Esokrates, could you try to boot your system after adding 'plymouth:debug' to the kernel command line in grub; and attaching /var/log/plymouth-debug.log; first making sure it doesn't include your passphrase for the disk encryption? If that doesn't trigger the bug, you may need to edit /etc/default/grub to add 'plymouth:debug' there and reconfigure grub.
So, after testing this for a while it looks to me like this is in fact a problem with drm, at least on radeon, and likely on nouveau as well. On my radeon system, it appears that plymouth tries to start the drm renderer and fails because it can't find the right encoder, or CRTC, to notice that the screen is lit -- that is, unless it was already lit and updated as such in drm by going through the grub menu. It asks libdrm for the available encoders, but the currently selected encoder for the connector remains 0; and if I bypass this and have it check the encoder for it's selected crtc, that value is also left at 0. It seems like upstream linux commit https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/gpu/drm/drm_crtc.c?id=abd69c55dd8f1f71b33b8c6165217f4329db8f25 should help, and in fact if I use the mainline kernel 3.19 rc1, things appear to be working properly; so I've opened a linux task for this issue. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1359689 Title: cryptsetup password prompt not shown Status in linux package in Ubuntu: Confirmed Status in plymouth package in Ubuntu: Triaged Bug description: Currently in utopic the following happens when booting an encrypted setup: Press enter in grub, after a while screen freezes (or turns completely black) and stays like that. When I press the down key, I can see the password prompt. When I press the up key again, I get to the graphical password prompt. This is demonstrated in the following screencast: https://drive.google.com/file/d/0B7EMvd1LJKgZREJocHBueEhpa2s/edit?usp=sharing Maybe this is related to the version of plymouth utopic currently uses, a similar debian bug report seems to be resolved with a newer version 0.9.0-6, see https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=752752. --- ApportVersion: 2.14.6-0ubuntu2 Architecture: amd64 DistroRelease: Ubuntu 14.10 InstallationDate: Installed on 2014-08-21 (0 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20140821) Package: plymouth 0.9.0-0ubuntu3 PackageArchitecture: amd64 ProcVersionSignature: Ubuntu 3.16.0-9.14-generic 3.16.1 Tags: utopic Uname: Linux 3.16.0-9-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True --- ApportVersion: 2.14.6-0ubuntu2 Architecture: amd64 DefaultPlymouth: /lib/plymouth/themes/ubuntu-logo/ubuntu-logo.plymouth DistroRelease: Ubuntu 14.10 InstallationDate: Installed on 2014-08-21 (0 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20140821) MachineType: Dell Inc. Precision M4600 Package: plymouth 0.9.0-0ubuntu3 PackageArchitecture: amd64 ProcCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-9-generic root=/dev/mapper/VG--Ubuntu-LV--Ubuntu--ROOT ro rootflags=subvol=@ cryptopts=target=Ubuntu,source=/dev/disk/by-uuid/6fc200da-aa04-4e73-b6a7-a2326f0b6204,lvm=VG-Ubuntu quiet splash vt.handoff=7 ProcFB: 0 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-9-generic root=/dev/mapper/VG--Ubuntu-LV--Ubuntu--ROOT ro rootflags=subvol=@ cryptopts=target=Ubuntu,source=/dev/disk/by-uuid/6fc200da-aa04-4e73-b6a7-a2326f0b6204,lvm=VG-Ubuntu quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.16.0-9.14-generic 3.16.1 Tags: utopic TextPlymouth: /lib/plymouth/themes/ubuntu-text/ubuntu-text.plymouth Uname: Linux 3.16.0-9-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True dmi.bios.date: 03/10/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A14 dmi.board.vendor: Dell Inc. dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA14:bd03/10/2013:svnDellInc.:pnPrecisionM4600:pvr01:rvnDellInc.:rn:rvr:cvnDellInc.:ct9:cvr: dmi.product.name: Precision M4600 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1359689/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
