User Tools

Site Tools


distros:fedora_workstation_gnome

Table of Contents

Information

  • Fedora Workstation 1)
  • 36

Download

Workstation

Updated Live Images

Installation Notes

  • EFI/fedora/shimx64.efi 2)

Partitioning

  1. :!: Delete /home
  2. :!: Delete /
  3. Set /boot to use XFS
  4. Re-create / without specifying a size 3)
  5. Set / to use XFS

HOSTS

Initial

  • :!: Only run this once as it overwrites /etc/hosts-bak on subsequential runs
wget -O '/tmp/hosts-tmp' 'https://raw.githubusercontent.com/StevenBlack/hosts/master/alternates/fakenews-gambling-porn/hosts' && sudo cp '/etc/hosts' '/etc/hosts-bak' && sudo mv '/tmp/hosts-tmp' '/etc/hosts' && sudo restorecon -F -I -R '/etc/hosts' && sync

Update

wget -O '/tmp/hosts-tmp' 'https://raw.githubusercontent.com/StevenBlack/hosts/master/alternates/fakenews-gambling-porn/hosts' && sudo mv '/tmp/hosts-tmp' '/etc/hosts' && sudo restorecon -F -I -R '/etc/hosts' && sync

Verify

cat '/etc/hosts' | grep 'Date:'
sudo -e '/etc/hosts'

Restore

sudo cp '/etc/hosts-bak' '/etc/hosts' && sync

DNF

  • Disables Delta RPMs with deltarpm=false
  • Downloads packages from the fastest mirror with fastestmirror=true
cat '/etc/dnf/dnf.conf' | grep 'deltarpm=false' || echo 'deltarpm=false' | sudo tee --append '/etc/dnf/dnf.conf' > '/dev/null' && cat '/etc/dnf/dnf.conf'
cat '/etc/dnf/dnf.conf' | grep 'fastestmirror=true' || echo 'fastestmirror=true' | sudo tee --append '/etc/dnf/dnf.conf' > '/dev/null' && cat '/etc/dnf/dnf.conf'

Repositories

su

  • Useful for fresh installations where repo(s) can be added, and then package updates can be ran afterwards unattended without having sudo timeout and re-prompt for the password
sudo su

calcastor/gnome-patched Copr

sudo dnf copr enable 'calcastor/gnome-patched'

RPM Fusion

free

sudo rpm --import 'https://rpmfusion.org/keys?action=AttachFile&do=get&target=RPM-GPG-KEY-rpmfusion-free-fedora-2020' && sync && sudo dnf install 'https://mirrors.rpmfusion.org/free/fedora/rpmfusion-free-release-'$(rpm -E %fedora)'.noarch.rpm' -y && sync

nonfree

sudo rpm --import 'https://rpmfusion.org/keys?action=AttachFile&do=get&target=RPM-GPG-KEY-rpmfusion-nonfree-fedora-2020' && sync && sudo dnf install 'https://mirrors.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-'$(rpm -E %fedora)'.noarch.rpm' -y && sync

RawhideKernelNodebug

sudo dnf config-manager --add-repo='http://dl.fedoraproject.org/pub/alt/rawhide-kernel-nodebug/fedora-rawhide-kernel-nodebug.repo'

Software

Update

System

sudo dnf distro-sync -y && sync
sudo dnf autoremove

modesetting

  • Forces use of modesetting with Xorg by removing amdgpu, ati, intel, and nouveau DDX drivers
sudo dnf remove xorg-x11-drv-amdgpu xorg-x11-drv-ati xorg-x11-drv-intel xorg-x11-drv-nouveau

Firmware

sudo fwupdmgr refresh --force && sudo fwupdmgr update --verbose

Flatpaks

flatpak update && sudo flatpak update

GNU nano

  • Installs nano
  • Sets VISUAL and EDITOR to nano via environment variable
  • Sets nowrap for current user
sudo dnf install 'nano' -y && export 'VISUAL=nano' && export 'EDITOR=nano' && echo -e 'export VISUAL=nano\nexport EDITOR=nano' | sudo tee '/etc/profile.d/editor-nano.sh' > '/dev/null' && cat '/etc/profile.d/editor-nano.sh' && mkdir -p ~/'.config/nano' && echo 'set nowrap' | tee ~/'.config/nano/nanorc' > '/dev/null' && cat ~/'.config/nano/nanorc'

