** Changed in: linux (Ubuntu)
Status: Incomplete = Fix Released
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https://bugs.launchpad.net/bugs/1270656
Title:
Ubuntu 14.04 boots to blank console
Status in
Thank you for taking the time to file a bug report on this issue.
However, given the number of bugs that the Kernel Team receives during
any development cycle it is impossible for us to review them all.
Therefore, we occasionally resort to using automated bots to request
further testing. This is
Seems fixed now
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Title:
Ubuntu 14.04 boots to blank console
Status in “linux” package in Ubuntu:
Confirmed
Status in “linux”
With my laptop the problem is gone using my self compiled kernel or the latest
one from Ubuntu. It is there using some older kernels. I had to carefully
adjust vga=xxx to switch to the very same mode than gfxpayload set to
1280x800@32. Took some time and playing around until it worked as
As far as I remember we changed CONFIG_DRM_VMWGFX_FBCON to 'y ' now. Generally
it is getting more complicated nowadays. Grub2 initializes some framebuffer
graphics mode (unless console mode is enforced in /etc/default/grub), hands
this fb over to plymouth and that hands things over to X. And
Looks like since the later updates the bug seems gone -- at least for vmwares
graphics drivers.
On an other system running on real hardware the bug seems gone too.
I'll check later today on my laptop -- hopefully it is history there
too!
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I have the same problem. On hardware.
LTS 14.04
GeForce GTX 750
If I enter grub menu choose Advanced Options For Ubuntu
Then doing nothing and normally load the system resulting ctrl+alt+F0-F6
becomes working and I see login prompt on text consoles.
Text consoles worked before with the same
I had the same problem, but I fixed it by commenting these lines:
# if ([ $ubuntu_recovery = 0 ] || [ x$type != xrecovery ]) \
# ([ x$GRUB_GFXPAYLOAD_LINUX != x ] || [ $gfxpayload_dynamic = 1 ]);
then
# echogfxmode \$linux_gfx_mode | sed s/^/$submenu_indentation/
# fi
in
Ok so with those there seems to be some resolution lines which get
repeated three times with the Ubuntu kernel (which is odd) and compared
to the self-compiled kernel there seems to be no action to replace the
framebuffer.
Could you try to boot the Ubuntu kernel with vmwgfx.enable_fbdev=1
added
With this kernel-option I'll get a console prompt, but various kernel
log lines are never prinited on screen.
Printing stops at about [ 54.811735] [drm] DMA map mode: Using
physical TTM page addresses. and then starts again after a screen size
change at about [ 57.317174] intel_rapl: domain
Since today a new version of open-vm-tools is available. I've tested
again with this new version. Some of the errors seen with the old
version are gone now.
** Attachment added: New version of open-vm-tools
Not sure which errors are gone now. The line related to drm and vmwgfx are like
the previous no blacklisting and no setting fbdev dmesg to me. Again repeating
the resolution and FIFO line and not replacing the framebuffer.
How the user-space tools would influence the kernel boot I cannot
** Attachment added: blacklisted vmwgfx
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1270656/+attachment/3954400/+files/dmsg-201401221456.txt
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** Attachment added: blacklist simple-framebuffer
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1270656/+attachment/3954401/+files/NC158_u1404-x86_64%20-%20VMware%20Workstation_036.jpg
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There are slightly differences in character display depending on which
driver is blacklisted.
With my own kernel I could recognize changes in character display while
booting.
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** Attachment added: blacklist simple-framebuffer -- own kernel
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1270656/+attachment/3954416/+files/NC158_u1404-x86_64%20-%20VMware%20Workstation_037.jpg
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** Attachment added: none blacklisted
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1270656/+attachment/3954404/+files/dmsg-201401221500.txt
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** Attachment added: none blacklisted
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1270656/+attachment/3954403/+files/NC158_u1404-x86_64%20-%20VMware%20Workstation_037.jpg
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** Attachment added: blacklisted vmwgfx
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1270656/+attachment/3954399/+files/NC158_u1404-x86_64%20-%20VMware%20Workstation_035.jpg
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** Attachment added: blacklist vmwgfx -- own kernel
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1270656/+attachment/3954415/+files/dmsg-201401221458.txt
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** Attachment added: blacklist simple-framebuffer -- own kernel
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1270656/+attachment/3954417/+files/dmsg-201401221500.txt
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** Attachment added: blacklist simple-framebuffer
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1270656/+attachment/3954402/+files/dmsg-201401221458.txt
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** Attachment added: none blacklisted -- own kernel
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1270656/+attachment/3954405/+files/NC158_u1404-x86_64%20-%20VMware%20Workstation_035.jpg
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Blacklisting simple-framebuffer for the Ubuntu kernel will have no
effect because it is built-in. But I am interested in the two dmesg's
without any blacklisting to compare the output. Somehow those labelled
as own kernel seem to be from a boot with the normal Ubuntu kernel, too.
Just the wrong
** Attachment added: dmesg-log from Ubuntu-Kernel, no driver blacklisted
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1270656/+attachment/3954637/+files/dmsg-201401221500.txt
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** Changed in: linux (Ubuntu)
Importance: Undecided = High
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https://bugs.launchpad.net/bugs/1270656
Title:
Ubuntu 14.04 boots to blank console
Status in “linux”
#12: yes this is true, but does not explain why this leads to blank
console using the ubuntu supplied kernel and not using one self
compiled from plain vanilla sources. I've tested since: 3.12.8,
3.13.0-rc8 and 3.13. All show the same result: working console at
expected 800x600.
The ubuntu
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
This doesn't seem to be related to util-linux.
** Package changed: util-linux (Ubuntu) = linux (Ubuntu)
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Title:
Ubuntu 14.04
** Attachment added: Console using plain vanilla kernel 3.13.0-rc8
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1270656/+attachment/3952528/+files/NC158_u1404-x86_64%20-%20VMware%20Workstation_024.jpg
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apport-collect fails to login to launchpad after allowing to access on
my behalf see:
https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1270717
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