Ubuntu graphics resolution 640x480 fix

I stuck with 640x480 for some time ... so here is 3 easy steps to fix it:

Note: Tested on ubuntu 16.04 / 17.10 / 18.04 (bionic)



1) go to native terminal

ctrl+alt+F1

2) disable windows manager (step 1)

sudo lightdm stop

3) create new xorg config file (step 2)

sudo Xorg -configure

4) backup old xorg file ... (optional step for peace of mind)

sudo mv /etc/X11/xorg.conf /etc/X11/xorg.conf.bak

5) copy new configuration (step 3)

sudo mv /root/xorg.conf.new /etc/X11/xorg.conf

6) start lightdm (didn't work for me)

sudo lightdm start

7) reboot - this actually works!

reboot

and that's it ;-)

Solution: Ubuntu/Linux vs JDK => Maximum number of clients reached / unable to open display

For work I'm using Ubuntu, and as developer, I constantly use some JDK tools/IDEs, usually it is IntelliJ IDEA, sometimes eclipse, some other specific, like nVidia studios..
I'm typical linux user - so "try it switch off and on" is not the standard way to deal with problems.
From some time when I tried to start some graphical tool I got this error:

Maximum number of clients reached unable to open display ":0"

I hate it and spend lots of time for investigation, went throug all standard:

xlsclients/xwininfo/xhost - which didn't work as they all need access to X (they are clients)  - so typical catch 22

I spend some time on different ubuntu settings for X-org/ file limits etc - everything set properly, all almost unlimited...
then finally by just some good luck I shut down my IntelliJ and ... checked that thousand of resources suddenly disappeared from usage list..


Final solution: you need suckless-tools ;-)

apt install suckless-tools

Ubuntu 14.04 + apple time capsule

Finally got access to time capsule. 

1) install libraries:

sudo apt-get install libgcrypt11 libgcrypt11-dev libgmp3-dev readline-common libreadline6 libreadline6-dev libfuse2 libfuse-dev libncurses5-dev

2) download afpfs (link here)
3) unarchive afpfs ( tar -xzvf )
4) navigate to afpfs (cd afpfs*)
5) you will have to patch the afpfs because it has a bug in ubuntu 12.04 /13.04 and still in 14.04:

wget -O offset.diff https://bugzilla.redhat.com/attachment.cgi?id=397155 && patch -p1 < offset.diff

wget -O afpfs-ng-0.8.1-pointer.patchhttps://bugzilla.redhat.com/attachment.cgi?id=505576 && patch -p1 < afpfs-ng-0.8.1-pointer.patch

6) supposing you are in afpfs folder you archived:

sudo configure --prefix=/usr

sudo make install

7) now you should be able to connect to your timecapsule using this:

mkdir ~/capsule

8) Command for MOUNT: 

mount_afp afp://user:password@server_host_or_ip/Data ~/capsule

9)Command for UNMOUNT:

afp_client unmount ~/capsule

You should see a “capsule” folder in your home folder.
In my case Time Capsule stands on 10.0.1.1

Thanks to alex!

How to fix MacBook Pro touchpad on Ubuntu 14.04

I spend few long hours to try to fix default crappy touchpad behavior, before finally I got to this.
And by "crappy" I mean: not working gestures, buttons clicked on random, cannot properly select text, etc... basic test: you simply cannot play solitaire ;-).

Finally I found mtrack! 

3 easy steps:
1) install

sudo apt-get install xserver-xorg-input-mtrack

2) at the bottom of configuration add those settings (instead vi you could use nano/gedit):

sudo vi /usr/share/X11/xorg.conf.d/50-synaptics.conf

my settings are:

Section "InputClass"
        MatchIsTouchpad "on"
        Identifier      "Touchpads"
        Driver          "mtrack"
        Option          "Sensitivity" "0.95"
        Option          "FingerHigh" "12"
        Option          "FingerLow" "1"
        Option          "IgnoreThumb" "true"
        Option          "IgnorePalm" "true"
        Option          "TapButton1" "0"
        Option          "TapButton2" "0"
        Option          "TapButton3" "0"
        Option          "TapButton4" "0"
        Option          "ClickFinger1" "1"
        Option          "ClickFinger2" "3"
        Option          "ClickFinger3" "3"
        Option          "ButtonMoveEmulate" "false"
        Option          "ButtonIntegrated" "true"
        Option          "ClickTime" "25"
        Option          "BottomEdge" "25"
        Option          "SwipeLeftButton" "8"
        Option          "SwipeRightButton" "9"
        Option          "SwipeUpButton" "0"
        Option          "SwipeDownButton" "0"
        Option          "ScrollDistance" "75"
        Option          "ScrollUpButton" "5"
        Option          "ScrollDownButton" "4"
EndSection

note ScrollUpButton/ScrollDownButton - changed to default apple like behavior ("natural");

3) restart and enjoy:

sudo restart lightdm