Public bug reported:
After upgrading from 14.10 to 15.04, I can no longer boot my machine
normally. After the GRUB screen, some things load as they should, then
the screen turns all black (no cursor, and no backlight), and though I
hear the Ubuntu login "drum sound" played, the screen is just black and
no login dialog is shown.
If I boot into recovery mode, then select "resume normal boot", I do not
experience this issue, and the login screen is shown, and I can login
and use the machine, although the resolution of the screen is not good,
and I can't select others from the control center.
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: plymouth 0.9.0-0ubuntu9
ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
Uname: Linux 3.19.0-15-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
CurrentDesktop: GNOME-Flashback:Unity
Date: Fri Apr 24 00:21:31 2015
DefaultPlymouth: /lib/plymouth/themes/ubuntu-logo/ubuntu-logo.plymouth
EcryptfsInUse: Yes
InstallationDate: Installed on 2012-10-25 (910 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MachineType: ASUSTeK COMPUTER INC. K55VM
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-15-generic
root=UUID=ae02b482-170e-439e-9b28-1eeab977ff19 ro recovery nomodeset
intel_pstate=enable
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-15-generic
root=UUID=ae02b482-170e-439e-9b28-1eeab977ff19 ro recovery nomodeset
intel_pstate=enable
SourcePackage: plymouth
TextPlymouth: /lib/plymouth/themes/ubuntu-text/ubuntu-text.plymouth
UpgradeStatus: Upgraded to vivid on 2015-04-23 (0 days ago)
dmi.bios.date: 05/23/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: K55VM.206
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: K55VM
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrK55VM.206:bd05/23/2012:svnASUSTeKCOMPUTERINC.:pnK55VM:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnK55VM:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.name: K55VM
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
** Affects: plymouth (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug vivid
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https://bugs.launchpad.net/bugs/1447838
Title:
Boot fails: black screen after GRUB, no login
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