• openSUSE ¹⁾
• Tumbleweed ²⁾
• GNOME ³⁾

• http://download.opensuse.org/tumbleweed/iso/openSUSE-Tumbleweed-DVD-x86_64-Current.iso

http://download.opensuse.org/tumbleweed/iso/openSUSE-Tumbleweed-DVD-x86_64-Current.iso

• http://download.opensuse.org/tumbleweed/iso/openSUSE-Tumbleweed-DVD-x86_64-Current.iso.mirrorlist

• EFI/opensuse/grubx64.efi ⁴⁾
• XFS, no separate /home, separate swap partition enlarged to RAM for suspend

• http://packman.inode.at/suse/openSUSE_Tumbleweed

• Repository Priority: 98
• Provides extended multimedia support

sudo rpm --import 'http://packman.inode.at/suse/openSUSE_Tumbleweed/repodata/repomd.xml.key' && sudo zypper addrepo --gpgcheck-strict --priority '98' 'http://packman.inode.at/suse/openSUSE_Tumbleweed/packman.repo'

• TODO: I believe this works but needs re-testing; I think the entire repo is unsigned or something weird

• https://keybase.io

• Repository Priority: 98
• Provides Keybase

sudo rpm --import 'https://keybase.io/docs/server_security/code_signing_key.asc' && sudo zypper addrepo --gpgcheck --refresh 'http://prerelease.keybase.io/rpm/$basearch' 'Keybase' && sudo zypper mr -p 98 'Keybase'

• http://download.opensuse.org/tumbleweed/repo/

sudo zypper modifyrepo --disable --medium-type 'hd'

sudo zypper clean --all && sudo zypper refresh --force --services && sudo zypper dist-upgrade --details --allow-downgrade --allow-name-change --allow-arch-change --allow-vendor-change && sync

sudo zypper remove --clean-deps gnome-software PackageKit

sudo zypper addlock PackageKit gnome-software

• Installs nano
• Sets VISUAL and EDITOR to nano via environment variable
• Sets nowrap for current user

sudo zypper install 'nano' && 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'

• cpupower provides x86_energy_perf_policy

sudo zypper install filezilla keepassxc p7zip-full unar aria2 gimp hdparm nano htop wget irqbalance cpupower

rhythmbox gnome-session-wayland libsecret-tools

• gstreamer-plugins-libav and gstreamer-plugins-ugly are needed to generate video thumbnails for more media
• youtube-dl in the past needed ffmpeg to correct DASH containers or something like that

mpv ffmpeg gstreamer-plugins-libav gstreamer-plugins-ugly youtube-dl

• For GPUs using the intel kernel module

intel-vaapi-driver gstreamer-plugins-vaapi libva-utils

• https://keybase.io

keybase

• winetricks is included within the wine package and isn't a separate install

wine-staging libpulse0-32bit

wine-staging-nine Mesa-libd3d Mesa-libd3d-32bit libpulse0-32bit

torbrowser-launcher

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

• gnome-shell --replace doesn't work on Wayland session

gnome-terminal

bash -c "secret-tool lookup 'keepass' 'default' | keepassxc --pw-stdin ~/'Documents/keepass.kdbx'"

gnome-terminal --command "bash -c 'sudo zypper clean --all && sudo zypper refresh --force --services && sudo zypper dist-upgrade --details --allow-downgrade --allow-name-change --allow-arch-change --allow-vendor-change && sync && sudo rm -Rf '/usr/lib64/firefox/browser/features/'* && sudo wget -O '/etc/hosts' 'https://scripttiger.github.io/hosts-packages/alternates/fakenews-gambling/hosts' && sync && sudo zypper ps -s && read -n '1' -s -r -p 'Done''"

• Listed respectively to above

• Ctrl + Alt + T
• Ctrl + Alt + Z
• Pause or F7

• 4 Tab width
• Insert Spaces for Tab mode

• https://blog.uncensoreddns.org/

89.233.43.71

2a01:3a0:53:53::

• See VPN.AC

• Sort folders before files
• 4096 MB File Previews

• See Internet Radio

• Fixes suspend on a Dell XPS 13 (9360) ⁵⁾

mem_sleep_default='s2idle'

• https://github.com/ckb-next/ckb-next/wiki/Troubleshooting#usbhid-quirks

usbhid.quirks='0x1b1c:0x1b3c:0x20000408,0x1b1c:0x1b38:0x20000408'

usbcore.quirks='1b1c:1b3c:g,1b1c:1b38:g'

intel_iommu='on'

scsi_mod.use_blk_mq='y' dm_mod.use_blk_mq='y'

