Hi, I now i'm a little late but i didn't see this bug before. I have a workaround for this bug.
open your text editor code : gksudo gedit /etc/pm/sleep.d/04-backlight.sh for ubuntu or kdesudo kate /etc/pm/sleep.d/04-backlight.sh for kubuntu and paste this inside #!/bin/bash case $1 in resume) sleep 2 echo 1 > /sys/class/backlight/acpi_video0/brightness ;; esac Then save and make the script executable with sudo chmod +x /etc/pm/sleep.d/04-backlight.sh in a terminal The screen will not stay black anymore after suspend/resume cycle. You can use also the fn+F9 keys to increase the brightness manualy if the screen is black after a suspend resume cycle. That's it. Tasev Nikola ** Changed in: linux (Ubuntu) Status: Expired => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. https://bugs.launchpad.net/bugs/411356 Title: [FUJITSU SIEMENS AMILO Si 2636] suspend/resume failure -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs