On one older 32-bit machine, aiglx sort of works, but not well, and glx makes an unreadable desktop. GLX was turned on and it always boots with an unreadable login screen. I can ssh to the machine from another box and stop/start xdm.
Using the command line, how do I disable the glx? What config file do I need to edit and what do I need to change? Is there a way to do a "safe mode" boot so I can run the acceleration manager and disable it?
I did try to do ssh -X machine in hopes of running acceleration-manager by remote X, but I don't have that properly configured yet, and it couldn't find a display tunnel.
How do I do this without having to reinstall?