• efi is for UEFI systems
• pci is for Legacy systems
• There are other values possible should either of those not work

reboot='efi'

reboot='pci'

• GuC firmware loading/submission requires PAVP to be enabled in BIOS

i915.enable_fbc='1' i915.fastboot='1' i915.enable_guc='3'

• enable_psr at 1 and 3 cause issues ^{6) 7)}

i915.enable_psr='2'

amdgpu.deep_color='1'

radeon.deep_color='1'

• iTCO_wdt controls watchdog on some Intel platforms
• sp5100_tco controls watchdog on some AMD platforms
• nowatchdog disables both soft and hard generic watchdogs
• I don't use watchdog features and apparently this reduces power usage slightly

modprobe.blacklist='iTCO_wdt,sp5100_tco' nowatchdog

• This prevents systemd from restoring previous backlight value on reboot
• This is necessary for Power Management

systemd.restore_state='0'

• This may make lower-end machines become very unresponsive; be prepared to have some safe way of rebooting

drm.debug='0xe'

cat '/etc/gdm/custom.conf' | grep '#WaylandEnable' > '/dev/null' && sudo sed -i 's/'#WaylandEnable'/'WaylandEnable'/g' '/etc/gdm/custom.conf' && cat '/etc/gdm/custom.conf' | grep 'WaylandEnable'

• Run this before running GUI applications requiring root
• This needs re-ran after session restart

xhost +LOCAL:

gsettings set 'org.freedesktop.Tracker.Miner.Files' 'enable-monitors' 'false' && gsettings set 'org.freedesktop.Tracker.Miner.Files' 'crawling-interval' '-2' && tracker reset --hard

• Configure monitor settings fully first through GNOME Settings, including the xorg.conf snippet and custom resolutions

sudo cp ~/'.config/monitors.xml' '/var/lib/gdm/.config' && sudo chown 'gdm':'gdm' '/var/lib/gdm/.config/monitors.xml'

• Last updated: 2018/11/03
• Run this as the currently-used user first and then as gdm

sudo su 'gdm' -s '/bin/bash'

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.freedesktop.Tracker.Miner.Files' 'enable-monitors' 'false' && gsettings set 'org.freedesktop.Tracker.Miner.Files' 'crawling-interval' '-2'

• Last updated: 2018/11/03

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.freedesktop.Tracker.Miner.Files' 'enable-monitors' 'false'

gsettings set 'org.freedesktop.Tracker.Miner.Files' 'crawling-interval' '-2'

gsettings set 'org.gnome.software' 'download-updates' 'false'

• Change x to computer name

sudo hostnamectl set-hostname 'x'

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

• Enables kernel.dmesg_restrict, kernel.kptr_restrict, and kernel.sysrq
• Sets vm.swappiness to 10 and vm.vfs_cache_pressure to 50

echo -e "kernel.dmesg_restrict = 1\nkernel.kptr_restrict = 1\nkernel.sysrq = 1\nvm.swappiness = 10\nvm.vfs_cache_pressure = 50" | sudo tee '/etc/sysctl.d/99-custom.conf' > '/dev/null' && cat '/etc/sysctl.d/99-custom.conf'

• This sets hwdec and vo to vaapi, ao to pulse, and hwdec-codecs to all

mkdir -p ~/'.config/mpv' && echo -e "hwdec=vaapi\nhwdec-codecs=all\nvo=vaapi\nao=pulse" | tee ~/'.config/mpv/mpv.conf' > '/dev/null' && cat ~/'.config/mpv/mpv.conf'

vainfo | grep -e 'Driver version'

• This sets hwdec to vaapi, vo to gpu, ao to pulse, hwdec-codecs to all, and gpu-context to wayland
• If using AMD, vaapi-copy may need to be used for hwdec instead

mkdir -p ~/'.config/mpv' && echo -e "hwdec=vaapi\nhwdec-codecs=all\nvo=gpu\nao=pulse\ngpu-context=wayland" | tee ~/'.config/mpv/mpv.conf' > '/dev/null' && cat ~/'.config/mpv/mpv.conf'

vainfo | grep -e 'Driver version'

• wifi.powersave can be 2 for disabled, or 3 for enabled
• Ethernet MAC randomization breaks USB Tethering with iOS/iPhones

sudo mkdir -p '/etc/NetworkManager/conf.d' && sudo -e '/etc/NetworkManager/conf.d/99-custom.conf'

