<div style="font-family: Arial, sans-serif; font-size: 14px;">My 'two cents' would be to check what GPU driver is being used, then try a different one and see if the problem repeats.<br></div><div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div>
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<div class="protonmail_signature_block-proton">Best of luck,</div><div class="protonmail_signature_block-proton">Locky<br></div>
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On Friday, March 1st, 2024 at 2:11 PM, Onno Benschop <onno@itmaze.com.au> wrote:<br>
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<div dir="ltr">Couple of things come to mind, none of them a smoking gun:<div><ul><li>If the computer is connected via HDMI and the cable is bad, all manner of fun things can happen.</li><li>Is power saving turned on somewhere and is it activating when the user does nothing?</li><li>Is the device being overloaded and is the machine freezing to protect itself from magic smoke escaping.</li><li>If the machine is unresponsive, is it unreachable through the network - ie. can you ssh into it?</li><li>dmesg -T will give you a human readable time stamped kernel log if you can get it. You might want to log it to disk using cron every minute while you're trying to discover what's wrong.</li><li>You can also log CPU/GPU temperatures to a file and see what happens.</li><li>Is the user changing video mode, or is a screensaver doing this for them?</li></ul></div></div><br><div class="gmail_quote"><div class="gmail_attr" dir="ltr">On Fri, 1 Mar 2024 at 12:09, gavinwc <<a href="mailto:gavin.chester@gmail.com" rel="noreferrer nofollow noopener" target="_blank">gavin.chester@gmail.com</a>> wrote:<br></div><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex" class="gmail_quote"><div dir="ltr">Hi folks,<div><br></div><div>Not sitting at the offending PC at the moment, so can't give any specifics on SW versions, etc at this time, sorry. </div><div><br></div><div>Running up-to-date Mint on some heavy i7 NUC HW with a Dell 27" monitor. Every now and then, usually when trying to launch some full-screen video, the monitor blanks to just the backlight glow, the NUC fan speeds up and the keyboard is unresponsive. Because of the last factor, no amount of cntrl+BS, ctrl+alt+del, or trying to open a VT works. I have to do a hard reset. Any ideas of any other HW / keyboard options I can try, or even better, if there is a setting I need to look at to prevent this happening?</div><div><br></div><div>Thanks.</div><div><br></div><div>Gavin </div></div>
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