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Re: PowerMac 9600 video questions



On 2 Feb 2002, Michel Dänzer wrote:

> On Mit, 2002-01-30 at 14:01, Eric Deveaud wrote:
> >
> > 	PowerMac 9600
> > 	video card IMS Twin Turbo (IMS,tt128mb8A)
> > 	booted with BootX
> > 	kernel 2.4.18-pre7-ben0 with CONFIG_FB_IMSTT=y
> > 	booted with BootX
> >
> > 1) when giving extra kernel argument video=imsttfb
> > with or without "force video setting"
> > the machine boots fine, but after the few first kernels messages
> > the screen goes black.... I don't see any kernel boot messages, I have
> > to type blinkly.. or ssh the machine in order to reboot
>
> Anything from imsttfb in the kernel output? Maybe you have to tell it the
> mode to use?

I'll try to pass some mode.

> > 2) setting XF86Config-4 to use
> > Driver		"imstt"
> > VideoRam 	8192    # the 9600/350 comes with 8Mb on card
> >
> > and startx gives me something like uper half screen with a kind of
> > display the other (lower half) black.
> > furthermore, the upper half part is cutted in 2 parts (left rigth)
>
> Is this the same for all depths?

it vary following deep and screen-size requested.

> > furthermore /var/log/XFree86.log tells me the following
> > (--) imstt(0): probed videoram = 3072k
>
> It would be interesting to know what imsttfb thinks about this. :)

I would like to know to...

> I don't know the status of the imstt driver on powerpc; it could be
> plain broken. You could also try the fbdev driver.

fbdev allows me to use 1200*1024 at deep 15.
deep 24 hangs, and deep 16 complety screw up the color map.

	Thank's for your input.

	Eric

-- 
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