Question about Neomagic driver

[Alex Deucher]

On 8/9/07, Nolan Check <nolan.check at gmail.com> wrote:
> I have an old Toshiba Tecra 8000 laptop. The display adapter is a
> Neomagic MagicGraph256AV. My question is, does the MagicGraph256AV
> support 2D acceleration in 24-bit mode, and does the X.Org neomagic
> driver support acceleration in that mode?
>
> In a 16-bit display mode, when I move windows around on the desktop,
> it's silky smooth. In 24-bit mode, it's choppy and I can see the
> window being drawn. This makes me think there's no 2D acceleration
> active in that mode. But Windows 2000 was perfectly smooth in 24-bit
> mode, so I'm wondering if there's a hole in X.Org's support for this
> device.

IIRC, some of the neomagic chips didn't support accel in depth 24.
I'm not sure if yours was included.  It could be that none of them do
due to lack of driver support.  Check the man page or the source.

Alex