Re: [Linux-fbdev-devel] [PATCH] rivafb sync polarity problem?

[Fredrik N. <no...@no...>]

> How bad is the sync problem?  

Well, I must say it's pretty bad. It's a digital kind of TV - so
either you'll get a stable nice looking image, or you'll get the
blue "no-signal" screen. I get the blue screen.

But there is a strange mode in the TV where I can see the RGB signal
from the computer using the sync from the RF-input. Using this, at
least it seems the frequencies are reasonably correct.

> It's possible that your horizontal timings is not divisible by 8?  
> Ie., your hsync_len is 54, but when it's written to the register, 
> it's just 48.  You might want to recalculate the numbers so you 
> use 54 or 56.

I've tried the two variants below but neither work unfortunately.

    mode "768x288"
        geometry   768 288   768 288   32
    #   timings    62500   126 80   20 2   48 2
        timings    62500   118 80   20 2   56 2
        hsync low
        vsync low
    endmode

Thanks,

	Fredrik