On Wed, 15 Jun 2022 16:20:01 +0200 Joe <j...@jretrading.com> wrote:
> On Wed, 15 Jun 2022 09:21:58 +0100 > Mick Ab <recoverymail123...@gmail.com> wrote: > >> I have a fairly new desktop PC running Debian 11. Recently >> there have been a few occasions when the PC has failed to >> be woken up in the morning after being left overnight. >> The mouse and keyboard are frozen. Sometimes the monitor >> appears to be off and on one occasion it was on. >> >> A hard reboot has been used to reset the PC, but it is not a good >> idea to keep doing that. >> >> There is also a worry that if there is a hardware fault, the >> situation might get worse over time. >> >> Has anyone any idea as to what may be causing the problem and what >> would be the best way to try and solve it ? >> >> I anticipate it might be difficult to solve the problem given that >> the fault is intermittent. > > The usual recommendation for a first test is to see whether there > is any network activity e.g. response to ping or ssh. Also try > Ctrl-Alt-F3 to see if a console is reachable as X might have problems. If you can ssh into the machine from elsewhere, you can at least do an "su reboot" and get an orderly shutdown. > Have you checked logs to see whether there is anything suspicious > before the freeze? If there isn't, the odds are in favour of a > hardware failure. > > If that looks to be the case, I'd open up the machine (assuming it's > not under warranty, if it is, it's someone else's problem) and reseat > all the movable connectors and RAM. There's less chance of contact > problems with SATA than with the big old PATA connectors, but it's not > impossible. 'Fairly new' it may be, but connectors which aren't locked > can be jarred half-way out by transport. We can probably rule out a > build-up of dust yet, but if the machine is very quiet, and modern > machines tend to be, the fan might have died. There will be a lot more > troubleshooting tips around the Net. Those are all good tips. One more thing: are you running xscreensaver? As wonderful as it is, it is notoriously unforgiving of poorly-written drivers. I have nVidia graphics cards, and for some time I was getting all sorts of lockups using the nouveau driver. Switching to nVidia's proprietary driver solved the problem. -- /~\ Charlie Gibbs | "Some of you may die, \ / <cgibbs@kltpzyxm.invalid> | but it's a sacrifice X I'm really at ac.dekanfrus | I'm willing to make." / \ if you read it the right way. | -- Lord Farquaad (Shrek)