[device-mac-randomization]
wifi.scan-rand-mac-address=yes

[connection-mac-randomization]
wifi.cloned-mac-address=random

[connection]
wifi.powersave=2

• This expects a laptop with a battery
• Do not use this for desktops

• The following commands can be ran to see if they work on specific hardware

watch -n 0.1 grep \'cpu MHz\' '/proc/cpuinfo'

sudo x86_energy_perf_policy --all 'performance' --turbo-enable '1' --force

sudo x86_energy_perf_policy --all 'power' --turbo-enable '0' --force

• Change the backlight sysfs as-needed (see backlight notes) or remove altogether

sudo mkdir -p '/etc/udev/scripts.d' && sudo -e '/etc/udev/scripts.d/ac-power.sh' && sudo chmod +x '/etc/udev/scripts.d/ac-power.sh'

#!/bin/bash
# AC
echo "$(cat '/sys/class/backlight/'*'/max_brightness')" | tee '/sys/class/backlight/'*'/brightness' > '/dev/null'
x86_energy_perf_policy --all 'balance-performance' --turbo-enable '1' --force

• Change the backlight sysfs as-needed (see backlight notes) or remove altogether
• Spinesnap's lowest visible brightness is 76 ⁸⁾

sudo mkdir -p '/etc/udev/scripts.d' && sudo -e '/etc/udev/scripts.d/battery-power.sh' && sudo chmod +x '/etc/udev/scripts.d/battery-power.sh'

#!/bin/bash
# Battery
echo '3750' | tee '/sys/class/backlight/'*'/brightness' > '/dev/null'
x86_energy_perf_policy --all 'balance-power' --turbo-enable '0' --force

• Requires the above AC and Battery scripts

sudo -e '/etc/udev/rules.d/99-power.rules' && sudo udevadm control --reload

SUBSYSTEM=="power_supply", ATTR{online}=="1", RUN+="/etc/udev/scripts.d/ac-power.sh"
SUBSYSTEM=="power_supply", ATTR{online}=="0", RUN+="/etc/udev/scripts.d/battery-power.sh"

• Sets resample-method to soxr-vhq for current user

echo 'resample-method = soxr-vhq' | tee ~/'.config/pulse/daemon.conf' > '/dev/null' && cat ~/'.config/pulse/daemon.conf'

• See Secure Shell

• Max log file sizes of 50MB

sudo mkdir -p '/etc/systemd/journald.conf.d' && echo -e "[Journal]\nSystemMaxUse=50M\nRuntimeMaxUse=50M" | sudo tee '/etc/systemd/journald.conf.d/logging.conf' > '/dev/null' && cat '/etc/systemd/journald.conf.d/logging.conf'

• Add discard after defaults for the swap mountpoint ⁹⁾

sudo -e '/etc/fstab'

,discard

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

• https://blog.packagecloud.io/eng/2017/02/21/set-environment-variable-save-thousands-of-system-calls

echo 'export TZ=:/etc/localtime' | sudo tee '/etc/profile.d/tz.sh' > '/dev/null' && cat '/etc/profile.d/tz.sh'

• 4k@60Hz CVT-RB
• Fixes random display glitches
• This cannot be used on Wayland currently

cvt --verbose --reduced '3840' '2160' '60' | grep 'Modeline "3840x2160R"  533.00  3840 3888 3920 4000  2160 2163 2168 2222 +hsync -vsync'

• Change Modeline especially, and the rest as-needed

sudo -e '/etc/X11/xorg.conf.d/99-graphics.conf'

Section "Monitor"
    Identifier  "HDMI-A-0"
    Modeline "3840x2160R"  533.00  3840 3888 3920 4000  2160 2163 2168 2222 +hsync -vsync
    Option      "PreferredMode" "3840x2160R"
EndSection

sudo zypper install 'xf86-video-intel' && sudo -e '/etc/X11/xorg.conf.d/99-graphics.conf'

Section "Device"
    Identifier  "Intel HD Graphics"
    Driver      "intel"
    Option      "AccelMethod"   "SNA"
    Option      "DRI"           "3"
    Option      "TearFree"      "0"
EndSection

sudo zypper install 'xf86-video-amdgpu' && sudo -e '/etc/X11/xorg.conf.d/99-graphics.conf'

Section "Device"
    Identifier  "AMD Polaris"
    Driver      "amdgpu"
    Option      "AccelMethod"   "glamor"
    Option      "DRI"           "3"
    Option      "TearFree"      "0"
EndSection

