I test the bluetooth and I have the same noise. It's very low and I think it come near from the subwoofer. I hear much the fan.
Another trick : when I unplug my charger, the brightness don't reduce. So I add a script for pm-util : - sudo vi /usr/lib/pm-utils/power.d/brightness - Put this : #!/bin/sh case $1 in true) echo 5 > /sys/class/backlight/acpi_video0/brightness ;; false) echo 10 > /sys/class/backlight/acpi_video0/brightness ;; *) exit $NA ;; esac exit 0 - sudo chmod +x /usr/lib/pm-utils/power.d/brightness And now, it work -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/613963 Title: Kubuntu on HP Envy 17 - 1010el -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs