network problems:
add rc-manager=symlink to [main] section in
/etc/NetworkManager/NetworkManager.conf,
remove /etc/resolv.conf and restart NetworkManager (systemctl restart NetworkManager).
This way resolv.conf will be managed by NetworkManager instead of netconfig
screen tearing on intel:
first install xf86-video-intel
then you create config file:
/etc/X11/xorg.conf.d/20-intel.conf
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "TearFree" "true"
EndSection
reboot