• Expects pre-SI GPUs ¹⁰⁾
• For SI, CIK, and newer GPUs, use amdgpu, along with enabling si_support and cik_support respectively for the amdgpu kernel module ¹¹⁾

sudo zypper install 'xf86-video-ati' && sudo -e '/etc/X11/xorg.conf.d/99-graphics.conf'

Section "Device"
    Identifier  "AMD GPU"
    Driver      "radeon"
    Option      "AccelMethod"   "EXA"
    Option      "DRI"           "3"
    Option      "TearFree"      "0"
EndSection

• If using Optimus or some other multi-GPU set-up, add the BusID option

    BusID      "PCI:0:2:0"

• Use Disconnect.me strict protection Block List

• https://www.youtube.com/html5
• Everything (including H.264) should have support

rm -fv '/tmp/profiles.ini' && nano '/tmp/profiles.ini' && sed -i 's/'CHANGEME'/'$USER'/g' '/tmp/profiles.ini'

[General]
StartWithLastProfile=1

[Profile0]
Name=default
IsRelative=1
Path=CHANGEME
Default=1

• Last updated: 2018/05/07

rm -fv '/tmp/user.js' && nano '/tmp/user.js'

/******************************************************************************
 * SECTION: Custom Stuff                                                      *
 ******************************************************************************/

user_pref("mousewheel.min_line_scroll_amount", 40);
user_pref("browser.sessionstore.interval", 300000);
user_pref("extensions.pocket.enabled", false);
user_pref("reader.parse-on-load.enabled", false);
user_pref("privacy.popups.disable_from_plugins", 3);
user_pref("network.http.referer.userControlPolicy", 2);
user_pref("extensions.screenshots.system-disabled", true);
user_pref("media.autoplay.enabled", false);
user_pref("browser.tabs.drawInTitlebar", true);
user_pref("accessibility.force_disabled", 1);

/******************************************************************************
 * SECTION: GPU Acceleration                                                  *
 ******************************************************************************/

user_pref("layout.frame_rate.precise", true);
user_pref("gfx.canvas.azure.accelerated", true);
user_pref("layers.acceleration.force-enabled", true);
user_pref("browser.tabs.remote.autostart", true);
user_pref("browser.tabs.remote.force-enable", true);
user_pref("layout.css.servo.chrome.enabled", true);
user_pref("layers.omtp.enabled", true);

/******************************************************************************
 * SECTION: Privacy Settings Overrides                                        *
 ******************************************************************************/

user_pref("dom.storage.enabled",true);

/******************************************************************************
 * END                                                                        *
 ******************************************************************************/

• Path should report the current user's username, and the text Custom user.js file is present should be visible

pkill 'firefox' && rm -Rfv ~/'.mozilla' && sync && mkdir -p ~/'.mozilla/firefox/'$USER && mv '/tmp/profiles.ini' ~/'.mozilla/firefox/profiles.ini' && mv '/tmp/user.js' ~/'.mozilla/firefox/'$USER'/user.js' && sync && cat ~/'.mozilla/firefox/profiles.ini' | grep $USER && cat ~/'.mozilla/firefox/'$USER'/user.js' | grep 'user.js'

• 7 extensions

gio open 'https://addons.mozilla.org/en-US/firefox/addon/privacy-settings/versions' && gio open 'https://addons.mozilla.org/en-US/firefox/addon/decentraleyes/versions' && gio open 'https://www.eff.org/https-everywhere' && gio open 'https://www.eff.org/privacybadger' && gio open 'https://addons.mozilla.org/en-US/firefox/addon/cookie-autodelete/versions' && gio open 'https://addons.mozilla.org/en-US/firefox/addon/ublock-origin/versions' && gio open 'https://addons.mozilla.org/en-US/firefox/addon/canvasblocker/versions'

• Enable Advanced Mode

• Uncheck EasyPrivacy
• Uncheck EasyList
• Check MVPS HOSTS
• Check hpHost's Ad and tracking servers
• Check Dan Pollock's hosts file

• Last updated: 2018/02/07 ¹²⁾

https://secure.fanboy.co.nz/fanboy-problematic-sites.txt
https://secure.fanboy.co.nz/r/fanboy-ultimate.txt
https://secure.fanboy.co.nz/fanboy-antifacebook.txt
https://secure.fanboy.co.nz/fanboy-antifonts.txt
https://raw.githubusercontent.com/ryanbr/fanboy-adblock/master/fanboy-cookiemonster.txt
https://raw.githubusercontent.com/ryanbr/fanboy-adblock/master/popads-domains-list.txt
https://raw.githubusercontent.com/ryanbr/fanboy-adblock/master/fake-news.txt
https://raw.githubusercontent.com/ryanbr/fanboy-adblock/master/enhancedstats-addon.txt

