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distros:solus [2017/09/16 22:41] – [systemd Journal] Sean Rhonedistros:solus [2017/09/16 23:00] Sean Rhone
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 +====== Information ======
  
 +  * Solus ((https://solus-project.com))
 +  * Budgie ((https://solus-project.com/budgie))
 +
 +====== Download ======
 +
 +  * https://solus-project.com/download
 +
 +====== Installation Notes ======
 +
 +  * ''\EFI\goofiboot\goofibootx64.efi'' ((Acer Trust))
 +
 +====== Repositories ======
 +
 +===== Stable =====
 +
 +  * https://packages.solus-project.com/shannon
 +  * Used by-default ((only referenced to point to above URL for package checking; URL may change with future Solus releases))
 +
 +===== Unstable =====
 +
 +  * https://packages.solus-project.com/unstable
 +  * This removes the stable repository and adds the unstable one
 +
 +  sudo eopkg rr 'Solus' && sudo eopkg ar 'Solus Unstable' 'https://packages.solus-project.com/unstable/eopkg-index.xml.xz'
 +
 +====== Software ======
 +
 +===== Update =====
 +
 +****
 +
 +  sudo eopkg upgrade -y && sync
 +
 +===== GNU nano =====
 +
 +  * Sets as system-wide default editor
 +  * Sets ''nowrap'' and ''nonewlines'' for current user
 +
 +  export 'EDITOR=nano' && echo 'Defaults editor = /usr/bin/nano' | sudo tee --append '/etc/sudoers.d/nano' > '/dev/null' && echo 'set nowrap' | tee --append ~/'.nanorc' > '/dev/null' && echo 'set nonewlines' | tee --append ~/'.nanorc' > '/dev/null'
 +
 +===== General =====
 +
 +****
 +
 +  sudo eopkg install aria2 brasero filezilla gimp hplip htop keepassx p7zip perl-image-exiftool xfsprogs hdparm ffmpegthumbnailer evolution gnome-contacts mtpfs
 +
 +===== Intel Graphics =====
 +
 +****
 +
 +  libva-intel-driver xorg-driver-video-intel
 +
 +===== AMD Graphics =====
 +
 +****
 +
 +  libvdpau xorg-driver-video-radeon
 +
 +===== Wine =====
 +
 +****
 +
 +  wine-32bit winetricks libgnutls-32bit libjpeg-turbo-32bit libpng-32bit libtxc_dxtn-32bit cabextract
 +
 +===== Steam =====
 +
 +****
 +
 +  steam
 +
 +===== Steam Controller =====
 +
 +  * https://github.com/kozec/sc-controller
 +
 +  sc-controller
 +
 +====== Settings ======
 +
 +===== Keyboard Shortcuts =====
 +
 +  gnome-terminal
 +
 +  keepassxc
 +
 +===== gedit =====
 +
 +  * 4 Tab width
 +  * Insert Spaces for Tab mode
 +
 +===== Network =====
 +
 +==== VPN.AC ====
 +
 +  * See [[information:vpn.ac | VPN.AC]]
 +
 +==== DNS.WATCH DNS ===
 +
 +=== IPv4 ===
 +
 +  84.200.69.80
 +
 +  84.200.70.40
 +
 +=== IPv6 ==
 +
 +  2001:1608:10:25::1c04:b12f
 +
 +  2001:1608:10:25::9249:d69b
 +
 +===== Nautilus =====
 +
 +  * Sort folders before files
 +  * 2GB File Previews
 +
 +===== Rhythmbox =====
 +
 +  * See [[Information:Internet Radio]]
 +
 +===== clr-boot-manager =====
 +
 +  * Add settings separated by a space
 +
 +  sudo -e '/etc/kernel/cmdline'
 +
 +==== blk_mq ====
 +
 +  * See [[distros:solus#i_o_schedulers | I/O Schedulers]] in order to select an I/O scheduler
 +
 +  scsi_mod.use_blk_mq=y
 +
 +==== Linux ====
 +
 +****
 +
 +  acpi_osi=Linux
 +
 +==== i915 ====
 +
 +****
 +
 +  i915.enable_guc_loading=2 i915.enable_guc_submission=2
 +
 +==== Disable HT ====
 +
 +  * Set to half of total cores if Intel HT is enabled
 +
 +  maxcpus=4
 +
 +==== Blacklist ====
