I have been experiencing this issue for weeks, ever since plumouth 0.9.0 landed. I've discussed it with Alan Pope and Steve Langasek. I've just tried installing stock Ubuntu 14.10 Beta 2 desktop i386 on the following systems and selected full disk encryption on all of them during the install:
* Thinkpad T43p (ATI/AMD graphics chipset, open source driver) - On reboot my pass phrase is not accepted.
* Thinkpad X61s (Intel graphics chipset, open source driver) - On reboot I can enter my pass phrase.
* VirtualBox Guest (no virtualbox-guest-* modules installed) - On reboot my pass phrase is not accepted.
Therefore I suspect this issue is in someway releated to the graphics driver. The following bug raised against Plymouth also describes the same issue.
I have been experiencing this issue for weeks, ever since plumouth 0.9.0 landed. I've discussed it with Alan Pope and Steve Langasek. I've just tried installing stock Ubuntu 14.10 Beta 2 desktop i386 on the following systems and selected full disk encryption on all of them during the install:
* Thinkpad T43p (ATI/AMD graphics chipset, open source driver) - On reboot my pass phrase is not accepted.
* Thinkpad X61s (Intel graphics chipset, open source driver) - On reboot I can enter my pass phrase.
* VirtualBox Guest (no virtualbox-guest-* modules installed) - On reboot my pass phrase is not accepted.
Therefore I suspect this issue is in someway releated to the graphics driver. The following bug raised against Plymouth also describes the same issue.
* https:/ /bugs.launchpad .net/ubuntu/ +source/ plymouth/ +bug/1359689
The other concern is users running 14.04 with full disk encrpytion and who then upgrade to 14.10 could effectively brick their computer.