RPM Fusion

Tainted Repos

  • Provides interesting firmware files
sudo dnf install 'rpmfusion-free-release-tainted' 'rpmfusion-nonfree-release-tainted'

Metadata and Multimedia

sudo dnf groupupdate 'core' && sudo dnf groupupdate 'multimedia' --setop='install_weak_deps=False' --exclude='PackageKit-gstreamer-plugin' && sudo dnf groupupdate 'sound-and-video' && sync

NVIDIA

  • This installs NVIDIA proprietary graphics drivers and necessary packages, along with building the module afterwards
  • :!: Reboot after running this
  • :!: 2022/10/05: RTX 3000 series with displays connected via HDMI may not boot with 515.76. Not sure how to downgrad the driver, but alternatively keep the display unplugged during boot, and plug it in later
sudo dnf install akmod-nvidia xorg-x11-drv-nvidia-cuda xorg-x11-drv-nvidia-cuda-libs vulkan vdpauinfo libva-vdpau-driver libva-utils -y && sync && sudo akmods --force && sync

General

sudo dnf install evolution filezilla gimp keepassxc transmission-gtk aria2 hdparm htop kernel-tools lm_sensors p7zip p7zip-plugins unar wget xfsprogs-xfs_scrub xrandr 

RPM Fusion

free

ffmpeg-libs mpv youtube-dl

nonfree

Intel

intel-media-driver

Steam

steam mangohud

Tainted

libdvdcss \*-firmware

ROCm

rocm-opencl rocm-smi

ckb-next

Wine

wine winetricks mangohud

Tor Browser

torbrowser-launcher

Game Controllers

  • Necessary for Xbox 360 controllers
  • Not necessary for a Steam Controller
kernel-modules-extra

Google Chrome

sudo rpm --import 'https://dl-ssl.google.com/linux/linux_signing_key.pub' && sudo dnf install 'https://dl.google.com/linux/direct/google-chrome-stable_current_x86_64.rpm'

Keybase

  • :!: Keybase uses GPU in the background, and crashes amdgpu (see #25070)
  • :!: TODO: See if there's a command-line Keybase for Fedora
'https://prerelease.keybase.io/keybase_amd64.rpm'

Settings

Keyboard Shortcuts

  • See game notes for Game.sh script
gnome-terminal
bash -c "secret-tool lookup 'keepass' 'default' | keepassxc --pw-stdin ~/'Documents/keepass.kdbx'"
gnome-terminal --command "sudo sh -c 'dnf clean 'all' && dnf distro-sync -y && sync && flatpak update && wget -O '/etc/hosts' 'https://raw.githubusercontent.com/StevenBlack/hosts/master/alternates/fakenews-gambling-porn/hosts' && restorecon -F -I -R '/etc/hosts' && sync && fstrim --all --verbose && sync && read -n '1' -s -r -p 'Done' && sleep '2''"
gnome-terminal -- sh -c ~/'.local/scripts/Game.sh'

Game.sh

  • TODO: Move this somewhere else
mkdir -p ~/'.local/scripts' && nano ~/'.local/scripts/Game.sh' && chmod +x ~/'.local/scripts/Game.sh'

Keys

  • Listed respectively to above
  • Ctrl + Alt + T
  • Ctrl + Alt + Z
  • Pause or F7
  • F6
  • F8

Printer

  • Internet Printing Protocol (ipps) → HP → IPP Everywhere ™
  • Color Mode: Device Gray
  • Administration → Set As Server Default
ipps://192.168.1.164/ipp/print

Network

1.1.1.1 For Families DNS

1.1.1.2,1.0.0.2
2606:4700:4700::1112,2606:4700:4700::1002

Nautilus

  • Sort Folders Before Files

Rhythmbox

Terminal

  • 10-notch Transparency

Kernel Options

Magic SysRq key

echo 'kernel.sysrq = 1' | sudo tee '/etc/sysctl.d/99-sysrq.conf' > '/dev/null' && cat '/etc/sysctl.d/99-sysrq.conf'

