Samsung Series 5 laptop - No HDMI output no signal, Shuts down and reboots at logo

No external display

Samsung Series 5 laptop did not work with any external display through HDMI, different cables and different monitors, none worked, neither Debian nor Windows saw the display.

Solution was to connect the display to the laptop and _turn_off_ the laptop (not reboot - AC adapter connected is OK), then start the laptop. Then it detected the display and worked as expected.

Shuts down and reboots at logo

The laptop constantly shut down and restarted at the logo.

The solution was to move the boot flag for the disk from the /boot partition to the first NTFS partition. For some reason it failed to use the partition to boot on.

This is a personal note. Last updated: 2019-06-15 03:39:22.


Don't forget to pay my friend a visit too. Joakim