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Message #41344
[Bug 1270656] Re: Ubuntu 14.04 boots to blank console
The apport data from comment #11 shows a virtual machine on VMWare.
Looking at the first dmesg log, there seems to be some kind of resource
conflict between the simple-framebuffer driver and vmwgfx. For testing
you could probably try to create a file like /etc/modprobe.d/blacklist-
testing.conf with a line "blacklist vmwgfx" in it. That should give some
console (maybe not the most performant).
[ 0.782125] simple-framebuffer simple-framebuffer.0: framebuffer at 0xe8000000, 0x1d5000 bytes, mapped to 0xffffc90008380000
[ 0.782128] simple-framebuffer simple-framebuffer.0: format=a8r8g8b8, mode=800x600x32, linelength=3200
[ 0.784093] Console: switching to colour frame buffer device 100x37
[ 0.785022] simple-framebuffer simple-framebuffer.0: fb0: simplefb registered!
...
[ 21.258191] vmwgfx 0000:00:0f.0: BAR 1: can't reserve [mem 0xe8000000-0xefffffff pref]
[ 21.258193] [drm] It appears like vesafb is loaded. Ignore above error if any.
[ 21.258469] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 21.258471] [drm] No driver support for vblank timestamp query.
[ 21.259320] [drm] Screen objects system initialized
[ 21.259325] [drm] Initialized vmwgfx 2.4.0 20120209 for 0000:00:0f.0 on minor 0
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https://bugs.launchpad.net/bugs/1270656
Title:
Ubuntu 14.04 boots to blank console
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
Ubuntu 14.04 as of 22:00 o'Clock Jan, 19th 2014 boots into blank console.
Ctrl-Alt-F{1..6} does nothing or all consoles are blank, but "ps axf" shows /sbin/getty running on tty{1..6}:
# ps axf | grep tty
880 tty4 Ss+ 0:00 /sbin/getty -8 38400 tty4
885 tty5 Ss+ 0:00 /sbin/getty -8 38400 tty5
890 tty2 Ss+ 0:00 /sbin/getty -8 38400 tty2
891 tty3 Ss+ 0:00 /sbin/getty -8 38400 tty3
893 tty6 Ss+ 0:00 /sbin/getty -8 38400 tty6
4290 pts/1 S+ 0:00 \_ grep --color=auto tty
1093 tty1 Ss+ 0:00 /sbin/getty -8 38400 tty1
Removing deprecated "vga=768" from kernel commandline => doesn't boot into 800x600, keeps 640x480
Settings
GRUB_GFXMODE=800x600
GRUB_GFXPAYLOAD=800x600
are ignored.
Grub boots up with 800x600, switches back to 640x480 (setting
GRUB_GFXPAYLOAD to "keep" it is the same) kernel doesn't switch back
to 800x600.
Adding deprecated "vga=768" back in:
Grub boots up with 800x600, switches back to 640x480, kernel switches back to 800x600, but doesn't use this console. No output at all. Keys are accepted (you can login, but you'll have to guess what is going on on the screen).
Exactly the same error is found with debian. Switching to a self
compiled kernel solves this error. Looks a lot like some necessary
stuff for console resolution switching is missing in the debian
-/ubuntu-kernels.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: util-linux 2.20.1-5.1ubuntu13
ProcVersionSignature: Ubuntu 3.13.0-4.19-generic 3.13.0-rc8
Uname: Linux 3.13.0-4-generic x86_64
ApportVersion: 2.13.1-0ubuntu1
Architecture: amd64
Date: Mon Jan 20 00:20:36 2014
InstallationDate: Installed on 2012-12-12 (403 days ago)
InstallationMedia: Ubuntu-Server 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120817.3)
ProcEnviron:
TERM=screen-bce
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=de_DE.UTF-8
SHELL=/bin/bash
SourcePackage: util-linux
UpgradeStatus: Upgraded to trusty on 2013-02-11 (342 days ago)
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