Yesterday I upgraded to 14.04 from 13.10 and wanted to try nvidia-prime. However, I am unable to get it working. The message I am getting when I run 'nvidia-settings' at the command line is as follows:
ERROR: Error querying target relations
** Message: PRIME: No offloading required. Abort
** Message: PRIME: is it supported? no
ERROR: nvidia-settings could not find the registry key file. This file should
have been installed along with this driver at either
/usr/share/nvidia/nvidia-application-profiles-331.38-key-documentation
or /usr/share/nvidia/nvidia-application-profiles-key-documentation. The
application profiles will continue to work, but values cannot be
preopulated or validated, and will not be listed in the help text.
Please see the README for possible values and descriptions.
I tried installing and uninstalling many times following different suggestions that I could find, but apparently I am doing something wrongly as the guy here gets it to work on exactly the same laptop as mine (on 13.10)
Thank you very much
Best Answer
Here is a variant of the above, and a solution - for THIS case, possibly helping in the other cases too.
SIDENOTE 1: if you do not run nvidia-settings with
Then refer back to http://ubuntuforums.org/showthread.php?t=2140352 - then delete the .../ibus/ directory (note NOT .config/) and continue here...gksudo ...
THE FIRST TIME (and do not have "$HOME/.config/ibus/" at that time) you will end up seeing:SIDENOTE 2: you may also see:
The remedy is to do ... which was BROKEN for some time, but seems to be back "online" again.SIDENOTE 3: Unless you have e.g. DUMMY like this:
(hrm, that is three lines, even if doesn't look like it) ... then you will NOT have color-profiles loaded for your EXTRA displays - in a multi-display setup - on startup. The problem is the LAST LINE in /etc/group - that group will not "work".The following has a direct relation to not being able to save changed settings:
... is that familiar? Then do
Then check that you can see something similar to:
Note that "-340.24..." and maybe other parts may differ for you (depending on version of the driver), what is shown is after installing the very latest from the xorg-edgers ppa at this writing.