Re: Intel KMS + fbcon + Mplayer

[Jakob B. <ja...@vm...>]

On 29 apr 2009, at 12.04, Peter Hanzel wrote:
> Hello.
>
> I have tried Intel KMS in kernel 2.6.91.1 with fbcon. I am using only
> framebuffer console.
> Most fb apps works, but I have problem with mplayer.
> The init works but the video is badly displayed.
> I have investigated the problem and found, that for my laptop mode
> 1280x800-32.
>
> The ioctl on /dev/fb0 FBIOGET_VSCREENINFO returns.
> var.bits_per_pixel=32
> var.transp.length = 0.
>
> So the mplayer thinks we are in 24 bit mode (maybe this is bug in  
> mplayer,
> because bits_per_pixel is 32).
>
> But next I have checked it with kernel vesafb and for same mode
> (1280x800-32, vga=0x362 )
> The fb ioctl returns
> var.bits_per_pixel=32
> var.transp.length = 8.
>
> So is this intentionally made so. Because I think this mode use only  
> red,
> green,blue and no transp. But for one pixel you must write 4 bytes.  
> (so
> transp is not used).

Hmm, if I remember correctly from running mplayer in the early days of  
kms mplayer has two fbdev drivers and I think that only #2 worked. It  
did worked back then but it was a long time ago. Heck it was one of  
the first things we demoed kms with.

Cheers Jakob.