio.ko
> INSTALL sound/usb/snd-usb-lib.ko
> INSTALL sound/usb/usx2y/snd-usb-usx2y.ko
> if [ -r -a -x /sbin/depmod ]; then /sbin/depmod -ae -F
> 2.6.18-rc2; fi
> WARNING: /lib/modules/2.6.18-rc2/kernel/drivers/video/backlight/backlight.ko
> needs unknown symbol fb_unregister_client
> WARNING: /lib/modules/2.6.18-rc2/kernel/drivers/video/backlight/backlight.ko
> needs unknown symbol fb_register_client
> You posted a patch here a few days ago for 2.6.18-rc1-mm1 which fixes this
> issue. Basically, the USB Apple Cinema display driver selects backlight
> support, but backlight needs some things from framebuffer, which is turned
> off. Kconfig does not recursively select CONFIG_FB, so backlight ends up with
> unresolved symbols.

The patch is still in the -mm tree. They're all in Ottawa right now, so this
will have to wait.


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at