[Bug 1523274] Re: nvidia-settings: Couldn't connect to accessibility bus

[David A. Desrosiers]

Can confirm, this also affects:

nvidia-settings; 396.18-0ubuntu0~gpu16.04.1
nvidia-390.48
Xenial 16.04.4 LTS

I have tried every NVIDIA driver from 390.48 direct from NVIDIA all the
way back to 304 from 'main' and the graphics PPA, all with 100% failure
correctly identifying or using my LCD panel or any externally connected
displays.

This _just_ started happening after 1 year of correctly configured and
perfect use of all 3 panels. I can't figure out what happened that broke
this, but now nothing works, and I'm stuck with the default Intel
driver, which only supports 1600x1080 on my 4k panel.

Booting Windows 7 on the same physical metal, all 3 panels work
flawlessly, arranged correctly, at the native 4k resolution.

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https://bugs.launchpad.net/bugs/1523274

Title:
  nvidia-settings: Couldn't connect to accessibility bus

Status in dbus package in Ubuntu:
  Confirmed

Bug description:
  When trying to restore .nvidia-settings-rc by executing:

  $ nvidia-settings --load-config-only --config /path/to/config

  the output is:

  ** (nvidia-settings:6149): WARNING **: Couldn't connect to
  accessibility bus: Failed to connect to socket /tmp/dbus-J3LbSsVkdy:
  Connection refused

  the settings are not being restored. It doesn't matter if the command
  is executed as root or not.

  I also spotted such messages in other places, for example when
  executing "ubuntu-bug" which lead me here:

  ** (apport-gtk:6236): WARNING **: Couldn't connect to accessibility
  bus: Failed to connect to socket /tmp/dbus-J3LbSsVkdy: Connection
  refused

  I am running Xubuntu 15.10 which is an upgraded installation from
  15.04 which again is an upgraded installation from 14.10. I hope
  that's not the root of my problem.

  Thanks in advance for any help!

  Greetings from Germany,

  Tobias Burkard

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: dbus 1.10.0-1ubuntu1
  ProcVersionSignature: Ubuntu 4.2.0-19.23-generic 4.2.6
  Uname: Linux 4.2.0-19-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Sun Dec  6 20:20:16 2015
  InstallationDate: Installed on 2015-03-09 (271 days ago)
  InstallationMedia: Xubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  SourcePackage: dbus
  UpgradeStatus: Upgraded to wily on 2015-11-05 (30 days ago)

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