Intel Perf Counters

echo 'dev.i915.perf_stream_paranoid = 0' | sudo tee '/etc/sysctl.d/99-i915-perf.conf' > '/dev/null' && cat '/etc/sysctl.d/99-i915-perf.conf'

GRUB

Config

sudo grubby --update-kernel='ALL' --args=''

PCI

sudo grubby --args='pci=pcie_bus_perf' --update-kernel='ALL'

Intel Optimization

  • This enables Framebuffer compression, Panel self-refresh, and i915 Fastboot
  • This also enables GuC and HuC firmware loading if supported by the hardware
sudo grubby --update-kernel='ALL' --args='i915.enable_fbc=1 i915.enable_psr=1 i915.fastboot=1 i915.enable_guc=3'

AMDGPU Overclocking

  • Allows use of Overdrive options for overclocking and increasing the Power Limit
sudo grubby --args='amdgpu.ppfeaturemask=0xffffffff' --update-kernel='ALL'

Verify

cat '/sys/module/amdgpu/parameters/ppfeaturemask' | grep '0xffffffff'

GNOME

Notes

  • :!: Disable color calibration for the monitor in GNOME Settings 4)

Hide Top Bar

External Monitor Settings

  • This copies the configured monitor settings from the current user to gdm and also applies it to the log-in screen
  • Notably useful for setting a laptop's built-in screen as disabled for the log-in screen
sudo cp ~/'.config/monitors.xml' ~gdm/'.config/monitors.xml' && sudo chown 'gdm':'gdm' ~gdm/'.config/monitors.xml'

Undo

sudo rm ~gdm/'.config/monitors.xml' && sync

Wayland

  • :!: ckb-next auto light shutoff requires Xorg
  • :!: GPU scaling for resolution requires Xorg
  • :!: Steam and various games through Wine work better through Xorg
  • Xorg can be selected at log-in 5)

Tweaks

sudo mkdir -p '/etc/environment.d' && echo 'MUTTER_DEBUG_ENABLE_ATOMIC_KMS=0' | sudo tee '/etc/environment.d/99-mutter-tweaks.conf' > '/dev/null' && cat '/etc/environment.d/99-mutter-tweaks.conf'
sudo mkdir -p '/etc/environment.d' && echo 'CLUTTER_PAINT=disable-dynamic-max-render-time=1' | sudo tee '/etc/environment.d/99-clutter-tweaks.conf' > '/dev/null' && cat '/etc/environment.d/99-clutter-tweaks.conf'

Settings

All-in-one

  • Last updated: 2022/08/23
gsettings reset 'org.gnome.shell' 'app-picker-layout' && gsettings set 'org.gnome.desktop.interface' 'enable-animations' 'false' && gsettings set 'org.gnome.desktop.peripherals.touchpad' 'send-events' 'disabled-on-external-mouse' && gsettings set 'org.gnome.desktop.peripherals.touchpad' 'natural-scroll' 'false' && gsettings set 'org.gnome.desktop.peripherals.mouse' 'accel-profile' 'flat' && gsettings set 'org.gnome.desktop.peripherals.touchpad' 'tap-to-click' 'false' && gsettings set 'org.gnome.desktop.peripherals.touchpad' 'tap-and-drag' 'false' && gsettings set 'org.gnome.desktop.peripherals.touchpad' 'disable-while-typing' 'false' && gsettings set 'org.gnome.desktop.peripherals.touchpad' 'click-method' 'areas' && gsettings set 'org.gnome.desktop.interface' 'clock-show-date' 'true' && gsettings set 'org.gnome.software' 'download-updates' 'false' && gsettings set 'org.gnome.desktop.interface' 'clock-show-weekday' 'true'

