Bug#226973: xserver-xfree86: [glint] second card at wrong resolution

[Sven Luther <sven.luther@wanadoo.fr>]

On Tue, Jan 13, 2004 at 10:40:25AM -0500, Clint Adams wrote:
> > Ok, this may be the problem. The first one is initialized by the pm2fb,
> > while the second is not. This mean either some initialization problems,
> > or the fact that X doesn't initialize some values set by pm2fb.
> 
> Sound sreasonable.

Yep. It probably doesn't happen on x86, since the int10 stuff
initializes the card with the onboard bios. Using a x86 emulator in X to
run this bios might be a solution.

> > What kernel are you using, maybe it would be best to work on a 2.6
> > kernel and try to adapt the pm2fb to the new framework or something.
> 
> Currently using Herbert's 2.4.24-1.  I tried various 2.6 kernels prior
> to 2.6.1, but xdm couldn't seem to start the server and the USB HID
> drivers didn't seem to be functional.

Mmm.

> > Can you describe me the symptoms again ? what exactly did you see on the
> > second head ?
> 
> The second head is currently running WindowMaker with the default Debian
> background.  In the upper left corner, there is the 1/Main clip.
> Directly to the right of that (I assume by 64 pixels or so) is the exact
> same 1/Main clip.  In the border between the two are some flickering

Ho. definitively some registers who are bad. It has been a long time
since i have looked at the pm2 specs (kind of 98ish i think) though.
Maybe you could get hand of the free TI-pm2 specs and look for yourself ?

You would dump all the possible registers, and see which one is
different. Enabling debugging in the glint driver would also do. You can
safely run no-accel on these for the tests, as this is definitively not
an accel issue, but a video out/ramdac one.

> white lines.  The rest of the screen is filled with horizontal
> flickering black and whitish lines.  The left edge of the swirl is on
> the right hand side of the screen.  It appears 5 times.  The "debian"
> only appears as "de", though there are about 5 d's and 3 or 4 e's,
> overlapping.  The clips themselves look perfect, but nothing else does.

Any color problem ?

Friendly,

Sven Luther