Messages in this thread | | | Date | Sat, 20 Jun 1998 16:30:12 -0400 (EDT) | From | Mathieu Bouchard <> | Subject | keyboard raw mode? |
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afaik, there is nothing at the kernel level to prevent a crash of the keyboard when running root or suidroot programs such as the X Server, DosEmu, SvgaLib-based programs (mostly games and demoscene stuff)...
i think i understood that those programs do not use the keyboard directly but rather ask the kernel to put it in "raw mode"? which prevents the kernel from responding to Alt+Fn, Ctrl+ScrollLock, Ctrl+Alt+Del, and the like. shouldn't we insert an exception to this to unlock the keyboard in case of emergency? Like, Ctrl+Alt+Ins or Ctrl+Alt+ScrollLock would *ALWAYS* put the keyboard back into normal mode. This could be user-configured in /proc if this doesn't bloat the kernel too much :-)
I saw the XServer crash, especially when running betas or alphas of Enlightenment and The GIMP. When it crashes, there is no way of restoring the display (e.g. by restarting it and then quitting normally??) because there is no keyboard anymore, and no mouse either because X overrides GPM (GPM has a feature for rebooting the system in case of keyboard lock, but if GPM is disabled by X, it's worthless, and anyway, the mouse is not the responsibility of the kernel).
matju
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