How can I investigate the cause of total hang? Is there some information that I should pay attention to in order to get some hint?

[Colin Law]

On Thu, 2 Jul 2020 at 07:11, 孙世龙 sunshilong <sunshilong369 at gmail.com> wrote:
>
> Hi,
>
> My x86 machine sometimes hangs, suddenly not responding in
> any way to the mouse or the keyboard.
>
> How can I investigate the cause of total hang? Is there some
> information that I should pay attention to in order to get some hint?

Does the Caps Lock light still go on and off when you hit the key?  If
not then the machine has probably crashed completely.
On reboot look in /var/log/syslog to see what it says.

Colin

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