Here is my question, what video driver/config files do I need to backup if I break my system by playing around with the settings?

So, I am still stuggling to get my Geforce working to my satisfaction (display freezes periodically, sometimes the system completely locks up, I use the REISUB quite a lot).

If I start VLC or Mplayer in auto-fullscreen mode it often locks up.

Bootup is always hit or miss, I get the login screen, but it will not accept input, just frozen. Hard reboot time, I don't like a hard reboot, feel like an amateur.

If the system freezes, it will not allow Ctrl+Alt+Fx, and not always REISUB.

So I'm going to try various drivers and configurations until I get it right.

I'm running Ubuntu 16.04 LTS.

Intel Core i7.

00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)

01:00.0 VGA compatible controller: NVIDIA Corporation GF108M [GeForce GT 555M] (rev a1)

I have an SSD as well, but this version of Ubuntu is very laggy, buggy, just not as good as I'd like.

What do you all think? What should I backup?

Thanks a lot folks. When I crack this, I'll post a full report.

Did I format this post correctly?

marked as duplicate by mikewhatever, Kevin Bowen, David Foerster, TheWanderer, Eric Carvalho Oct 8 '16 at 17:06

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • If you know where you originally got the drivers from, then you can just re-download them after a reinstall. Not sure what the question is here. – TheOdd Oct 8 '16 at 1:18

Last things first... I think your post is formatted perfectly!

I don't actually back files up. You can call that lazy or call it having 3 internal laptop drives, 1 external drive and another laptop to boot (pardon the pun).

What I do like to do is leave myself an easy way of reverting something I've changed by not actually changing lines but rather commenting them, copying them, inserting them and changing the cloned line. This makes it easy to reverse bad mistakes.

Hypothetically type this command:

` cat /usr/share/X11/xorg.conf.d/50-nvidia-drm-outputclass.conf/nvidia-drm-outputclass.conf.

And the output is:

# This xorg.conf.d configuration snippet configures the X server to
# automatically load the nvidia X driver when it detects a device driven by the
# nvidia-drm.ko kernel module.  Please note that this only works on Linux kernels
# version 3.9 or higher with CONFIG_DRM enabled, and only if the nvidia-drm.ko
# kernel module is loaded before the X server is started.

Section "OutputClass"
    Identifier     "nvidia"
    MatchDriver    "nvidia-drm"
    Driver         "nvidia"

Let's say I read a blog / answer / comment that said to change MatchDriver to "nvidia-quacamolie" I would instead do this:

#    MatchDriver    "nvidia-drm"
# As per www.thatguysblog.com/nvdia_trial_and_error_1001 set quacamolie
    MatchDriver    "nvidia-quacamolie"

If something goes wrong, I edit the file again, leave a comment on what went wrong, restore the original command by removing the '#' and then comment out the new command by inserting # in front. You could say my lazy backup method means the backup is in the configuration file itself and is more of a "way-back-out" than a "backup".

That takes care of changing configuration files.

If on the other hand you sudo apt-get install nvidia-367 and you were currently on nvidia-304 and things turned sour then you would simply purge nvidia-367 and install nvidia-304. Which according to Nvidia web site I should do on my own platform with Nvidia GeForce GT650M. But because I'm lazy I just turn off Nvidia and turn on Intel.

Which reminds me most people just use the Intel Graphcis driver (i915) and don't bother turning on the Nvidia. You have Intel HD3000 graphics and I have HD4000 graphics which has great performance. Even on my old Toshiba (year 2007) laptop with HD2000 graphics Ubuntu 14.04 with Unity 3-D graphics was acceptable and processor barely hit 50% usage with Video running on external TV and 10 chrome windows open on primary (built-in) display.

This isn't exactly the answer you were looking for but I hope it helps.

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