encrypted LVM desktop does not boot with cirrus driver (no password prompt)

Bug #1169621 reported by Jamie Strandboge on 2013-04-16
14
This bug affects 2 people
Affects Status Importance Assigned to Milestone
plymouth (Ubuntu)
High
Unassigned

Bug Description

I'm not sure if this is a plymouth bug or xserver-xorg-video-cirrus, but if I install 13.04 on a kvm VM (via libvirt) with the cirrus video driver using the livecd (server install is ok) and choose to encrypt the entire disk, on reboot I get a flash of purple then it goes to a black screen. I thought it might be just that the prompt was not displayed, but typing the password simply echoes the password to the screen and does not open LUKS.

Any of the following works around the issue:
 * use the vmvga driver instead of cirrus
 * adding nomodeset to the kernel command line
 * removing splash from the kernel command line

If I remove 'quiet', then the boot stops (see attached screenshot).

Jamie Strandboge (jdstrand) wrote :
summary: - encrypted LVM desktop does not but with cirrus driver (no password
+ encrypted LVM desktop does not boot with cirrus driver (no password
prompt)
Changed in plymouth (Ubuntu):
importance: Undecided → High
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in plymouth (Ubuntu):
status: New → Confirmed
Ubuntu QA Website (ubuntuqa) wrote :

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1169621

tags: added: iso-testing
Hans de Vries (tijdelijk386) wrote :

With Lubuntu 14.10 and Radeon same problem. Work around by deleting the splash option in the Grub command line.

Edit /etc/default/grub
Change:
#GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX_DEFAULT="quiet"

Now an old fashion text message appears and the passphrase can be entered.

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