Change Passphrase for encrypted root Volume (Ubuntu / LVM / dm-crypt)
Here’s a quick list of handling the passwords / passphrases for an encrypted disk:
Here’s a quick list of handling the passwords / passphrases for an encrypted disk:
Editi /etc/lightdm/lightdm.conf and add the line:
allow-guest=false
Reboot to activate.
Source: https://answers.launchpad.net/ubuntu/+source/lightdm/+question/175756
After installing a KVM switch Ubuntu won't recognize the correct display resolution of the LCD monitor anymore. The following helps to query and set the resolution:
cvt h-resolution v-resolution [refresh]
e.g.
Update 2010-11-03: the problem isn't solved reliably … works only "sometimes". Seems to be a kernel problem, see here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/661711
The hibernation problem ("moon" LED blinks, blinking cursor in the upper left corner, no activity) is solved:
http://ohioloco.ubuntuforums.org/showthread.php?t=1601203
-> edit /etc/default/acpi-support
-> add hibernate as first item of SUSPEND_METHODS
-> reboot
The keys above left and right cursor keys are quite annoying on a T61 – they allow forward and backward switching of e.b. web pages. But usually they get pressed unintentionally… (OK, denpends on the fingers …)
Find out which keycodes they have:
start xev and press the keys:
Did an Update of Ubuntu 8.10 to 9.04 on my Eee PC 1000H using this procedure:
http://rhau.se/2009/03/27/ubuntu-904-on-the-asus-eee-pc-1000h-with-acpi-and-wifiwlan-working/