xubuntu 18.04 mouse sensitivity fix

If GUI mouse sensitivity settings don't work try using commands:

> xinput

 Will output:

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 Consumer Control      id=10    [slave  pointer  (2)]
⎜   ↳ Logitech USB Laser Mouse                    id=15    [slave  pointer  (2)]

Remember those id's or use "Logitech USB Receiver" and "Logitech USB Laser Mouse" device names in the following commands.

> xinput list-props 'Logitech USB Laser Mouse'

Device 'Logitech USB Laser Mouse':
    Device Enabled (155):    1
    Coordinate Transformation Matrix (157):    1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
    libinput Natural Scrolling Enabled (289):    0
    libinput Natural Scrolling Enabled Default (290):    0
    libinput Scroll Methods Available (291):    0, 0, 1
    libinput Scroll Method Enabled (292):    0, 0, 0
    libinput Scroll Method Enabled Default (293):    0, 0, 0
    libinput Button Scrolling Button (294):    2
    libinput Button Scrolling Button Default (295):    2
    libinput Middle Emulation Enabled (296):    0
    libinput Middle Emulation Enabled Default (297):    0
    libinput Accel Speed (298):    1.000000
    libinput Accel Speed Default (299):    0.000000
    libinput Accel Profiles Available (300):    1, 1
    libinput Accel Profile Enabled (301):    1, 0
    libinput Accel Profile Enabled Default (302):    1, 0
    libinput Left Handed Enabled (303):    0
    libinput Left Handed Enabled Default (304):    0
    libinput Send Events Modes Available (274):    1, 0
    libinput Send Events Mode Enabled (275):    0, 0
    libinput Send Events Mode Enabled Default (276):    0, 0
    Device Node (277):    "/dev/input/event11"
    Device Product ID (278):    1133, 49257
    libinput Drag Lock Buttons (305):   
    libinput Horizontal Scroll Enabled (306):    1

We need to set 'libinput Accel Speed' property to 1.0 value for maximum speed.

> xinput set-prop 'Logitech USB Laser Mouse' 'libinput Accel Speed' 1.0

Make a bash script and add it to "Session and Startup":

#!/bin/bash
#xinput set-prop 15 298 1.0
#xinput set-prop 9 298 1.0

xinput set-prop 'Logitech USB Laser Mouse' 'libinput Accel Speed' 1.0
xinput set-prop 'Logitech USB Receiver' 'libinput Accel Speed' 1.0

ubuntu avahi fix for Belarus/Beltelecom/Byfly

If there's "Avahi Service discovery disabled" popup displayed, check
"host -t SOA local".
If there's something like "local has SOA record local. root.mgts.by", you can make avahi ignore that wrong configuration via editing /etc/default/avahi-daemon:

AVAHI_DAEMON_DETECT_LOCAL=0 

xubuntu 18.04 installing with nvidia graphics, tearing fixes

Before installing (running LiveCD/USB)

Edit GRUB options in the live-cd menu by adding "nomodeset" argument to the  kernel parameters string.

After installing

Repeat "nomodeset" option as described above before the first boot.

1. "apt install nvidia-driver-435"
2. Reboot
3. In "NVidia X Server Settings -> X Server Display Configuration -> Advanced..." switch on "Force Composition Pipeline".
4. Enable XFCE compositor (Menu->Window Manager Tweaks->Compositor->Enable display compositing)
5. Enable the "Synchronize drawing to the vertical blank" option in the "Window Manager Tweaks" "Compositor" tab.

Fix nvidia OpenCL/CUDA driver after resume from suspend

fixes OpenCL/CUDA/NVENC after suspend:

sudo rmmod nvidia_uvm && sudo modprobe nvidia_uvm

Backup home directory

duplicity --no-encryption --progress -vi --include-filelist incl_filelist.txt --exclude '/home/yur' /home/yur file://./home_yur
date -Isec


incl_filelist.txt:
/home/yur/.config
/home/yur/Desktop
/home/yur/Documents
/home/yur/.dosbox
/home/yur/Downloads
/home/yur/.gitconfig
/home/yur/.hgrc
/home/yur/.local
/home/yur/local_inst
/home/yur/local_src
/home/yur/.mozilla
/home/yur/.mpv
/home/yur/my_projects
/home/yur/myvim.vim
/home/yur/.nbi
/home/yur/.netbeans
/home/yur/.ssh
/home/yur/.vim
/home/yur/.vimrc
/home/yur/.vscode

G-Pen 560 in 2018, manjaro linux

cat /usr/share/X11/xorg.conf.d/70-aiptekmy.conf

Section "InputClass"                                                          
    Identifier "pen"                                                          
    MatchProduct "Aiptek|AIPTEK|aiptek"                                       
    MatchDevicePath "/dev/input/event*"                                       
    Driver "evdev"                                                           
    Option "SendCoreEvents" "true"                                            
    Option "USB" "on"                                                         
    Option "Type" "stylus"                                                    
    Option "Mode" "absolute"                                                  
    Option "zMin" "0"                                                         
    Option "zMax" "1023"                                                      
    Option               "TopX"          "185"
    Option               "TopY"          "372"
    Option               "BottomX"       "11811"
    Option               "BottomY"       "8793"
    Option               "TopZ"          "32"
EndSection

Organizing photo/video with rating

I use the following rating meaning in Shotwell:

 rejected = candidate for wastebin

 unrated = have not analyzed this photo yet

 1 = keep and return to reanalyze later and maybe then mark as 'rejected' or '2'

 2 = keep and forget

 3 = keep, needs editing

 4 = keep, do not publish -- this is original photo which was edited but saved as a diffenet image file (e.g. edited via external program and saved as IMG000_edit, so look for _edit image)

 5 = publish finished work: a) perfect out of the camera b) was edited (file has 'edited' suffix or tag)

 flagged = used to mark photos for immediate processing, work in progress

And the following workflow:

Folder tree:
YYYY/YYYY_MM_DD_tag1_tag2.../
    - video
        - edited
    - edited
       

1) Mark ranks, add tags.
2) Edit those marked with '3': mark 'flagged'
3) Export final image as '_edited', mark original as '4', clear flag.
4) Add '_edited' to Shotwell, mark as '5'.