I recently bought a new (used) laptop, a Lenovo Thinkpad T430, and decided to install Linux Mint with KDE on it. I used to use Cinnamon but decided to give KDE a chance because I’ve used KDE apps before and they’re the finest.
It’s been running fine since then except, I’ve had this problem where once in a month or so, when I close the lid, the laptop sleeps for a second and then wakes up instantly. First I thought it was a kernel issue, so I updated the kernel and that fixed that somehow. So I kept using it but then again in about a month it happened again. I updated the kernel again, it went away. Then today morning it happened again. By now I’m pretty sure that it’s not a kernel issue. Something is stopping the system from falling into sleep. So I looked in to syslog and looked for logs around the time the wake up happened to see if there is any error logged there. I didn’t find any error and the log looked like this -
