Graceful shutdown with cleanup #1989
Description
After generating some images during the day, if I don't reboot my machine before a gaming session, weird errors happen, mostly glitching out the display and hanging the window manager.
I can 100% reproduce this when, after generating images, I close the web frontend and send CTRL+C to the generation process ("Press any key" ends the process) and start older 3D accelerated games like Everquest.
It seems that the model and maybe other data is not cleanly unloaded from the graphics card, leaving it in an unstable state.
I'd like to have a "Graceful Shutdown" button in the web interface that cleans up everything in GPU memory and leaves it in a clean, unbroken state.
So far the only way to avoid a REISUB (Linux Mint, on a freeze I can't even start a new session/console) is to reboot my machine after generating/before gaming.