Individual

  • Last updated: 2022/08/23
gsettings reset 'org.gnome.shell' 'app-picker-layout'
gsettings set 'org.gnome.desktop.interface' 'enable-animations' 'false'
gsettings set 'org.gnome.desktop.peripherals.touchpad' 'send-events' 'disabled-on-external-mouse'
gsettings set 'org.gnome.desktop.peripherals.touchpad' 'natural-scroll' 'false'
gsettings set 'org.gnome.desktop.peripherals.mouse' 'accel-profile' 'flat'
gsettings set 'org.gnome.desktop.peripherals.touchpad' 'tap-to-click' 'false'
gsettings set 'org.gnome.desktop.peripherals.touchpad' 'tap-and-drag' 'false'
gsettings set 'org.gnome.desktop.peripherals.touchpad' 'disable-while-typing' 'false'
gsettings set 'org.gnome.desktop.peripherals.touchpad' 'click-method' 'areas'
gsettings set 'org.gnome.desktop.interface' 'clock-show-date' 'true'
gsettings set 'org.gnome.software' 'download-updates' 'false'
gsettings set 'org.gnome.desktop.interface' 'clock-show-weekday' 'true'

Hostname

  • Change x to computer name
hostnamectl set-hostname 'x'

Keybase

  • :!: Run after initial install
run_keybase

KeePassXC

Settings

  • General → [ ] Load previous databases on startup
  • Security → [x] Use DuckDuckGo service to download website icons

Add Database Password to GNOME Keyring

secret-tool store --label='KeePass' 'keepass' 'default'

lm_sensors

  • --auto can be used here, but if modules need to be added to /etc/modules, not using -auto will allow sensors to do it
sudo sensors-detect

mpv

mkdir -p ~/'.config/mpv' && nano ~/'.config/mpv/mpv.conf'
profile=gpu-hq
scale=ewa_lanczossharp
cscale=ewa_lanczossharp
video-sync=display-resample
interpolation
tscale=oversample

Laptop Power Management

Secure Shell

  • See Client notes to generate/restore public key

Drive Maintenance

Trim

sudo systemctl enable 'fstrim.timer' --now && sudo systemctl start 'fstrim' && sync && sudo systemctl status 'fstrim' -l

XFS Scrub

  • :!: Enable in all cases since it's likely both / and /boot are XFS
sudo systemctl enable 'xfs_scrub_all.timer' --now && sudo systemctl start 'xfs_scrub_all' && sync && sudo systemctl status 'xfs_scrub_all' -l

UTC

  • Set RTC to UTC
  • :!: Needed if Windows is installed first
  • :!: Windows should also be set to UTC
sudo timedatectl set-local-rtc '0'

Verify

timedatectl | grep local

Wine

Wayland

i915 HDMI

  • This sets RGB Full on HDMI, and the content type to Game on HDMI for low-latency
  • TODO: How this was figured out, and where to put it
  • TODO: Verify dri/card number or wildcard it; was 1 on Fedora, but 0 on Ubuntu
proptest -M 'i915' -D '/dev/dri/card1' '103' 'connector' '98' '1'
proptest -M 'i915' -D '/dev/dri/card1' '103' 'connector' '107' '4'

Xorg

NVIDIA

  • :!: Run Xorg as Root
  • This is required to allow overclocking and fan control
echo 'needs_root_rights = yes' | sudo tee --append '/etc/X11/Xwrapper.config' > '/dev/null' && cat '/etc/X11/Xwrapper.config'

Mozilla Firefox

  • See Firefox if old configuration is needed, otherwise use Firefox Sync

Tweaks

  • Enables smooth-scrolling
sudo mkdir -p '/etc/environment.d' && echo 'MOZ_USE_XINPUT2=1' | sudo tee '/etc/environment.d/99-firefox-tweaks.conf' > '/dev/null' && cat '/etc/environment.d/99-firefox-tweaks.conf'

DNS over HTTPS

https://dns.quad9.net/dns-query

Server

  • For workstations that run servers as a secondary directive
  • For headless servers, use Fedora Server

Enable SSH

sudo systemctl enable --now 'sshd'

Automatic Updates

Service

sudo -e '/etc/systemd/system/fedora-up.service'
[Service]
Type=oneshot
ExecStartPre='/usr/bin/dnf' clean 'all'
ExecStart='/usr/bin/dnf' distro-sync -y
ExecStart='/usr/bin/dnf' autoremove -y
ExecStartPost='/usr/bin/sync'
ExecStartPost='/usr/bin/systemctl' reboot

