[PATCH] drm/mgag200: Increase bandwidth for G200se A rev1

[Roger Sewell]

Jocelyn,

>> How can I check for sure whether I am using 24 or 32 bits per pixel
>> ?
> 
> The easiest solution if you already rebuilt your kernel is to print
> the variable bpp here:
> 
> https://elixir.bootlin.com/linux/latest/source/drivers/gpu/drm/mgag200/mgag200_mode.c#L326
> 
> pr_info("mgag200 bpp %d\n", bpp);

Did that, and I get "mgag200 bpp 32".

> Also if you can run Wayland at 1440x900 at 60, that would mean the
> hardware is indeed able to handle it in 32bit.

I can indeed run Wayland at 1440x900 at 60.

So I think I'm right in saying that my graphics chip can handle
1440x900 at 60 with 32 bits per pixel.

However, while searching /var/log/messages for the bpp output above, I
also found these two lines:

/usr/libexec/gdm-x-session[2366]: (==) modeset(0): Depth 24, (==) framebuffer bpp 32
/usr/libexec/gdm-x-session[2366]: (==) modeset(0): RGB weight 888

in case it makes a difference.

Thanks,
Roger.