On my desktop, a certain desktop produced by a popular linux system reseller manufactured a couple of years ago, modern ubuntu seems to just reboot the machine

On my desktop, a certain desktop produced by a popular linux system reseller manufactured a couple of years ago, modern ubuntu seems to just reboot the machine when I select 'suspend'. So I leave it on all the time. An annoyance, for sure. I have hopes that it will work better in the next LTS release of ubuntu. On my T430 laptop, suspend seems to work when I close the lid just fine.