System Management Guide: Operating System and Devices

Rebooting a System With Planar Graphics

If the machine has been installed with the planar graphics susbsystem only, and later an additional graphics adapter is added to the system, the following occurs:

1. A new graphics adapter is added to the system, and its associated device driver software is installed.
2. The system is rebooted, and one of the following occurs:
   1. If the system console is defined to be /dev/lft0 (lscons displays this information), the user is asked to select which display is the system console at reboot time. If the user selects a graphics adapter (non-TTY device), it also becomes the new default display. If the user selects a TTY device instead of an LFT device, no system login appears. Reboot again, and the TTY login screen is displayed. It is assumed that if the user adds an additional graphics adapter into the system and the system console is an LFT device, the user will not select the TTY device as the system console.
   2. If the system console is defined to be a TTY, then at reboot time the newly added display adapter becomes the default display.

      Note: Since the TTY is the system console, it remains the system console.

3. If the system console is /def/lft0, then after reboot, DPMS is disabled in order to show the system console selection text on the screen for an indefinite period of time. To re-enable DPMS, reboot the system again.