Magic SysRq key: Difference between revisions

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m section links don't auto-update on renaming sections! that might be useful to add to wikipedia :)
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Uses: On certain distrib, Ctrl+Alt+F1 = GUI, F2 = GUI login, F3... = text consoles
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When magic {{key|SysRq}} keys are used to kill a frozen [[display modes|graphical]] program, the program has no chance to restore [[text mode]]. This can make everything unreadable. The commands {{tt|textmode}} (part of [[SVGAlib]]) and the [[Reset (computing)|{{tt|reset}}]] command can restore text mode and make the console readable again.
 
On distributions that do not include a {{tt|textmode}} command, the key command {{key|Ctrl|Alt|F1}} may sometimes be able to force a return to a text console. (Use {{key|F1}}, {{key|F2}}, {{key|F3}}, ..., {{key|F(''n'')}}, where ''n'' is the highest number of text consoles set up by the distribution. {{key|Ctrl|Alt|F(''n''+1)}} would normally be used to reenter GUI mode on a system on which the X server has not crashed.) There are also distributions where {{key|Ctrl|Alt|F(3 to ''n''-2))}} opens text consoles, {{key|Ctrl|Alt|F1}} reenter GUI mode, {{key|Ctrl|Alt|F2}} reenter GUI mode on the login page, in order to log another user.
 
== Configuration ==