Re: No video signal on iBook G4 with latest kernel
Hi Adrian,
John Paul Adrian Glaubitz wrote:
just as a heads-up: I'm not getting a video signal with my iBook G4 with
the latest kernel. dmesg shows error messages that seem to be related to
the problem:
[ 14.222735] radeon 0000:00:10.0: [drm] bpp/depth value of 16/16 not supported
[ 14.222774] radeon 0000:00:10.0: [drm] bpp/depth value of 16/16 not supported
[ 14.222780] radeon 0000:00:10.0: [drm] No compatible format found
I have reported the issue in the Freedesktop bug tracker for the radeon driver [1].
video signal of the internal LCD or external video? When does this happen
I just updated my iBook G4 14" and it works. Boot messages, console and
X11 (but read below).
I get the same error:
[ 30.278787] [drm] radeon legacy LVDS backlight initialized
[ 30.313728] [drm] Initialized radeon 2.50.0 20080528 for 0000:00:10.0
on minor 0
[ 30.806041] radeon 0000:00:10.0: [drm] bpp/depth value of 16/16 not
supported
[ 30.806115] radeon 0000:00:10.0: [drm] bpp/depth value of 16/16 not
supported
[ 30.806127] radeon 0000:00:10.0: [drm] No compatible format found
[ 32.182023] radeon 0000:00:10.0: [drm] fb0: radeondrmfb frame buffer
device
What happens is that perhaps you see the kernel booting, but then loose
the "login" and have a black screen (but you can type blindly?)
That happens here. I need to brighten the LCD several times until I see
something, it looks like the brightness is not correctly sync'd.
But this has been happening since a long time, it is not the latest kernel.
Riccardo
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