 +
 +  * ''btusb,hci_uart'' control Bluetooth
 +  * ''uvcvideo'' controls Webcams
 +  * ''iTCO_wdt'' controls Intel's Hardware Watchdog
 +  * ''nowatchdog'' disables both soft and hard generic watchdogs
 +
 +  modprobe.blacklist=btusb,hci_uart,uvcvideo,iTCO_wdt nowatchdog
 +
 +==== Disable AppArmor ====
 +
 +  * This can speed up boot a tiny bit but apparently will prevent Snaps from working
 +
 +  apparmor=0 security=""
 +
 +==== DRM Debug ====
 +
 +****
 +
 +  drm.debug=0xe
 +
 +==== Corsair Gaming HARPOON RGB Mouse Quirk ====
 +
 +****
 +
 +  usbhid.quirks=0x1B1C:0x1B3C:0x20000000
 +
 +==== Settings Update ====
 +
 +****
 +
 +  sudo clr-boot-manager update
 +
 +===== Swap Partition FDE Fix =====
 +
 +  * https://dev.solus-project.com/T1199
 +
 +  * Only required when Full Disk Encryption is being used ((TODO: Re-verify))
 +  * Change ''UUID'' to reported value from ''blkid''
 +
 +  sudo blkid | grep 'swap'
 +
 +  sudo -e '/etc/fstab'
 +
 +  UUID=x none swap defaults,discard 0 0
 +
 +===== I/O Schedulers =====
 +
 +==== Check ====
 +
 +  * Replace ''sda'' if necessary
 +  * If using ''blk-mq'', non-mq schedulers aren't present ((no ''noop'', ''cfq'' nor ''deadline''))
 +
 +  cat '/sys/block/sda/queue/scheduler'
 +
 +==== BFQ ====
 +
 +  * Good for average workloads and responsiveness
 +  * May require [[distros:solus#blk_mq | blk_mq]]
 +
 +  echo 'ACTION=="add|change", KERNEL=="sd[a-z]", ATTR{queue/scheduler}="bfq"' | sudo tee '/etc/udev/rules.d/60-scheduler.rules' > '/dev/null' && sudo udevadm control --reload && sudo udevadm trigger
 +
 +==== Kyber ====
 +
 +  * Simple scheduler, good for fast drives and high throughput like Servers
 +  * May require [[distros:solus#blk_mq | blk_mq]]
 +
 +  echo 'ACTION=="add|change", KERNEL=="sd[a-z]", ATTR{queue/scheduler}="kyber"' | sudo tee '/etc/udev/rules.d/60-scheduler.rules' > '/dev/null' && sudo udevadm control --reload && sudo udevadm trigger
 +
 +==== mq-deadline ====
 +
 +  * Requires [[distros:solus#blk_mq | blk_mq]]
 +
 +  echo 'ACTION=="add|change", KERNEL=="sd[a-z]", ATTR{queue/scheduler}="mq-deadline"' | sudo tee '/etc/udev/rules.d/60-scheduler.rules' > '/dev/null' && sudo udevadm control --reload && sudo udevadm trigger
 +
 +==== none ====
 +
 +  * Probably shouldn't use this
 +
 +  echo 'ACTION=="add|change", KERNEL=="sd[a-z]", ATTR{queue/scheduler}="none"' | sudo tee '/etc/udev/rules.d/60-scheduler.rules' > '/dev/null' && sudo udevadm control --reload && sudo udevadm trigger
 +
 +===== Input =====
 +
 +  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'
 +
 +===== Kernel Options =====
 +
 +  sudo -e '/etc/sysctl.d/99-custom.conf'
 +
 +  kernel.dmesg_restrict = 1
 +  kernel.kptr_restrict = 1
 +  kernel.sysrq = 1
 +
 +===== mpv =====
 +
 +  * With GNOME mpv, this config file needs to be manually selected from Preferences
 +  * ''hwdec'' can be either ''vdpau'' or ''vaapi'' depending on the GPU/driver used ((''radeon'', ''amdgpu'', ''nouveau'', and ''NVIDIA'' = ''vdpau'' || ''intel'' = ''vaapi''))
 +
 +  mkdir -p ~/'.config/mpv' && nano ~/'.config/mpv/mpv.conf'
 +
 +  hwdec='vaapi'
 +  profile='opengl-hq'
 +  ao='pulse'
 +
 +  ~/.config/mpv/mpv.conf
 +
 +===== NetworkManager =====
 +
 +  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]
 +  ethernet.cloned-mac-address=random
