Re: TGX Plus on sun4c (IPX) problem

[Michael <macallan1888%gmail.com@localhost>]

Hello,

On Sun, 14 Sep 2025 11:51:59 +0200
Romain Dolbeau <romain%dolbeau.org@localhost> wrote:

> Le mar. 9 sept. 2025 à 22:36, vom513 <vom513%gmail.com@localhost> a écrit :
> > Just got another TGX+.  This is specifically the 501-2955 revision.  I am trying this in my IPX.  I set “output-device screen:r1280x1024x76” - and I can tell the OBP console comes up in this res.
> > However trying to boot NetBSD 10.1 - the kernel spins its numbers, and as soon as it would have started displaying boot info - the monitor resyncs (?) and the screen goes white.  No disk activity after this.  I can only assume it’s locked up.  
> 
> Tried it too:
> 
> IPX with 64 MiB (4x16 SIMMs), same 2.9 PROM, netbsd 9.0 GENERIC kernel:
> * console on onboard GX: works fine
> * console on TGX+ 501-2253 in slot 1 (if 3 is onboard?): same symptoms as you!

There goes my status register theory.

> So it's not your system only or the 501-2955 in general, it seems to
> be a more general issue.
> (this 501-2253 is known to work in a SS20).

Does it lock up if you boot with the console on the onboard GX and the
TGX+ present? If not, what happens if you send something to /dev/ttyF0?

have fun
Michael