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Re: recovering from X freeze




On Mon, 13 Dec 1999, Tzafrir Cohen wrote:

> Yesterday X decided to freeze on me - the display froze, and the keyboard
> did not respond. It seemes to be a probelm with my X server (XFcom_i740),
> since a rectangle on the screen was misplaced as it froze.

Why do you not  use XFree 3.3.5 ? I believe it is a more  recent version.

> Anyway - I logged in from another station,and saw that X was taking 90%
> cpu time . I tried killing X. X was killed, but the console remained
> frozen (and the display has not changed).
> 
> The only thing I have managed t change was that when I ran startx again
> (from the remote session) - it cleared my screen, but nothing more.
> 
> Anyway - my question is: Is there any way of recovering from such a thing
> other than reboot?

To restore the video mode - try the programs mode3 and vga_reset from a
recent svgalib (1.4.1 pre-release). Look  also  at x86emu (somewhere in
ftp.scitechsoft.com).
To restore the keyboard to unraw mode, either kbd_mode, or alt-sysrq-r.
You can also kill X locally, with alt-sysrq-k, but then, you will need to
login  (and run mode3) blindly.
 



-- 
Matan Ziv-Av                          matan@svgalib.org


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