I recently switched from Zorin OS to Fedora 43 (KDE Plasma 6) on my Lenovo ThinkPad T480 (i5 8th Gen), and I’m running into a frustrating issue.
Whenever I put the laptop into sleep mode, the screen goes black and never wakes up. Pressing the power button or any key does nothing. Even holding the power button doesn’t force it off. The only way to shut it down is by using the emergency reset hole to disconnect the internal battery.
After that, it boots normally—until I try sleep mode again. I also tried shutting down instead of sleeping, but the shutdown process freezes at the Lenovo logo with the Fedora spinner below it.
For context:
• I’m on Fedora 43
• Using KDE Plasma 6
• Hardware: Lenovo ThinkPad T480, i5-8th Gen
• I reset BIOS to default settings yesterday