Jamin W. Collins, as per http://download.lenovo.com/express/ddfm.html an update
is available for your BIOS (2.55). If you update to this following
https://help.ubuntu.com/community/BiosUpdate , does it change anything? If it
doesn't, could you please both specify what happened, and just provide
Any suggestion on the next steps?
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Title:
nvidia optimus chipset disabled when running on battery, even in
discrete mode
To manage
As a baseline, the 3.8 kernel works normally, with text displays on all
six vts. Both the 3.9 and 3.10 kernel's fail in different ways and to
different degrees.
3.9
- does not work first boot (poweroff or reboot)
- works (if power drained, battery removed)
- no console display (vts 1-6)
- reboot
So it sounds like 3.9 final exhibit the bug? If so, can you test some
of the v3.9 release candidates. We are looking for the last good kernel
version and the first kernel version that has the bug:
v3.9-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.9-rc1-raring/
v3.9-rc3:
I can't say that 3.9 really exhibits the bug. It no longer has text on
the VTs (which is it's own bug), but can be coaxed into providing an X
display if the right steps are followed. That's not to say that it's
smooth or the desired behavior, but it *can* provide an X display.
Whereas, 3.10 can
3.9-rc1 exhibits the same behavior as 3.9. That is, it can provide an X
display if coaxed and provides no text output on any of the VTs.
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Title:
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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Title:
nvidia optimus chipset disabled when running on battery, even in
I can assist you with the bisect. We first need to identify the last
good kernel version and the first bad kernel version. Can you test the
following upstream kernels and post back:
3.9 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.9-raring/
3.10 final:
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v3.12 kernel[0].
If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.
If the mainline kernel does not fix
The nvidia kernel module source fails to build against the 3.12 mainline
kernel (see attached build failure). Unable to complete the requested
testing due to this.
** Tags added: kernel-unable-to-test-upstream
** Attachment added: nvidia module build failure
If someone can point me to steps for bisecting the changes between the
3.8 and 3.11 kernels, I'd be happy to do the leg work.
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Title:
nvidia
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