ASUS X540SA, Ubuntu 16.04.1 LTS, Kernal 4.4.0-36-generic  The touchpad seems to be detected as a mouse instead of a touchpad. The touchpad is recognized as a "pointer" rather than a touchpad. It has the basic usability of a mouse, with no ability to use multiple fingers or touch scrolling. Along with this, the mouse moves whenever I try to click with my thumb, due to the touchpad registering my thumb as a mouse movement as well. It is extremely difficult to right click because of this as well.  laptop@laptop-X540SA:~$ xinput ⎡ Virtual core pointer                          id=2    [master pointer  (3)] ⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)] ⎜   ↳ FTE1001:00 0B05:0101                      id=10   [slave  pointer  (2)]   The touchpad is detected as FTE1001:00 0B05:0101 and there is no "touchpad" setting in my mouse preferences either.  Shown here:    Is this a problem with the kernel or can I fix this manually?
I have an ASUS E402S laptop with Ubuntu 64-bit 16.04 LTS installed. The main problem is that the OS does recognize the touchpad with basic functions, but additional options such as scrolling through pages or between open applications are non-existent.  This is what my xinput result is showing:  ⎡ Virtual core pointer                      id=2    [master pointer  (3)] ⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)] ⎜   ↳ Logitech USB Receiver                     id=9    [slave  pointer  (2)] ⎜   ↳ Logitech USB Receiver                     id=10   [slave  pointer  (2)] ⎜   ↳ FTE1000:00 0B05:0101                      id=12   [slave  pointer  (2)] ⎣ Virtual core keyboard                     id=3    [master keyboard (2)]     ↳ Virtual core XTEST keyboard               id=5    [slave  keyboard (3)]     ↳ Power Button                              id=6    [slave  keyboard (3)]     ↳ Video Bus                                 id=7    [slave  keyboard (3)]     ↳ Sleep Button                              id=8    [slave  keyboard (3)]     ↳ USB2.0 VGA UVC WebCam                     id=11   [slave  keyboard (3)]     ↳ Asus WMI hotkeys                          id=13   [slave  keyboard (3)]     ↳ AT Translated Set 2 keyboard              id=14   [slave  keyboard (3)]   Apparently my touchpad's type is not shown in the list. What are the possible solutions to fix this issue?
How does the reparameterization trick for VAEs work and why is it important? How does the  for variational autoencoders (VAE) work? Is there an intuitive and easy explanation without simplifying the underlying math? And why do we need the 'trick'? When should unions be used? Why do we need them? How to generate all permutations of a list? I am seeking suggestions on what may be going in with an iMac I am currently troubleshooting, as it’s displaying behaviour I do not recall seeing before.  Short story  This iMac refuses to boot up. It gets the Apple logo, gets past the progress bar, and then gets stuck on the grey screen for about two minutes before rebooting itself. However, what makes this odd is that I can:   Start the iMac in Target Disk Mode and use it to successfully boot up other Macs. In doing so everything seems to work perfectly fine. Successfully boot the iMac from an external drive and everything seems to work perfectly fine.   Long story  I was presented this iMac about 2 weeks ago as it refused to bootup. That is, it would commence booting up and cycle through the Apple logo and progress bar, but after the progress bar completed it would remain on the grey screen for a couple of minutes before rebooting itself and doing the same thing all over again.   To address this I undertook the following troubleshooting steps:   Resetting SMC - failed Resetting NVRAM - failed Starting up in Safe Mode - failed Starting up in OS X Recovery Mode – failed Starting up in OS X Recovery Mode via the internet – failed Undertook an extensive hardware test using Apple Hardware Test (AHT 3A213) - passed Started iMac in Target Disk Mode and retested hard drive using Scannerz on another iMac - passed Started iMac in Target Disk Mode and reformatted the hard drive and did a clean install of Mac OS X El Capitan 10.11.6 - successful Migrated data from a Time Machine backup - successful   After these steps I tested the iMac for four days with no issues in terms of booting up and using the computer. On the fifth day I needed to manually import seven Apple Mail mailboxes. I did these one by one and six of them imported within minutes.  The last mailbox was showing as being 270 GB in size. I knew this was inaccurate, but I decided to import the mailbox so I could do a mailbox rebuild to correct whatever corruption had taken place. This import took over 12hrs to do but seemed to work fine and Mail was displaying the emails.  I then tested the iMac on and off for another day to ensure it had no problems booting up. This was successful.  I then decided to initiate the mailbox rebuild, but as soon as I did the screen went black and stayed that way regardless of any keyboard shortcuts I tried using. I waited an hour, forced a reboot, and ever since the iMac has returned to its original behaviour of not booting up – it would get past the progress bar and stay on the grey screen for a while before rebooting itself and starting the whole vicious cycle again.  I have again retested the hard drive, processor, RAM and Video Ram by starting the iMac from an external hard drive and using a combination of the following packages:   Apple Hardware Test (AHT 3A213) Scannerz TechTool Pro Memtester (under the Homebrew subsystem)   And now I have a situation where I can boot the iMac from external hard drives, and also use it in target disk mode to boot up other Macs, but cannot use it to boot from its own internal drive.  