Timer

  • 03:00 Oak
sudo -e '/etc/systemd/system/fedora-up.timer' && sudo systemctl daemon-reload && sudo systemctl enable 'fedora-up.timer' --now
[Unit]
Description=Software Package Maintenance and Updater
After=network-online.target
Wants=network-online.target

[Timer]
OnCalendar=*-*-* 03:00:00
Persistent=true

[Install]
WantedBy=timers.target

Notable Folders and Commands

Extract ISO

  • D is the destination you want the extracted files to go
  • x is the ISO you want to extract files from
  • No space after the -o flag is intentional
  • This is primarily useful for copying Windows ISO images to a FAT32 flash drive
7z x -o'D' -y x
7z x -o'/run/media/espionage724/LTSC 2019' -y '/home/espionage724/Downloads/en_windows_10_enterprise_ltsc_2019_x64_dvd_be3c8ffb.iso' && sync && sync

youtube-dl

Download

rm -f '/tmp/youtube-dl' && wget -O '/tmp/youtube-dl' 'https://yt-dl.org/downloads/latest/youtube-dl' && chmod +x '/tmp/youtube-dl'

Show Formats

  • Change x to a URL
'/tmp/youtube-dl' --list-formats x

Download Media

  • Change x to a URL
  • bestaudio can be changed to bestvideo for just video, or best for best video with audio
'/tmp/youtube-dl' --extract-audio --format 'bestaudio' x

M4A Audio

  • Ideally for if iOS devices will be involved
'/tmp/youtube-dl' --extract-audio --format 'bestaudio' --audio-format 'm4a' x

MP3 Audio

'/tmp/youtube-dl' --extract-audio --format 'bestaudio' --audio-format 'mp3' x

Shortcuts

/usr/share/applications
~/.local/share/applications

Icons

/usr/share/icons/hicolor
~/.local/share/icons/hicolor

Anaconda Module Blacklists

sudo -e '/etc/modprobe.d/anaconda-blacklist.conf'

YUM/DNF Repos

gio open '/etc/yum.repos.d'

DNF History

Transaction IDs

sudo dnf history

Undo

  • Change x to a transaction ID found above
sudo dnf history undo x

GPG Keys

Check Keys

rpm -q gpg-pubkey --qf '%{NAME}-%{VERSION}-%{RELEASE}\t%{SUMMARY}\n'

Remove Keys

sudo rpm -e x

DNF Autoremove Fix

  • Removes the initially-installed kernel in order to fix dnf autoremove if it's broken
  • :!: This will vary depending on the Fedora image version used
sudo dnf list --installed 'kernel'*
sudo dnf remove *5.3.7* && sync

Re-generate Thumbnails

rm -Rf ~/'.cache/thumbnails'

List GNOME gsettings

  • Change x to schema or omit it to show all settings
gsettings list-recursively 'x'

GNOME App Grid Reset

gsettings reset 'org.gnome.shell' 'app-picker-layout'

GNOME Software Maintenance

pkcon -c '1' refresh && pkcon update

fstrim

sudo fstrim --verbose --all

SELinux Re-label

sudo touch '/.autorelabel'

GNOME Monitors Reset

rm -f ~/'.config/monitors.xml' ~/'.config/monitors.xml~'

PulseAudio Reset

rm -f ~/'.config/pulse/'*

Xorg Debug

journalctl -e _COMM='gdm-x-session'
gio open ~/'.local/share/xorg/Xorg.1.log'

Verify DRI3

LIBGL_DEBUG='verbose' glxinfo | grep 'libgl'

GpuTest

Execute

HDTV

  • 1280×720
wget -O '/tmp/GpuTest_Linux_x64.zip' 'http://www.ozone3d.net/gputest/dl/GpuTest_Linux_x64_0.7.0.zip' && unzip '/tmp/GpuTest_Linux_x64.zip' -d '/tmp' && cd '/tmp/GpuTest_Linux_x64_'* && ./GpuTest /test='fur' /width='1280' /height='720'
cd '/tmp/GpuTest_Linux_x64_'* && ./GpuTest /test='fur' /width='1280' /height='720'
/fullscreen /benchmark /benchmark_duration_ms='15000'
NVIDIA Optimus

wget -O '/tmp/GpuTest_Linux_x64.zip' 'http://www.ozone3d.net/gputest/dl/GpuTest_Linux_x64_0.7.0.zip' && unzip '/tmp/GpuTest_Linux_x64.zip' -d '/tmp' && cd '/tmp/GpuTest_Linux_x64_'* && __NV_PRIME_RENDER_OFFLOAD='1' __GLX_VENDOR_LIBRARY_NAME='nvidia' ./GpuTest /test='fur' /width='1280' /height='720'

