a few days ago I ran into a  issue after downloading some updates. Since then I've been searching for information and trying countless procedures to solve it, to no avail.  Here's some info which I hope will be useful:   My computer: a 2008 Packard Bell PC, Intel Core 2 Quad CPU 2.4 GHz processor, 4 GB of RAM, Geforce 9300 GE graphics card. Kernel version: 3.13.0-46-generic Ubuntu version: 14.04.2 LTS   At a very high level here's what I've tried so far:    uninstalling then reinstalling Vidia drivers, installing X Updates PPA, installing Gnome interface (which I actually can't even access)   Please advise, your help will be greatly appreciated.  March 01st Update:  Hello, here are today's results:   compizconfig-* worked, thanks very much The 1st solution of thread 17381 didn't restore the GUI but displayed  compizconfig - Info: Backend : ini compizconfig - Info: Integration : true compizconfig - Info: Profile : default Segmentation fault (core dumped)  the 2nd solution of thread 17381 returned (I'm just quoting what I think can help, ie the error messages):   Glib-warning **: In call to g-spawn-sync(), exit status of a child process was request but ECHILD was received by waitpid(). Most likely the process is ignoring SIGCHLD, or some other thread is invoking waitpid() with a non positive first argument; either behavior can break applications that use g_spawn_sync either directly or indirectly.  dconf-WARNING **: failed to commit changes to dconf: Error spawning command line  'bus-launch --autolaunch=dfa6290d0169f2653223ea790000000000c --binary-syntax-- close-  stderr': Child process killed by signal 43 (...) Info: Unity is fully supported by your hardware Info: Starting plugin: openg1    I didn't try creating a script as suggested in thread 457016 as I know I'll make a mess of it, especially through CLI. It seems like we're doing good progress but there's still a few hurdles on the way :)  March 01st Update #2:  I tried running startx and I could see the desktop and the files that are located there, however I have no wallpaper (but a blue background) and no taskbar and vertical iconbar. I can open the text files but not the pictures.
When I login, nothing happens.   I am presented with my desktop wallpaper.    No Dash, no Launcher, nothing.
Simple logic problem: Finding largest and smallest number among 3 numbers Poincaré inequality for a subspace of $H^1(\Omega)$ The following is the well known  for $H_0^1(\Omega)$:       Suppose that $\Omega$ is an open set in $\mathbb{R}^n$ that is bounded. Then there is a constant $C$ such that   $$ \int_\Omega u^2\ dx\leq C\int_\Omega|Du|^2\ dx\quad \textrm{ for all   }\ \ \color{red}{u\in H_0^1(\Omega)}. $$   Here is my questions:    Can the condition $u\in H_0^1(\Omega)$ be relaxed so that the inequality is still true? More precisely, suppose $H$ is a subspace of $H^1(\Omega)$ such that for any $u\in H$, $u|_\Gamma=0$, where $\Gamma$ is a ([Added:]nonempty) closed proper subset of the boundary $\partial\Omega$ and the idenity is in the sense of trace. In other words, $u$ is only zero on a part of the boundary. Do we still have the Poincaré ineqaulity in $H$?    [Added:] This question is motivated by the following exercise what is the surface area of a cap on a hypersphere? According to , let the sphere have radius $R$, then the surface area a spherical cap of height $h$ and base radius $a$ is given by $$S=2\pi Rh=2\pi(a^2+h^2).$$  What is this value for an n-dimensional hypersphere? If it helps simplify the problem we can assume $R=1$ and $a=0.5$.   Many thanks. I’m able to copy-paste from any application to any application. I’m able to copy from a comment or from a question or from an answer. I’m able to paste to a question or answer. However, if I attempt to paste into a comment, nothing happens. I am able to subsequently paste into another application, confirming that the text is actually on the clipboard.   However, copying SE links will paste them successfully, but all other text - including other links - still fails. This leads me to believe that it’s a SE issue and not an Apple one.   This has been an issue since 11.0 beta and persists through iOS 13 release. Am I correct to say the difference between a signed and unsigned integer is:  Unsigned can hold a larger positive value and no negative value. Unsigned uses the leading bit as a part of the value, while the signed version uses the left-most-bit to identify if the number is positive or negative. Signed integers can hold both positive and negative numbers.  Any other differences? How to make Outlook 2010 minimize when I try to close it? When clicking the X button or ALT+F4, how can I get Outlook to minimze to the tray instead of close?  Several programs have this behavior, and it's annoying that Outlook behaves different... Where did Hogwarts get money for salaries, food and other purchases? Can I use old Minolta AF lenses on my new Canon? I just recently bought my first DSLR, a Canon Rebel t2i/550d. I use it mostly for video and it works wonderfully. I bought the kit lens with it, but I am looking to expand my lens collection. I found a set of old Minolta lenses from my dad, and I was wondering if I could use them on my new camera. The lenses are: a Sigma UC zoom 28-105 f4-5.6, a Minolta Maxxum zoom 70-210mm, a Minolta Maxxum zoom 28-58mm and a Kalimar 500mm lens. I know about the crop factor and that the auto focus won't work, but that does not bother me. Is there an adapter for Minolta AF/Sony to Canon EF mount? Any help is appreciated. Thanks! Reversing the $T(n) = \frac{n(n+1)}{2}$ formula Can someone reverse this formula? Sorry if it's too basic, I'm an old guy and my math is rusty :-D  $s =\frac{n(n+1)}{2}$  If it ain't clear, by reverse I mean obtaining the value of n by providing s  Thanks Why does Oracle 9i treat an empty string as NULL? Can I set up WhatsApp on my desktop when my smartphone is broken? Where should I start learning? There are various topics to learn like Objects, Classes, Apex, Visualforce, SOSL, SOQL, Triggers, etc. There are so many options out there to start learning. I couldn't decide what topic to learn first, and then step by step get proficiency in all aspects of Saleforce. $\operatorname{rank}(T^3) + \operatorname{rank}(T) \geq 2\operatorname{rank}(T^2)$ for finite-dimensional $V$ Where can I ask Android related questions in Stack Exchange? I would like to know where I can ask Android apps and other mobile related questions. Is there a Stack Exchange site for such questions? Mass Uninstalling Just been working on a new laptop today (Acer) and it was pre-installed with all sorts of crapware. Mostly games and "backup utilities" and McAfee. I had to manually uninstall about 30 apps via Vista's Programs and Features  So it got me wondering is there any way of mass uninstalling or queuing an app to be uninstalled? Through Vista/XP you need to wait for Install Shield or whatever to close before beginning to uninstall the next app. Took way more time than it should have.  Just another one of those Windows annoyances! Any help appreciated as I often need to do this when I come across a slow machine that's just been clogged with a bunch of useless apps What is the difference between therapy and treatment? Is this NPN transistor AND logic gate practical? What is the best algorithm for overriding GetHashCode? In .NET, the  is used in a lot of places throughout the .NET base class libraries. Implementing it properly is especially important to find items quickly in a collection or when determining equality.  Is there a standard algorithm or best practice on how to implement GetHashCode for my custom classes so I don't degrade performance? Can I make a script always execute as root? Split a string by spaces -- preserving quoted substrings -- in Python