KMS + fb + FBIOPUT_VSCREENINFO
From: Peter Hanzel
Date: Tue Apr 28 2009 - 04:32:24 EST
Hello.
I have tried DRM with intel KMS and it is workiing. I am using only
framebuffer console.
Fbcon initializes 1280x800 mode and it works like a charm.
But when I try to call FBIOPUT_VSCREENINFO on /dev/fb0, it always returns
EINVAL,
I have checked drivers/gpu/drm/i915/intel_fb.c
and found that
intelfb_check_var returns -EINVAL if (var->pixclock == -1 ||
!var->pixclock)
intelfb_set_par returns -EINVAL if (var->pixclock != -1) {
DRM_ERROR("PIXEL CLCOK SET\n"); return
So the FBIOPUT_VSCREENINFO always fails.
So is the change of resolution not supported through FBIOPUT_VSCREENINFO
call?
Thanks.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/