FHD

  • 1920×1080
wget -O '/tmp/GpuTest_Linux_x64.zip' 'http://www.ozone3d.net/gputest/dl/GpuTest_Linux_x64_0.7.0.zip' && unzip '/tmp/GpuTest_Linux_x64.zip' -d '/tmp' && cd '/tmp/GpuTest_Linux_x64_'* && ./GpuTest /test='fur' /width='1920' /height='1080'
cd '/tmp/GpuTest_Linux_x64_'* && ./GpuTest /test='fur' /width='1920' /height='1080'
/fullscreen /benchmark /benchmark_duration_ms='15000'

UHDTV1

  • 3840×2160
wget -O '/tmp/GpuTest_Linux_x64.zip' 'http://www.ozone3d.net/gputest/dl/GpuTest_Linux_x64_0.7.0.zip' && unzip '/tmp/GpuTest_Linux_x64.zip' -d '/tmp' && cd '/tmp/GpuTest_Linux_x64_'* && ./GpuTest /test='fur' /width='3840' /height='2160'
cd '/tmp/GpuTest_Linux_x64_'* && ./GpuTest /test='fur' /width='3840' /height='2160'
/fullscreen /benchmark /benchmark_duration_ms='15000'

Cleanup

rm -Rf '/tmp/GpuTest_Linux_'* && cd ~ && sync

Show Sensors

sudo dnf install 'lm_sensors' -y && sudo sensors-detect --auto && sudo watch -n0.1 sensors

Show CPU Frequency

grep 'MHz' '/proc/cpuinfo'
watch --interval '0.5' grep \'cpu MHz\' '/proc/cpuinfo'

OpenSSL Supported Ciphers

openssl ciphers -v | awk '{print $2}' | sort | uniq

Partition Information

  • Both commands present the same information
df -hT
df --human-readable --print-type

Encryption Information

sudo cryptsetup -v status '/dev/dm-0'

ATA Secure Erase

  • :!: All hdparm commands below assume actions to be performed on /dev/sda

Preparation

sudo dnf install 'hdparm' && sync
sudo hdparm -I '/dev/sda'
sync && systemctl suspend

ATA Secure Erase

sudo blkdiscard --verbose '/dev/sda'
sudo hdparm --user-master u --security-set-pass 'x' '/dev/sda' && sudo hdparm --user-master u --security-erase-enhanced 'x' '/dev/sda' && sync
sudo hdparm --user-master u --security-set-pass 'x' '/dev/sda' && sudo hdparm --user-master u --security-erase 'x' '/dev/sda' && sync

NVMe Erase

  • NVMe Erase from the start page lands here and I usually use a Ubuntu LiveUSB to do this, hence the apt command
sudo apt install 'nvme-cli' -y && sync
sudo dnf install 'nvme-cli' -y && sync
sudo nvme format '/dev/nvme0' --reset --ses='1' --pil='0' --pi='0' --ms='0' && sync

Clean EFI Variables

  • :!: Could potentially cause a firmware brick or other issues with improper EFI implementations, use at own risk 7)
  • Safer way is to use efibootmgr to remove boot entries individually
sudo rm -f '/sys/firmware/efi/efivars/'* || sync && sudo efibootmgr -v

RAID

Controller Details

  • This can be used to get the Oprom version for Intel RST
sudo mdadm --detail-platform

Create Software RAID

  • :?: Came from old notes; I assume this worked at some point, but in any case, the syntax looks nice :p
sudo mdadm --create '/dev/md0' --name='RAID' --level='0' --raid-devices='3' '/dev/sda' '/dev/sdb' '/dev/sdc' --verbose

VGA Switcheroo Power States

sudo cat '/sys/kernel/debug/vgaswitcheroo/switch'

