[Simh] Can't start VAX from SSH

[Hittner, David T [US] (MS)]

Not sure if this will be helpful or not..

The SDL video subsystem error makes me think that they put in a patch that your current version of LibSDL has a problem with, or have applied some protection to prevent LibSDL from attaching to the Mac graphics console. You might want to check to see if there is a newer and more compatible version of LibSDL for your patched system version.

Or obviously, turn off the VAX QVSS/QDSS component that requires the LibSDL library and start the VAX without the graphics head.  :-(

David

From: Simh <simh-bounces at trailing-edge.com> On Behalf Of Baker, Lawrence M
Sent: Thursday, May 28, 2020 4:48 PM
To: simh at trailing-edge.com
Subject: EXT :[Simh] Can't start VAX from SSH

I am working from home and can only SSH in to my desktop Mac at work.  Our unhelpful IT department automatically patches and reboots our system, which must have happened last night.  That terminated the SIMH VAX I left running.  Normally, I leave my desktop logged in.  Until today, I have had no trouble starting my SIMH VAX remotely.

Today, no one is logged in to my desktop.  When I SSH remotely and try to start my SIMH VAX, it fails immediately with the error message:
$ ./vax-20200419
_RegisterApplication(), FAILED TO establish the default connection to the WindowServer, _CGSDefaultConnection() is NULL.
SDL Video subsystem can't initialize
Is there any way around this short of driving to work and logging in to my desktop?


Larry Baker

US Geological Survey

650-329-5608

baker at usgs.gov<mailto:baker at usgs.gov>


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