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Chapter 5 5
Using the X Server
5.1 Interacting with the X Server
When you use an X-based GUI, almost all of your interaction is with client programs
and not with the X server itself. However, there are a few keystroke combinations
that are directly recognized by the server, and there are some features of the X
server??”such as the clipboard??”that are accessible from a number of clients. This
chapter covers the use of these features.
5.2 Changing Resolution On-the-Fly
The X.org and XFree86 X servers permit you to change between selected resolutions
dynamically. The virtual screen size does not change, so any resolution that is lower
than the virtual resolution will result in a scrolling screen:
??? To go forward in the list of resolutions, press Ctrl-Alt-Plus (on the keypad).
??? To go backward in the list of resolutions, press Ctrl-Alt-Minus (on the keypad).
The resolutions are taken from the Modes entry in the X server configuration (Screen
section, Display subsection), or the modes reported by your monitor during probing.
For example, your Modes entry might look like this:
Modes "1280x1024" "1024x768" "800x600" "640x480"
In this case, Ctrl-Alt-Plus will reduce the resolution in steps to 640 ?— 480, then cause
it to jump to 1280 ?— 1024; Ctrl-Alt-Minus will increase it in steps to 1280 ?— 1024,
then jump to 640 ?— 480.
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