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I have installed FreeBSD 6.2 amd64 on my Athlon 643500+ pc. Everything is OK when working in GDE or KDE unless when I scroll with my USB mouse or even with my USB keyboard in filesystem window or for example when viewing a PDF file, which the kernel panics. Every thing(menu, clock, running applications)is freezed but mouse pointer is still active. Reboot is inevitable, though.
I appreciate if anybody suggests a solution.
Thank you.
Video Driver?
If the symptom is "crash on rapid scrolling" but no crash on slow scrolling, then it is almost certainly a video driver problem. Is there any X application that does not crash on scrolling? Your PDF viewer may overwhlem the video driver with even the simplest scrolling if it tries to do "smooth scrolling" which requires all intermediate video states to be redrawn and flushed.
Did you try quitting X
Did you try quitting X windows?
Press CTRL + ALT + backspace to do so.
If X Windows restarts, then it is not a kernel panic after all.
RE
Yes I did, but none of keyboard keys work. Only mouse movement is active. Even click doesn't work.
Thanks anyway.
ssh access?
does remote access (through ssh) still work?
if you don't have a network: i once had a solution, where a trivial program opened a serial port and listened for the byte 'both buttons pressed' of an old serial mouse, killing and restarting X if the keyboard was non-functional (but a. restarting X kills all user applications anyway and b. most of these restarts occured on testing the device...).
better exchange the X driver or retune or exchange the hardware to not crash. possible hardware reasons: timing problems (e.g. overclocking): select the most conservative BIOS timings and watch if this fixes anything, then selectively raise values again); cooling problems: watch out for loose heatsinks or blocked airflow; power: the graphics card may need more currency for scrolling, do you have leaky capacitors (one of my boards died because of this and X crashing was the first sign)? do 3d applications or video work?