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?

[Liam Proven]

On Thu, 2 Jul 2020 at 08:11, 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?

Some troubleshooting tips...

Try the magic REISUB key combination.
https://en.wikipedia.org/wiki/Magic_SysRq_key

Update your motherboard firmware.

Is it a desktop or a laptop?

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