• 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/espionage724/1809 LTSC' -y '/home/espionage724/Downloads/en_windows_10_enterprise_ltsc_2019_x64_dvd_74865958.iso' && sync

• Change x to a URL

youtube-dl -F x

• Download the m4a audio only format shown from the above command
• The format code is likely 140
• Change x to a URL

youtube-dl -f 140 x

/usr/share/applications

~/.local/share/applications

/usr/share/icons/hicolor

~/.local/share/icons/hicolor

zypper packages --orphaned

sudo zypper remove --clean-deps 'x'

sudo zypper patterns --installed-only

ls '/etc/zypp/repos.d'

zypper repos --priority

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

sudo rpm -e x

rm -Rf ~/'.cache/thumbnails'

• Change x to schema or omit it to show all settings

gsettings list-recursively 'x'

pkcon -c '1' refresh && pkcon update

sudo fstrim -v --all

journalctl -e _COMM='gdm-x-session'

gio open ~/'.local/share/xorg/Xorg.1.log'

LIBGL_DEBUG='verbose' glxinfo | grep 'libgl'

• https://www.geeks3d.com/gputest/

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'

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'

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

grep 'MHz' '/proc/cpuinfo'

watch -n 0.1 grep \'cpu MHz\' '/proc/cpuinfo'

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

df -hT

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

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

sudo zypper install 'hdparm'

sudo hdparm -I '/dev/sda'

systemctl suspend

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

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

• Performs both security-erase and security-erase-enhanced on /dev/sda
• Cleans EFI variables

sudo hdparm --user-master u --security-set-pass 'x' '/dev/sda' && sudo hdparm --user-master u --security-erase 'x' '/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 rm -f '/sys/firmware/efi/efivars/'* || sync && sudo efibootmgr -v

• Performs both security-erase and security-erase-enhanced on /dev/sda ¹³⁾
• Cleans EFI variables

sudo hdparm --user-master u --security-erase 'x' '/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 rm -f '/sys/firmware/efi/efivars/'* || sync && sudo efibootmgr -v

sudo zypper install 'nvme-cli'

sudo nvme format '/dev/nvme0' --reset --ses='1' --pil='0' --pi='0' --ms='0' && sync

• Could potentially cause a firmware brick or other issues with improper EFI implementations, use at own risk ¹⁴⁾
• Safer way is to use efibootmgr to remove boot entries individually

sudo rm -f '/sys/firmware/efi/efivars/'* || sync && sudo efibootmgr -v

sudo mdadm --detail-platform

• 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

• https://nouveau.freedesktop.org/wiki/Optimus

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

• In dsdt.dsl, look for _OSI values, along with Windows and Linux

sudo zypper install 'acpica'

sudo cp --force '/sys/firmware/acpi/tables/DSDT' ~/'dsdt.dat'

cd ~ && iasl -d ~/'dsdt.dat'

gio open ~/'dsdt.dsl'

sudo zypper remove 'acpica' && sync

• Use --reduced only for LCD/Non-CRT displays, and only as-needed ¹⁵⁾
• Syntax is horizontal (width), vertical (height) and refresh rate

cvt '3840' '2160' '60'

cvt --reduced '3840' '2160' '60'

--reduced

• 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'

xrandr --verbose | grep *current

• Identifier is the output port 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

• 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

ls '/sys/class/backlight'

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

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

• Change 376 to desired brightness
• Desired brightness must be under max_brightness value

echo "376" | sudo tee '/sys/class/backlight/'*'/brightness' > '/dev/null'

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

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

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

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

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

sudo firewall-cmd --list-all

sudo firewall-cmd --get-service

sudo firewall-cmd --reload

• Add --permanent as-needed to allow the rule to persist

sudo firewall-cmd --add-service=x

sudo firewall-cmd --remove-service=x

• Add --permanent as-needed to allow the rule to persist
• Change tcp to udp as-needed

sudo firewall-cmd --add-port=x/tcp

sudo firewall-cmd --remove-port=x/tcp

history -cw

• Change x in x.7z to the desired archive name
• Change CHANGEME in -pCHANGEME to the desired password

sudo zypper install 'p7zip-full'

7za a 'x.7z' -p'CHANGEME'

sudo zypper install 'exiftool'

exiftool -all= *.* -overwrite_original