desktop-packages team mailing list archive

[Alberto Milone <alberto.milone@xxxxxxxxxxxxx>]

On 13-08-15 16:45:47, teo1978 wrote:
> > 2) Optimus is supported by the NVIDIA driver.
>
> That's not what NVidia told me. I asked for support and they told me it's officially unsupported on Linux.
> And what I can tell for sure is that it doesn't work. The screen switching issue is well known.

That only means that, if something goes wrong, you're on your own (at
least as far as NVIDIA are concerned). Support for Optimus is something
that we provide using our own system. What the NVIDIA driver supports is
part of the RandR 1.4, which we use for Optimus.

I won't comment on the screen switching issue, unless I see the relevant
logs (in a separate bug report), as it could depend on a number of
things (including your hardware configuration).

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to nvidia-graphics-drivers-331 in Ubuntu.
https://bugs.launchpad.net/bugs/1431753

Title:
  Nvidia binary driver FTBS due to DKMS layer violation

Status in nvidia-graphics-drivers-331 package in Ubuntu:
  Invalid
Status in nvidia-graphics-drivers-331-updates package in Ubuntu:
  Invalid
Status in nvidia-graphics-drivers-340 package in Ubuntu:
  Fix Released
Status in nvidia-graphics-drivers-340-updates package in Ubuntu:
  Fix Released
Status in nvidia-graphics-drivers-346 package in Ubuntu:
  Fix Released
Status in nvidia-graphics-drivers-346-updates package in Ubuntu:
  Fix Released
Status in nvidia-graphics-drivers-331 source package in Trusty:
  Invalid
Status in nvidia-graphics-drivers-331-updates source package in Trusty:
  Invalid
Status in nvidia-graphics-drivers-340 source package in Trusty:
  Fix Released
Status in nvidia-graphics-drivers-340-updates source package in Trusty:
  Fix Released
Status in nvidia-graphics-drivers-346 source package in Trusty:
  Fix Released
Status in nvidia-graphics-drivers-346-updates source package in Trusty:
  Fix Released

Bug description:
  Filing this against the 340-updates version but possibly the same
  applies to older versions, too. The nvidia source package produces two
  individual dkms packages: nvidia-340-updates, nvidia-340-updates-uvm.
  The problem is that the DKMS build of the nvidia-uvm module runs
  compile steps inside the nvidia modules build directory. This is
  violating the DKMS assumption that each module can be build
  independently (there is no way of describing cross-modules
  dependencies and even more important, the autoinstall step after a new
  kernel is installed will run the modules build in parallel).

  Since nvidia and nvidia-uvm are very dependent on each other the right
  course of action seems to be to combine both sources in one DKMS
  module that produces two kernel modules (this is supported by DKMS).
  For the transition this resulting dkms package needs to have a
  breaks/replaces for the nvidia-uvm package.

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