As per title, why Ubuntu with the 4k Monitors it has this strange managing/behaviour under the DPI called Fractional Scale. Exeample, I have the 4k Monitor where the Resolution it's 3840 x 2160, yes you can manage the words proportions, icons and so on, but will never be homogeneous proportions like as you set all the system with the DPI option. One thing that I noticed with Ubuntu, it's, with 4k Monitors you pass from 100% DPI (small for 4k) to 200% (big for 4k monitors), so if you wanna go in between you have to choose the Fractional Scale that allows you to set 125, 150 and so on DPI scale... But here comes in the way the problems, under the game sections and some software, because if you set 150 DPI scale the Fractional Scale Options it will keep the Monitor in Native 4k 3840 x 2160 but to scale everything in 150 DPI it will &quot;let to think to the System&quot; that you are under 5k Monitor as 5120 x 2880 pixels, and this you cannot reverse if you want keep 4k 150 scale DPI!!! So, the system it tells you that you are fine under 4k, but the Nvidia in detailed it tells that you are in 4k Monitor under 5k Resolution (as the games or software percept as well 5120 x 2880), and if you change it with Nvidia x Server Settings, you can cange temporary; but in the next reboot will go back in the same way 4k Monitor 5k Resolutions. And, if you are using some Games or Wine or even some software it behaves as it runs under 5k Monitor with the consequences of messy resolutions and increase the GPU Power because the GPU has to manage higher Resolution. My question, it's, why Ubuntu cannot manage it in better way as any other OS or Windows OS without using this &quot;go around system for DPI options&quot;? Technically there is some reason or it's just a limited implementation?
Is fractional scaling ( ) available in 18.04 LTS yet? I am waiting until this is available before I install.
Pre-1972 sci-fi short story or novel: alien(?) tunnel where people try new moves and get destroyed if they're not the correct ones For the finite-dimensional case, we have a canonical isomorphism between $\mathbf{V}$, a vector space with the usual addition and scalar multiplication, and $(\mathbf{V}^*)^*$, the "dual of the dual of $\mathbf{V}$." This canonical isomorphism means that the isomorphism is always the same, independent of additional choices.   We can define a map $I : \mathbf{V} \to (\mathbf{V}^*)^*$ by $$x \mapsto I(x) \in (\mathbf{V}^*)^* \ \text{ where } \ I(x)(f) = f(x) \ \text{for any } \  f \in \mathbf{V}^*$$  My Question: what can go wrong in the infinite-dimensional case? The notes I am studying remark that if $\mathbf{V}$ is finite-dimensional, then $I$ is an isomorphism, but in the infinite-dimensional case we can go wrong? How? Displaying two XML listings side by side. I have two XML outputs from a program that I would like to include in a LaTeX document. I would like them to appear side-by-side each in its own box. So that a reader can compare the two outputs while reading the document. Can't seem to find a way to do this, without making images for each output and adding both as images/graphics. Could there be a better option? "It was my op" what does it mean? I heard this in  movie. It was my op. What does it mean? Googling gave me : 'Original Poster'. But that doesn't seem very meaningful. Why do we have two of some organs, but not all? We have two eyes, but we don't have two hearts. Why do humans have two of some organs, but not all? Let $f(z)$ be a holomorphic function on a disk of radius $&gt;1$ about the origin, and suppose that $|f(z)|\leq 1$ for $z$ with $|z|=1$ and $\text{Re}(z)&gt;0$ and $|f(z)|\leq 2$ for $z$ with $|z|=1$ and $\text{Re}(z)\leq 0$.  How does one show the bound $|f(0)|\leq \sqrt{2}$? How would one denote the set of all subsets of $A$ which have size $2$?  Would  $$\binom{A}{2}$$  be a good idea? How to check if a 2D point is in a polygon? What performance differences are there when installing with Wubi? Nice looking progress bar in java In shell scripts used for unit testing with dynamic libraries in a directory other than the typical @rpath, I have previously been able to set DYLD_FALLBACK_LIBRARY_PATH to set the directory containing the libraries. Under 10.11.1, bash seems to ignore attempts to set this environment variable:  $ sh -x testscript.sh + DYLD_FALLBACK_LIBRARY_PATH=/Users/something/testinglibs + export DYLD_FALLBACK_LIBRARY_PATH + exec printenv   and DYLD_FALLBACK_LIBRARY_PATH is not present in printenv's output.  Is this a security-related hack in 10.11's shell? I haven't been able to find this change documented in man pages or online. Proof of $1+x\leq e^x$ for all x? Change name on the main Stack Exchange profile I am trying to prove that the affine hull of a set $X \subseteq \mathbb{R}^d$ is equal to the affine hull of the clojure of that set: $$ \text{aff}(X) = \text{aff}(\text{cl}(X)). $$  Proving $\text{aff}(X) \subseteq \text{aff}(\text{cl}(X))$ is easy, but containment in the other direction is harder.  I am assuming there is a sequence $\{ x_k \}_{k=1}^\infty \subseteq X$ such that $\lim_{k\to \infty} x_k = x^*$. The point $x^*$ is obviously contained in $\text{aff}(\text{cl}(X))$. But I am not sure how to show it is also in $\text{aff}(X)$, specifically because I am not sure how to show that $x^*$ lies on a line connecting two points in $X$.  Any suggestions on how to surmount this hurdle are welcome. Give a deduction of $\forall y \exists x (x=y)$  My thinking is I can prove $\exists x(x=y)$ then use generalization theorem， which is equivalent to prove $\neg \forall x \neg (x=y)$ but I got stuck proving this... thanks in advance  Sorry that I did not specify what deduction system that I want to use here, it is the deduction sequence  where ai is either Axiom or original hypothesis or obtained from MP I am trying to make folder that everyone can view and can't copy,modify.    For all answers.I thinking about specially ms office files. I tried following methods  Software  - copy protect    - anti copy    This method can't protect save as and upload  MS office macro    Users can enable,disable macros.  MS office restriction    This is best choice but can't protect from file uploading.   Almost I found the solution. Way is combination of MS office restriction and restrict access from browsers using firewall or antivirus. But I don't exact how to do this. Escaped line break tag in tooltip on election page System file windows open behind Unity launcher I'm on Ubuntu 16.04.1 at the moment, and system windows like the Files window, Terminal or System Software open behind the Unity launcher, which means they are partially hidden behind it. I can move them with Alt+F7, but I'd like a more permanent solution to this problem. Assessing approximate distribution of data based on a histogram Does centrifugal force exist?