Sir I was not able to see my login screen so I switched to shell. Whenever I enter my username and press enter, the cursor never stop or wait for me to enter password, so I can not enter my password. And a loop of login incorrect occurs for 4 times. When I am in recovery mode it's fine.
I upgraded from 16.04 to 18.04. When I press Ctrl+Alt+F3 I get the terminal which prompts for the username. When I type my username and press Enter, it doesn't wait for my password (its as if I pressed Enter without entering anything). Even if I enter something, the text shown in plaintext and then it keeps on saying my password is wrong. After few times, the screen is cleared and it prompts for my username again and the same loop goes on.
It worked with the pre-installed Ubuntu, but after re-installing Ubuntu dual-boot with Windows 8.1, the WiFi is not working.  Is there a driver for this adapter that will work on Ubuntu 12.04? Trying to attach a file from SD Card to email I am trying to launch an Intent to send an email. All of that works, but when I try to actually send the email a couple 'weird' things happen.  here is code   Intent sendIntent = new Intent(Intent.ACTION_SEND); sendIntent.setType("image/jpeg"); sendIntent.putExtra(Intent.EXTRA_SUBJECT, "Photo"); sendIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse("file://sdcard/dcim/Camera/filename.jpg")); sendIntent.putExtra(Intent.EXTRA_TEXT, "Enjoy the photo"); startActivity(Intent.createChooser(sendIntent, "Email:"));   So if I launch using the Gmail menu context It shows the attachment, lets me type who the email is to, and edit the body &amp; subject. No big deal. I hit send, and it sends. The only thing is the attachment does NOT get sent.  So. I figured, why not try it w/ the Email menu context (for my backup email account on my phone). It shows the attachment, but no text at all in the body or subject. When I send it, the attachment sends correctly. That would lead me to believe something is quite wrong. Do I need a new permission in the Manifest launch an intent to send email w/ attachment? What am I doing wrong? Intuition behind the definition of a measurable set Prove that there are $p+1$ points on the elliptic curve $y^2 = x^3 + 1$ over $\mathbb{F}_p$, where $p > 3$ is a prime such that $p \equiv 2 \pmod 3$. Let $p &gt; 3$ be a prime such that $p \equiv 2 \pmod 3$. Define the elliptic curve $E$ over $\mathbb{F}_p$ by $y^2 = x^3 + 1$. Prove that $E(\mathbb{F}_p)$ consists of $p+1$ points.  Using Fermat's little theorem you can prove that $x^3 + 1$ is a bijection on $\mathbb{F}_p$. Hence, $$\#E(\mathbb{F}_p) = \#\{(x,y) \in \mathbb{F}_p^2 : y^2 = x^3 + 1\} + \#\{\infty\} = \#\{(x,y) \in \mathbb{F}_p^2 : y^2 = x\} + 1.$$ But then I am stuck trying to prove that $y^2 = x$ has $p$ solutions $(x,y) \in \mathbb{F}_p^2$. What are badges? How do users get badges? How can users get tag badges? Can badges be lost/revoked/taken away after they are awarded? If so, how and when? How can I suggest a new badge?   For more information, see &quot;&quot; and the  in the . How do you add CSS rules (eg strong { color: red }) by use of Javascript? What is the Unix command to create a hardlink to a directory in OS X? How do you create a hardlink (as opposed to a symlink or a Mac OS alias) in OS X that points to a directory? I already know the command "ln target destination" but that only works when the target is a file. I know that Mac OS, unlike other Unix environments, does allow hardlinking to folders (this is used for Time Machine, for example) but I don't know how to do it myself. Problems after upgrading to 14.04 (only background and pointer after login) I'm trying to understand the UMP of the product functor as right adjoint to the diagonal functor but I'm having difficulties understanding the notation in Steve Awodey's . On page 210 he uses $(f_1, f_2)$, $\langle f_1, f_2 \rangle$ and $(f_1 \times f_2)$ all within one paragraph. What are those? How are these defined and how do they differ? Note: I cannot specificly tell which version of which of the two conflicting packages fixed the issue, but as of 2016 mathpec and polyglossia no longer show the issue.   Basically, I have encountered the same error as  and the workaround suggested by Andrey Vihrov reenables me to compile the document. The problem now is, that any shorthand defined by the ngerman-package (most notably the non-breaking hypen "~) has now been disabled, and I see combinations of american style closing quotes followed by a non-break space where a non-breaking hyphen should be.  