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SubjectRe: KMS + fb + FBIOPUT_VSCREENINFO
(cc dri-devel)

On Tue, 28 Apr 2009 10:32:34 +0200 "Peter Hanzel" <hanzelpeter@gmail.com> wrote:

> 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?
>



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