Yesterday I changed my Xubuntu 16.04 user password using passwd in the terminal. I continued working all day, everything was fine.  Today I turn on my machine, try to log in and I'm stuck in a log-in-loop. Every time I log in, the screen goes black, then it puts me back to the log in screen. It turns out that my ecryptfs password hadn't been updated, so I had to manually 'rewrap' it. 15 minutes wasted...  Then, I opened Chromium, and it asked for my keyring password. I entered my new password, and it wasn't accepted. I entered my old one, and it accepted that. Unfortunately because of this it seemed to have deleted all of my cookies, so every single website had been signed out. As somebody who uses Chromium all day every day, this was a big problem. 30 minutes wasted...  I then tried to change my password with the 'Users and Groups` GUI app, and upon clicking 'Change password', it hung like Windows Explorer often does... 15 minutes wasted.  So the question is - how do I change my password without causing these problems? As far as I know I didn't do anything out of the ordinary like manually editing /etc/shadow, so what went wrong?
I have ubuntu mate. I have recently changed my password using the passwd command. I know now that I have made a mistake because I also have my home directory encrypted with the previous password.  Consequently after enter my new password at login screen it return me back to the login screen.  Can someone please help me?  I am able to enter to grub boot menu and shell, i am also able to log into guest user. Sorry if the topic is duplicate but I haven't found the same question  Thanks in advance.
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What are the minimum and  maximum values of variance of random variable $X$? TP-LINK TL-WN823N Unable to connect to network I have been attending a number of academic / professional conferences recently and one thing that really awed me was the flawless and natural way in which the speakers presented on their topics.  Sure, they had the occasional mispronunciations or awkward pauses but they spoke with authority and confidence.   Some of them used powerpoint slides but were not reading from the slides; they were just talking on the points and they had so much to say on each point that I felt they could not do it without notes, but they were not even looking at their notes most of the time.  (The advantages of not looking at their notes too much was that they could maintain eye contact and could use very interesting slides that were not crammed with the dot points of their speeches.)  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I know how to set up the default scene by pressing Ctrl+U, but whenever I startup Blender it always fills only one of my screens, even if I set it to fill both before setting the default scene. I end up having to resize it every time I start it up. Is there a way to set this to happen by default? In QGIS, I want to make polygons from a set of intersecting lines. Looking at the screenshot here, I want chop the purple line (it's a closed line, not a polygon) where it crosses the green and blue lines. The result hopefully would be a polygon where I have hatched in red. I have quite a few to do.    I have tried the QGIS tool previously called Polygonizer (see ), but now called Polygonize. This is a tool that, given a layer containing a set of crossing lines arranged essentially like a # symbol, should create a polygon from the enclosed space in the middle.  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When I use "??" in front of the name of function there is no help, so I want to find the code of function among packages.