tweak LXM performance

1. configure update manager :
   ( edit > softw sources > select fastest )
   ( policy : update everything )
   preferences > options > only show a tray icon when needed

2. driver manager
   check from time to time

3. always install microcodes

4. decrease swap usage
   old LXM vanaf 60% ram wordt de swap actiever aangesproken
   cat /proc/sys/vm/swappiness ==> zal normaaal 60 zijn
   je kan het veilig op bijvb 90% zetten
   sudo xed /etc/sysctl.conf
   add vm.swappiness=10 at the eof
   reboot is required

5. enable disk write cache
   start the Disks app
   select disk > menu > disk settings > tab “write cache ” > enable

6 reduce SSD writes
- trim setting should be enaled by LXM by default
check : cat /etc/cron.weekly/fstrim ==> no such file
- diable SSD writes
==> lloup internet
1 option : sudo xed /etc/fstab ==> fstab option noatime

1. turn on the firewall
   menu > firewall

   status ==> enable
   for SSHS , you will need to add a rule

2. install ms fonts
   software mgr > search mscorefonts
   skipped for now (arial & calibri zijn wel cool )

3. uninstall unneeded software – skipped , nauwelijks enige winst hiermee
   mono : skipped , todo ; see if required or not ( het is een CLR al net )
   oca
   remove the prgm you don’t use
   brasero ( disk burning prgm

4. firefox –skipped

tweak libre office
tools > options >> advanced > diable java runtime environment
(hierna geen macro’s meer mogelijk ?’)
dit sheelt enorm !

diable unneeded applets

startup prgm : disable support for nvidea supprot if you have no nvedo card

how to check if enaled
power options : hibernate option should not be available
ctrl+alt+end ==> no hibernate option

The command to disable hibernation:
sudo mv -v /etc/polkit-1/localauthority/50-local.d/com.ubuntu.enable-hibernate.pkla /
The command to undo the disable hibernation:
sudo mv -v /com.ubuntu.enable-hibernate.pkla /etc/polkit-1/localauthority/50-local.d

disable user switching

install dconf-editor : sudo apt install dconf-editor
run : dconf-editor

goto : org > cinamon > desktop > lockdown > set “disable-user-switching” true” ( change default > custom , then > true)

disable hibernation

— still needed on LXM 20 ?

command :
sudo mv -v /etc/polkit-1/localauthority/50-local.d/com.ubuntu.enable-hibernate.pkla /

to undo :
sudo mv -v /com.ubuntu.enable-hibernate.pkla /etc/polkit-1/localauthority/50-local.d