ACPI Tables

  • In dsdt.dsl, look for _OSI values, along with Windows and Linux
sudo dnf install 'acpica-tools'
sudo cp --force '/sys/firmware/acpi/tables/DSDT' ~/'dsdt.dat'
cd ~ && iasl -d ~/'dsdt.dat'
gio open ~/'dsdt.dsl'
sudo dnf remove 'acpica-tools' && sync

Display EDID Info

sudo dnf install 'monitor-edid'
monitor-edid

Custom Resolutions

Generate Modeline

  • Use --reduced only for LCD/Non-CRT displays, and only as-needed 8)
  • Syntax is horizontal (width), vertical (height) and refresh rate
cvt '3840' '2160' '60'
cvt --reduced '3840' '2160' '60'
--reduced

Temporarily Apply

  • Changes are lost after reboot
  • Values after --newmode are from the above generate command, and is everything after Modeline
xrandr --newmode "3840x2160R"  533.00  3840 3888 3920 4000  2160 2163 2168 2222 +hsync -vsync
xrandr --addmode 'HDMI-A-0' '3840x2160R'
xrandr --output 'HDMI-A-0' --mode '3840x2160R'

Verify

xrandr --verbose | grep *current

Permanently Apply

  • Identifier is the name of the port on the GPU the display is connected to
  • Modeline is from the above generate command, including the text Modeline
  • PreferredMode is the custom resolution name generated
Section "Monitor"
    Identifier  "HDMI-A-0"
    Modeline x
    Option      "PreferredMode" "3840x2160R"
EndSection

Backlight

Notes

  • The following commands with an asterisk expect only one backlight controller at /sys/class/backlight
  • This was only tested on one laptop with intel_backlight
  • See Power Management notes on how to add backlight changes to a udev script
  • See backlight for more details

Controller Name

ls '/sys/class/backlight'

Query Current Brightness

cat '/sys/class/backlight/'*'/brightness'

Query Max Brightness

cat '/sys/class/backlight/'*'/max_brightness'

Set Custom Brightness

  • Change 376 to desired brightness
  • Desired brightness must be under max_brightness value
echo "376" | sudo tee '/sys/class/backlight/'*'/brightness' > '/dev/null'

Set Max Brightness

echo "$(cat '/sys/class/backlight/'*'/max_brightness')" | sudo tee '/sys/class/backlight/'*'/brightness' > '/dev/null'

Intel GuC Firmware

sudo cat '/sys/kernel/debug/dri/0/i915_guc_info'
sudo cat '/sys/kernel/debug/dri/0/i915_guc_load_status'

HT/SMT Information

grep -e "processor" -e "core id" -e "^$" /proc/cpuinfo

Optimal GCC compiler flags

gcc -v -E -x c -march=native -mtune=native - < /dev/null 2>&1 | grep cc1 | perl -pe 's/ -mno-\S+//g; s/^.* - //g;'

Privacy

Clear Terminal History

history -cw

Create 7z Password Archive

  • Change 7ZIPNAME in 7ZIPNAME.7z to the desired archive name
  • Change PASS in -pPASS to the desired password
  • Change x to the file or folder to add to the archive
7za a '7ZIPNAME.7z' -p'PASS' 'x'
7za a 'x.7z' -p'x' 'x'

oathtool

  • x is a secret without &digits=6
sudo dnf install 'oathtool'
oathtool --totp -b 'x'

Remove EXIF data

sudo dnf install 'perl-Image-ExifTool'
exiftool -all= *.* -overwrite_original
2)
EFI file to boot and in the case of (quirky) InsydeH2O UEFI implementations, add to SecureBoot trust; doesn't matter if SecureBoot is enabled or not
3)
this uses all avaialble space
4)
GNOME for several versions now makes the screen color too warm on Xorg
5)
there used to be notes on disabling Wayland on the log-in screen, but that's not necessary
6)
modesetting functions better than amdgpu and intel DDX drivers in 2022
7)
personally tested fine on several Acer and Dell computers
8)
useful for reducing amount of bandwidth over cables, particularly in-case of unstable 4k@60Hz set-ups
distros/fedora_workstation_gnome.txt · Last modified: 2022/10/05 14:47 by Sean Rhone