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If you are reconfiguring an existing installation, make sure to select Keep keep from the options at the top of the setup box or all packages will be reinstalled.
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From the command-line, if the "&" is placed after the command (as above), the shell will not "hang" and you can continue to do work in it. Otherwise, you will have to wait for the application to finish. This can useful, because using the Ctrl-C escape sequence will kill the application, which can be useful if it hangs.
Other example X programs that come with XFree86.
| No Format |
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xmag
oclock
bitmap
xcalc
xeyes
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Using X from Remote Clients with SSH
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On the remote side, all applications that use GL need to be compiled to support it (along with X11, obviously). For instance, Qt 3 and 4 have has OpenGL support enabled by default on Linux. I know wxWidgets does, too, and probably GTK. I have not tried Java 3D, yet.