Packages from this repository improve font rendering in fedora a lot:
sudo dnf copr enable dawid/better_fonts -y
sudo dnf install fontconfig-font-replacements fontconfig-enhanced-defaults levien-inconsolata-fonts -y
gsettings set org.gnome.desktop.interface document-font-name "Cantarell 11"
gsettings set org.gnome.desktop.interface font-name "Cantarell 11"
gsettings set org.gnome.desktop.interface monospace-font-name "Inconsolata 13"
CPU benchmark from Dell Precision 5540 i5-9400H
$ sysbench cpu run --time=5
sysbench 1.0.20 (using system LuaJIT 2.1.0-beta3)
Running the test with following options:
Number of threads: 1
Initializing random number generator from current time
Prime numbers limit: 10000
Initializing worker threads...
Threads started!
CPU speed:
events per second: 1352.90
General statistics:
total time: 5.0007s
total number of events: 6767
Latency (ms):
min: 0.70
avg: 0.74
max: 1.59
95th percentile: 0.77
sum: 4999.03
Threads fairness:
events (avg/stddev): 6767.0000/0.00
execution time (avg/stddev): 4.9990/0.00
CPU benchmark from Dell Optiplex 3060 micro i3-8100T
$ sysbench cpu run --time=5
sysbench 1.0.20 (using system LuaJIT 2.1.0-beta3)
Running the test with following options:
Number of threads: 1
Initializing random number generator from current time
Prime numbers limit: 10000
Initializing worker threads...
Threads started!
CPU speed:
events per second: 1029.12
General statistics:
total time: 5.0007s
total number of events: 5148
Latency (ms):
min: 0.97
avg: 0.97
max: 1.11
95th percentile: 0.97
sum: 4999.22
Threads fairness:
events (avg/stddev): 5148.0000/0.00
execution time (avg/stddev): 4.9992/0.00
Edit file /etc/sysconfig/firewalld:
FIREWALLD_ARGS=--debug=10
List all routes in system:
route -n
Get route for a specific IP:
ip route get 1.1.1.1
Create a file located in /usr/lib/systemd/system-sleep directory:
#!/bin/sh
if [ "${1}" == "pre" ]; then
nordvpn d
elif [ "${1}" == "post" ]; then
echo "Hello"
fi
14:27 $ (set -x; sleep 1 && sleep 2)
+ sleep 1
+ sleep 2
while ! nc -w5 -z 10.0.0.100 22; do echo "hello"; done
Run the following command to check the suspend mode:
cat /sys/power/mem_sleep
If the output looks like this:
[s2idle] deep
It means that very inefficient suspend mode is active (drains battery from 100% to 0 in 9 hours). To enable “deep” mode, edit file /etc/default/grub and append mem_sleep_default=deep to GRUB_CMDLINE_LINUX:
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="rd.lvm.lv=fedora/root rd.lvm.lv=fedora/swap rhgb quiet mem_sleep_default=deep"
GRUB_DISABLE_RECOVERY="true"
GRUB_ENABLE_BLSCFG=true
Apply changes:
sudo grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg
Restart your laptop and verify changes:
$ cat /sys/power/mem_sleep
s2idle [deep]
Fedora typically keeps 3 latest kernel versions. However, what if you want to keep an old specific kernel version which is known to work well with your system? First, we need to install a dnf plugin that allows us to keep a specific version of any package:
sudo dnf install python3-dnf-plugins-extras-versionlock
Lets find all available kernel versions for your system:
sudo dnf list kernel --showduplicates
Install that specific version of the kernel:
sudo dnf install kernel-5.3.7-301.fc31
And lock it:
sudo dnf versionlock add kernel-5.3.7-301.fc31
To remove the lock:
sudo dnf versionlock delete kernel-5.3.7-301.fc31