Some time ago after a Linux upgrade, my HP 6005 Desktop Pro stopped powering off after doing a shut down. I’d either have to hold the power button for several seconds or reach back and pull the plug. I’ve been unplugging it after shutdown and plugging it back in. It’s a bit inconvenient. By the way, it powered down fine before the upgrade.
I’ve searched for a solution and tried various fixes but nothing so far has worked. I really can’t recall all the fixes I’ve attempted. Today I did some more research and found a couple of ideas I don’t think I’ve tried before. Maybe I have but they didn’t look familiar.
One that looks promising is installing acpi support. I may have tried this before but it’s worth a shot.
Another involved removing an if statement from /etc/init.d/halt. I’m sure I haven’t tried that one before.
I’ll comment with the results. Wish me luck.