desktop-packages team mailing list archive

[Alberto Milone <alberto.milone@xxxxxxxxxxxxx>]

Just to clarify:

1) Do not install the driver unless you want to use it. Uninstalling the
driver will not break your system. By design a driver will be enabled if
you install it. We keep an option to disable the driver but that's only
to be used by gpu-manager (which is part of ubuntu-drivers-common), in
order to support hybrid graphics. That is not meant to be disabled
manually.

2) Optimus is supported by the NVIDIA driver. @teo1978 feel free to file
a separate bug report about the external screen issue.

3) Optimus seems to fail with 340 on some systems, and even with 346 on
others. We moved from the "modesetting" driver (which NVIDIA recommend
but it's not the only driver that works) to "intel" because some systems
didn't work (either at all or correctly). On such systems using the
modesetting driver is the only solution. Please file a separate bug
report about this (and file it against "ubuntu-drivers-common")

-- 
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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