Kernel update came through this morning, to:
3.11.0-15-generic #22-Ubuntu SMP Mon Dec 2 23:35:23 UTC 2013
and this seems to have fixed it for me!
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Mike Heald, this bug report is being closed due to your last comment
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1099204/comments/31
regarding this being fixed with an update. For future reference you can
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apport information
** Tags added: apport-collected trusty
** Description changed:
- I have a Lenovo Y580 Ideapad. When booting with the 3.8.0 kernel, the
- screen turns off when the ubuntu logo and progress bar should display.
- Xorg starts, I can hear the startup sound, but the screen is
Problem is still present in the trusty livecd, as of today.
Tested with the mainline kernel,
mikeh@bones:~$ uname -a
Linux bones 3.12.0-031200-generic #201311031935 SMP Mon Nov 4 00:36:54 UTC 2013
x86_64 x86_64 x86_64 GNU/Linux
mikeh@bones:~$
and the problem is present there too.
** Changed
Mike Heald, the next step is to fully commit bisect from Raring to
Saucy, in order to identify the offending commit. Could you please do
this following https://wiki.ubuntu.com/Kernel/KernelBisection ?
** Attachment removed: lspci -vv
Mike Heald, could you please confirm this issue exists with the latest
development release of Ubuntu? ISO images are available from
http://cdimage.ubuntu.com/daily-live/current/ . If the issue remains,
could you please run the following command in the development release
from a Terminal
Upgraded to saucy, running kernel 3.11.0-4-generic, bug is still
present.
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https://bugs.launchpad.net/bugs/1099204
Title:
Laptop screen turned off with kernel 3.8.0 in raring
To
Yes, this bug is still present with raring up to date as of today.
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https://bugs.launchpad.net/bugs/1099204
Title:
Laptop screen turned off with kernel 3.8.0 in raring
To manage
I'd better confirm that, same as @spectral, this is a brightness bug.
The brightness is at the very lowest level, so it appears as if the
laptop screen is off.
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Mike,
I'm assuming that you've updated to the release version of Raring. Are
you still having this issue with the latest Raring kernel?
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https://bugs.launchpad.net/bugs/1099204
Title:
I just noticed that in my case, the display isn't totally disabled, but
the brightness is turned down to minimum so that nothing is visible on
the screen. When I use Fn + up arrow multiple times to increase
brightness, the screen comes back.
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Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v3.8 kernel[0] (Not a kernel in the daily directory) and install both
the linux-image and linux-image-extra .deb packages.
If this bug is fixed in the
Have done so, the bug still exists.
If there are any more tests I can do, or debugging information I can get
to help fix this, please let me know.
** Tags added: kernel-bug-exists-upstream
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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You received this bug
This issue appears to be an upstream bug, since you tested the latest
upstream kernel. Would it be possible for you to open an upstream bug
report[0]? That will allow the upstream Developers to examine the
issue, and may provide a quicker resolution to the bug.
Please follow the instructions on
Thank you for taking the time to report this bug and helping to make
Ubuntu better. This bug did not have a package associated with it, which
is important for ensuring that it gets looked at by the proper
developers. You can learn more about finding the right package at
Hallo Mike
are you using raring or quantal with 3.8 kernel ?
Boot the 3.8 kernel, restart system with magic keys, boot 3.5 and attach here
/var/log/syslog
/var/log/dmesg
/var/log/Xorg.0.log.old
Thanks
Fabio
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