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[all variants] After upgrading Ubuntu black screen?

After applying the latest upgrade instead of prompting for my password, Ubuntu is not sending any signal to my monitor. It gets so far as the 5/6 dots to show it is progressing through boot, but no further. What I have tried already is below:

When attempting to run in fail safe graphics mode (from 4.4.0-34-generic (recovery mode) and 4.2.0-42-generic (recovery mode)) I receive the following error:

Code:

The system is ruing in low-graphics mode

Your screen, graphics card, and input device settings could not be detected correctly. You will need to configure these yourself.
If I select the radio button for try ruing with default graphical mode the black cross cursor appears in the foreground but the background is just a black screen, and this does not change. If I select reconfigure graphics I receive a prompt to select either use default (generic) configuration or use your backed-up configuration. Selecting either and clicking on OK does nothing.

I am just trying fsck from the recovery options, which is working on /dev/mapper/enc-pv.

Graphics card is an MSI GTX 970, please tell me how I can resolve this?

EDIT:

I thought fsck was hanging on /dev/mapper/enc-pv as it is a large part of the drive but that may not be the case, as the screen has just gone dark again.

Also, as it may be relevant there was an error that appeared, during but separate to, the upgrade when I was last logged in:

Code:

The volume "filesystem root" has only 763.6 MB disk space remaining.

You can free up disk space by removing unused programs or files , or by moving files to another partition.
I selected the ignore button, as the upgrade was just removing old or unused packages which I thought may help on this, although thinking on it now I have a separate /boot partition...

برچسب: نویسنده: استخدام کار تاريخ: يکشنبه 24 مرداد 1395 ساعت: 3:49

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