David, ] I don't think the SDL library is the problem. I think there must be some requirement in SDL that the display has someone logged in. Maybe because there is no window manager that can be opened until an authorized login has taken place. I.e., a privilege violation.
My SIMH VAX has no need for a graphics head. But, it seems the SDl failure kills the VAX before it gets to the configuration and run command. I think an SDI failure might disable a VAX graphics head, but it should not stop a VAX without a graphics head from running. I was hoping there was a command-line switch that would override this. I think my last resort might be to rebuild SIMH VAX without graphics support and try to run that. That would save me an hour's drive each way to work and back. Larry Baker US Geological Survey 650-329-5608 ba...@usgs.gov ________________________________ From: Hittner, David T [US] (MS) <david.hitt...@ngc.com> Sent: Thursday, May 28, 2020 2:01 PM To: Baker, Lawrence M <ba...@usgs.gov>; simh@trailing-edge.com <simh@trailing-edge.com> Subject: [EXTERNAL] RE: Can't start VAX from SSH 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-boun...@trailing-edge.com> On Behalf Of Baker, Lawrence M Sent: Thursday, May 28, 2020 4:48 PM To: simh@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 ba...@usgs.gov<mailto:ba...@usgs.gov>
_______________________________________________ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
