Linux On My Samsung

seems it worked, but, what does this file do? and why there isn't any option to disable usb suspension? Looks like Voria included Usb-suspend function in Samsung tool for long battery life (there was thread somewhere here). But I have the same pbm as you with my usb mouse. I have to delete this fil...

As I understand no problem when laptop works from power supply? Try to delete /etc/pm/power.d/samsung-tools_usb-autosuspend file. It helped me with the same issue.

Best regards,