LVM encrypted, screen turned off after grub

[Fabio Marconi]

Hallo
Not reproducible in VM.
Testing Ubuntu server mad64 20120727 and 20120817.1:
Performing an installation of lvm encryption at the reboot the screen is switched off just after grub.
To have the system working we need to remove, from the boot line, the splash entry.
Doing so we will have the passphrase request in a black screen.
If instead we remove the vt_handoff entry the splashscreen will be shown, but the passphrase request will appear in a bad position at the center of the screen on a background purple with Ubuntu 12.10 written.
Thanks
Fabio

ProblemType: BugDistroRelease: Ubuntu 12.10
Package: debian-installer (not installed)
ProcVersionSignature: Ubuntu 3.5.0-6.6-generic 3.5.0
Uname: Linux 3.5.0-6-generic x86_64
ApportVersion: 2.4-0ubuntu5
Architecture: amd64
CurrentDmesg:

Date: Fri Jul 27 20:55:20 2012
InstallationMedia: Ubuntu-Server 12.10 "Quantal Quetzal" - Alpha amd64 (20120727)
Lsusb:
 Bus 001 Device 003: ID 0718:0628 Imation Corp.
 Bus 002 Device 002: ID 046d:c050 Logitech, Inc. RX 250 Optical Mouse
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MemoryUsage:
 total used free shared buffers cached
 Mem: 1985600 216656 1768944 0 11496 106364
 -/+ buffers/cache: 98796 1886804
 Swap: 2031612 0 2031612
ProcEnviron:
 LANGUAGE=en_US:en
 TERM=linux
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 nouveaufb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.5.0-6-generic root=/dev/mapper/hostname-root ro quiet
SourcePackage: debian-installer
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/03/2005
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P1.50
dmi.board.asset.tag: 00000000
dmi.board.name: K8NF4G-SATA2
dmi.board.version: 1.00
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.50:bd11/03/2005:svn:pnK8NF4G-SATA2:pvr1.00:rvn:rnK8NF4G-SATA2:rvr1.00:
dmi.product.name: K8NF4G-SATA2
dmi.product.version: 1.00
---
Architecture: amd64
DistroRelease: Ubuntu 12.10
Package: plymouth 0.8.4-0ubuntu1
PackageArchitecture: amd64
ProcEnviron:
 TERM=linux
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Uname: Linux 3.5.0-10-generic x86_64
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Ubuntu QA Website (ubuntuqa)]

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/1030094

[Brian Murray (brian-murray)]

That sounds more like a plymouth issue to me than one with debian-installer.

[Steve Langasek (vorlon)]

please run 'apport-collect 1030094' from the affected system.

[Fabio Marconi (fabiomarconi)]

Hallo Steve
the attached files are from a fresh installed system that reproduce the bug, but apport-collect was run from the unlocked system.
To unlock, simply boot a live session and on nautilus click on the disk, insert the passphrase, reboot and plymouth is now shown requesting passphrase.
During the live session I've tried to look if there was something logged but there's no syslog or kern.log inside, just few unuseful things.
The system lock down just after grub, without the possibility to have a console, only sysrq key working, ssh impossible.
Thanks
Fabio

[Fabio Marconi (fabiomarconi)]

apport information

[Fabio Marconi (fabiomarconi)]

probably a dup of bug 1020607 , but still cannot understand why plymouth is present in a server installation, I cannot see it in any other modality .

[Fabio Marconi (fabiomarconi)]

Damn, rebooted and it won't work again

[Steve Langasek (vorlon)]

Strangely, the apport-collect didn't attach any of the extra information I was looking for (in particular, things like the value of ProcFB). You mention that you think this might be a duplicate of bug #1020607. Was that bug report filed from the same machine?

[Fabio Marconi (fabiomarconi)]

Hallo Steve
yes, this is the same machine.
Is also the machine that have bug 1008684 , shipping an integrated nvidia geforce 6100.
This problem is present from the firsts releases of Quantal.
Thanks
Fabio

[Steve Langasek (vorlon)]

Copied over the ProcFB setting from that other bug, then; it's *possible* that there's a bug preventing the fb driver from loading and that this is the problem you're seeing, but I think this is unlikely. The lspci certainly shows that the nouveau driver is loaded.

What we can't easily see from this bug report is what plymouth themes are configured / in use. Any of this information that you can get manually from the install in question would be helpful.

In bug #1042225, Felix Geyer suggests that his bug might be a duplicate of this one. When you hit the black screen on boot, can you confirm whether hitting Esc brings up the text prompt, and whether hitting it a second time brings up the splash screen?

[Fabio Marconi (fabiomarconi)]

Hallo Steve
No, pressing Esc don't produce any effect, it still off.
In today's build the grub has the large size characters, like removing the splash entry for the linux line, but the monitor stay off.

[Fabio Marconi (fabiomarconi)]

removing the splash or the $vt7=handoff from boot line do the tricks again.
Thanks
Fabio

[Fabio Marconi (fabiomarconi)]

uhm, reproduced in 20120915 desktop amd64, but this time pressing Esc works.
---
Ubuntu Bug Squad volunteer triager
http://wiki.ubuntu.com/BugSquad

[Fabio Marconi (fabiomarconi)]

Grub menu not showed at boot, pressing Esc console appear with passphrase request to unlock sda5_crypt.
Strang thing is that it happens alternatively, one boot fail and the other works ( the time countdown for automatically boot not working, so have to choose the boot line and press enter)

[Moritz Naumann (mnaumann)]

Looks like this made it into 12.10. In my case it IS a duplicate of #1042225 and hitting escape once for the textual and twice for the graphical FDE password prompt works for me. I've upgraded from 12.04 (and before this I've been following stable releases). Removing the VT handoff option off the kernel line at boot makes the graphical prompt appear without screen blanking / the display switching to power saving / standby mode.

If you need more details please let me know.

[Shevek (r-launchpad-anarres-org)]

Affects Thinkpad T420s with dual graphics, both in dual-graphics mode and in discrete-only (NVidia) mode.

Does not affect same hard drive on Thinkpad T430s.

[Thue Janus Kristensen (thuejk)]

I have what I believe is the same problem. I have an Ubuntu 12.04 with encrypted filesystem, which started displaying the problem after upgrading to 15.04.

Bizarrely, the screen turns on and correctly shows the encryption password prompt if I hit the "down" arrow on the keyboard, but not when hitting any other key.