At present I have isolated the internal hard drive and am running a scan to check for any malware.   In the meantime, I am wondering:   Has anyone come across a similar scenario and, if so, what was the cause? Assuming I find no malware, do I go through the reformat/clean install/migration process again, but this time not import the last mailbox and see whether the iMac works fine? Any other suggestions?   iMac specs are as follows:   iMac (27”, mid 2011) 3.1 GHz Intel Core i5 8 GB RAM AMD Radeon HD 6970M 1024 MB 1 TB 3.5” SATA HD Mac OS X El Capitan 10.11.6 Intellij shortcut for quick call hierarchy Is there a shortcut key to bring up the call hierarchy of a method inline with the code, in the quick menu format, rather than bringing up the call hierarchy panel? Let H={e,(12)(34)} and K ={e, (12)(34), (13)(24), (14)(23)} be subgroups of $ S_4$ where e is identity element. Then which of following is true   H and K are normal subgroups of $S_4$ H is normal in K and K is normal in$ A_4$ H is normal in $A_4$, but not normal in $ S_4$ K is normal in $S_4$ but H is not   How should this question be approached, checking left and right cosets of these subgroup is very time consuming. Checking gh$ g^{-1}$ $\in $ H for every g in $ S_4$ is also time consuming. Is it considered rude if you only ask Questions but almost never answer one yourself I have used the websites of SO a lot the past few months because I am busy with a large scale web project. I feel I get better answers here on SO than when I just do a Google search, maybe because I can be more specific here with my problem, and the responses are really fast.  Occasionally when I am not working I try to answer some questions, but the question almost always has an answer which is 'as good as' or 'better' than the answer I would supply.  So my question/answer ratio is about 20/1 something, if not more. When I look at my profile page I see a bucket-load of questions and almost nothing I answered myself.  Is this considered bad behaviour? I can see that this looks a little egoistic.  : One devoted to one's own interests and advancement. What happens when I hover over a link in Chrome? Join tables from two different server Adverb sentence query He is arguably the best actor of his generation   In the above sentence the adverb is placed just after "be" Can we use adverb after "be"? If we can use then please explain properly because I have studied that adverb can be used before adjective and adverb . grep strange behaviour with single letter words I am removing stop words from a text, roughly using this   I have the following  $ cat file file types extensions  $ cat stopwords i file types   grep -vwFf stopwords file  I am expecting the result: extensions  but I get the ( I think incorrect)  file extensions   It is as if the word file has been skipped in the stopwords file. Now here's the cool bit: if I modify the stopwords file, by changing the single word/letter i on the first line, to any other ascii letter apart from f, i, l, e, then the same grep command gives me a different and correct result of extensions.  What is going on here and how do I fix it?  I'm using grep (BSD grep) 2.5.1-FreeBSD on a Mac OSX GNU bash, version 4.4.12(1) I'm searching a way to append a group in Python.  It should behave exactly like the Append function (ShiftF1) works, all objects should be local and editable. The idea is to append a character (with rig etc.) via Python and not Link it (to be able to modify it without making everything local one by one).  Thanks How to show $\lim_{n \to \infty} a_n = \frac{ [x] + [2x] + [3x] + \dotsb + [nx] }{n^2} = x/2$? A and B disjoint, A compact, and B closed implies there is positive distance between both sets How to Combine IN-Opeator with LookupIds in a caml-query? How do I remove diacritics (accents) from a string in .NET? I'm trying to convert some strings that are in French Canadian and basically, I'd like to be able to take out the French accent marks in the letters while keeping the letter. (E.g. convert é to e, so crème brûlée would become creme brulee)  What is the best method for achieving this? Order of an element in a finite cyclic group Train loss and accuracy In theory, is it possible that the loss on the train set will increase together with the train set accuracy? (in the normal case the train set loss should go down) And vice versa, can the train loss decrease along with the accuracy?   Note: This is obviously different than the classic underfit / overfit cases which are easier to grasp. in QGis 1.8 were lots of predefined coordinate systems (national projections). Where have they all gone in qgis 2.0? I specifically need the Gauß-Krüger-Projections Zone 1 to 5.  Is there any plugin to load those coordinate systems? String handling by OneHotEncoder I am reading everywhere on new questions and blogs that since version 0.20, OneHotEncoder is able to handle string features. Moreover, the documentation is what looks more ambiguous. Here are the first two lines from the documentation:  Encode categorical integer features as a one-hot numeric array. The input to this transformer should be an array-like of integers or strings, denoting the values taken on by categorical (discrete) features.  First line says it  encodes categorical integer features  and the next line says  input should be array like of integers or strings.  When i tried it, i still got the value error. print(X.columns) encoder = OneHotEncoder(categorical_features=[1,4,5]) encoder.fit(X)  Index(['age', 'sex', 'bmi', 'children', 'smoker', 'region'], dtype='object') ValueError: could not convert string to float: 'female'  I am aware of the means to handle encoding of string features with LabelEncoder, ColumnTransfomer and pd.getDummies() but specifically want to understand about this.