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| | The Linux keyboard and console HOWTO |
 | | However, Linux had 16 entries per key (one for each combination of the Shift, AltGr, Ctrl, Alt modifiers) and presently has 256 entries per key, while X has 4 entries per key (one for each combination of Shift, Mod), so some information is necessarily lost. |
 | | The bindings for the "action keys" Show_Memory, Show_State, Show_Registers, Last_Console, Console_n, Scroll_Backward, Scroll_Forward, Caps_On and Boot are ignored, as are the dead diacriticals, and the locks (except for ShiftLock), and the "ASCII-x" keys. |
 | | The two keys PrintScrn/SysRq and Pause/Break are special in that they have two keycodes: the former has keycode 84 when Alt is pressed simultaneously, and keycode 99 otherwise; the latter has keycode 101 when Ctrl is pressed simultaneously, and keycode 119 otherwise. |
| www.faqs.org /docs/Linux-HOWTO/Keyboard-and-Console-HOWTO.html (8949 words) |
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