Is there any way possible of keeping the shorthand definition, or redefining it to something else (something like \nbhy pops up to mind)?  I am using XeLaTeX as supplied by TeXLive. Let $X_1$ and $X_2$ be independent and identically distributed exponential random variables with rate $\lambda$. Let $S_2 = X_1 + X_2$.  Q: Show that $S_2$ has PDF $f_{S_2}(x) = \lambda^2 x \text{e}^{-\lambda x},\, x\ge 0$.  Note that if events occurred according to a Poisson Process (PP) with rate $\lambda$, $S_2$ would represent the time of the 2nd event.   Alternate approaches are appreciated. The approaches provided are commonly used when learning queueing theory &amp; stochastic processes.     Recall the Exponential distribution is a special case of the Gamma distribution (with shape parameter $1$). I've learned there is a more general version of this  that can be applied. Dynamic Paint not showing in rendered image Is there a faster way to open a process as Administrator (With UAC enabled)? Currently (In Windows 10) - if I want to open a CMD prompt, I'll hit the Windows key, type CMD and hit Enter. If I want it open as an administrator, I have to right click the item and click Run As administrator. Is there a way I can do this without using the mouse? Could you list all possible directories where Android apps may store data, providing description what kind of data are stored in each directory? How can I know if a branch has been already merged into master? I have a git repository with multiple branches.   How can I know which branches are already merged into the master branch? How to validate phone numbers using regex I'm trying to put together a comprehensive regex to validate phone numbers. Ideally it would handle international formats, but it must handle US formats, including the following:   1-234-567-8901 1-234-567-8901 x1234 1-234-567-8901 ext1234 1 (234) 567-8901 1.234.567.8901 1/234/567/8901 12345678901   I'll answer with my current attempt, but I'm hoping somebody has something better and/or more elegant. Best way to remove an event handler in jQuery? The  feat (PHB, p. 168) says:     While you are wielding a glaive, halberd, pike, or quarterstaff, other creatures provoke an opportunity attack from you when they enter your reach.   The  feat (PHB, p. 170) says:     When a hostile creature's movement provokes an opportunity attack from you, you can use your reaction to cast a spell at the creature, rather than making an opportunity attack. The spell must have a casting time of 1 action and must target only that creature.   On this very topic, Mearls has :     Q: Do Polearm Master and War Caster combine to allow a magic user to make a spell opportunity attack when they enter reach?   A: No - polearm master applies only if you use the weapons it lists to make the attack     Another question on this very topic:   But since then, we now have spells like  (SCAG, p. 142):     As part of the action used to cast this spell, you must make a melee attack with a weapon against one creature within the spell’s range, otherwise the spell fails. On a hit, the target suffers the attack’s normal effects, and it becomes sheathed in booming energy until the start of your next turn. If the target willingly moves before then, it immediately takes 1d8 thunder damage, and the spell ends.    So, with the addition of booming blade, if I have a quarterstaff + War Caster + Polearm Master, could I use my reaction to cast booming blade if someone steps into my reach? I compiled the following file (through MiKTeX which I have just updated all files), and I do not get the junk.pdf file inserted.  \documentclass{report} \usepackage{pdfpages} \begin{document} qwe \includepdf[pages=-]{./junk.pdf} \end{document}   The .log and junk.pdf file are there: ;   OK, yes it works with pdflatex, but I have to use latex->dvips->ps2pdf because of other constraints insertion of EPS figures). Beside, I do not know how to use the suggested lastpage option.  Using \includepdf[nup=2x2,frame,pages={1-13}]{./junk.pdf} I do correctly get 5 pages which should have included junk.pdf, but I get blank pages with a black dot in the center. &quot;I hate wizards. If he so much as points a finger at me, you stick him, Hook.&quot; &quot;Remind me to find out the name of that flooring company so I can be sure never to buy so much as a carpet tile from it.&quot; &quot;I didn’t listen so much as survive the conversation.&quot;