Hints for LCD configuration (S3 Aurora64V+)

Information for S3 Chipset Users : Hints for LCD configuration (S3 Aurora64V+)
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7. Hints for LCD configuration (S3 Aurora64V+)

If LCD is active the CRT will always output 1024x768 (or whatever is the _physical_ LCD size) and smaller modes are zoomed to fit on the LCD unless you specify Option "lcd_center" in the device section.

The pixel clock for this physical size (e.g. 1024x768) mode...

...can explicitly set in the config file (device section) with e.g. `Set_LCDClk 70' (resulting 70 MHz pixel clock being used for all modes when LCD is on)
...is taken from the _first_ mode in the modes line iff this mode's display size is the same as the physical LCD size
...the default LCD pixel clock of BIOS initialisation setup is used. This value is output at server startup in the line `LCD size ...' unless you're specifying a value using `Set_LCDClk ...'

If LCD is _not_ active, the normal mode lines and pixel clocks are used for the VGA output.

Whenever you switch output sources with Fn-F5, the Xserver won't get informed and pixel clock and other settings are wrong. Because of this you have to switch modes _after_ switch output sources! Then the server will check which outputs are active and select the correct clocks etc. So the recommended key sequence to switch output is

Fn-F5 Ctrl-Alt-Plus Ctrl-Alt-Minus

and everything should be ok..

on the Toshiba keypad you can first hold down Ctrl-Alt, then press `Fn' additionally before pressing Plus/Minus too to avoid to explicitly enable/disable the numeric keypad for mode switching.