Recover from monitor over-settings
When messing around with different video refresh rates, you could end up with a garbled screen full of unreadable junk. To bring the video_server back to a sane state, hit Ctrl+Alt+Shift+F12. BeOS will reset the video to 640×480x8bpp.
In extreme cases, you can also fix things manually by moving drivers around. This should seldom be necessary as the above should always work, but just in case, here’s the scoop:
Reboot into the fail-safe graphics mode and delete the appropriate graphics-card driver in /boot/beos/system/add-ons/app_server, and the corresponding accelerant in /boot/beos/system/add-ons/accelerants. Reboot, and the resolution will be the default 640×480 8bpp. You should now be able to reset your resolution and color depth from the Screen preferences panel.
Posted in Miscellaneous