 +  wifi.cloned-mac-address=random
 +  
 +  [connection]
 +  wifi.powersave=2
 +
 +===== PulseAudio =====
 +
 +  nano ~/'.config/pulse/daemon.conf'
 +
 +  resample-method = soxr-vhq
 +  flat-volumes = no
 +
 +===== Secure Shell =====
 +
 +  * See [[Clients:Secure Shell]]
 +
 +===== systemd Journal =====
 +
 +  sudo mkdir -p '/etc/systemd/journald.conf.d' && sudo -e '/etc/systemd/journald.conf.d/logging.conf'
 +
 +  [Journal]
 +  SystemMaxUse=50M
 +  RuntimeMaxUse=50M
 +
 +===== TRIM =====
 +
 +==== Service ====
 +
 +  * The weekly timer should already be enabled
 +
 +  sudo systemctl start 'fstrim' && sync && sudo systemctl status 'fstrim' 'fstrim.timer' -l
 +
 +===== Environment Variables =====
 +
 +==== Wine Staging ====
 +
 +  sudo mkdir -p '/etc/profile.d' && sudo -e '/etc/profile.d/wine-staging.sh'
 +
 +  # Tweaks
 +  export STAGING_SHARED_MEMORY=1
 +  export STAGING_WRITECOPY=1
 +
 +==== Timezone ====
 +
 +  * https://blog.packagecloud.io/eng/2017/02/21/set-environment-variable-save-thousands-of-system-calls
 +
 +  sudo mkdir -p '/etc/profile.d' && echo 'export TZ=:/etc/localtime' | sudo tee '/etc/profile.d/tz.sh' > '/dev/null'
 +
 +====== Computer-specific ======
 +
 +===== Spinesnap =====
 +
 +==== Internal Speakers ====
 +
 +  * https://bugzilla.kernel.org/show_bug.cgi?id=195049
 +
 +  sudo eopkg install 'alsa-tools' -y && sudo -e '/etc/systemd/system/acer-speakers.service' && sudo systemctl daemon-reload && sudo systemctl enable 'acer-speakers' && sudo systemctl start 'acer-speakers' && sudo systemctl status 'acer-speakers' -l
 +
 +  [Unit]
 +  Description=Acer Predator G9-791 Internal Speaker Fix
 +  After=sound.target
 +  Wants=sound.target
 +  
 +  [Service]
 +  Type=oneshot
 +  ExecStart=/usr/bin/hda-verb '/dev/snd/hwC0D0' '0x1b' '0x300' '0x9000'
 +  ExecStart=/usr/bin/hda-verb '/dev/snd/hwC0D0' '0x1b' '0x300' '0xa000'
 +  ExecStart=/usr/bin/hda-verb '/dev/snd/hwC0D0' '0x1b' '0x707' '0x60'
 +  
 +  [Install]
 +  WantedBy=sound.target
 +
 +=== Sleep Script ===
 +
 +  sudo -e '/usr/lib/systemd/system-sleep/acer-speakers.sleep' && sudo chmod +x '/usr/lib/systemd/system-sleep/acer-speakers.sleep'
 +
 +  #!/bin/sh
 +  '/usr/bin/hda-verb' '/dev/snd/hwC0D0' '0x1b' '0x300' '0x9000'
 +  '/usr/bin/hda-verb' '/dev/snd/hwC0D0' '0x1b' '0x300' '0xa000'
 +  '/usr/bin/hda-verb' '/dev/snd/hwC0D0' '0x1b' '0x707' '0x60'
 +
 +==== Open-Source Graphics ====
 +
 +=== modesetting ===
 +
 +  sudo -e '/etc/X11/xorg.conf.d/99-graphics.conf'
 +
 +<code>
 +Section "Device"
 +    Identifier      "Optimus"
 +    Driver          "modesetting"
 +EndSection</code>
 +
 +=== intel + nouveau ===
 +
 +  sudo -e '/etc/X11/xorg.conf.d/99-graphics.conf'
 +
 +<code>
 +Section "Device"
 +    Identifier      "Skylake GT2"
 +    Driver          "intel"
 +    BusID           "PCI:0:2:0"
 +    Option          "DRI"       "3"
 +EndSection
 +
 +Section "Device"
 +    Identifier      "NV124"
 +    Driver          "nouveau"
 +    BusID           "PCI:1:0:0"
 +    Option          "DRI"       "3"
 +EndSection</code>
 +
 +==== Proprietary Graphics ====
 +
 +  * TODO: Figure this out again
 +
 +==== MSR ====
 +
 +  * Not necessary to be ran, only here for reference
 +  * Requires ''msr-tools'' ((https://dev.solus-project.com/T3339))
 +
 +=== Enable Intel Speed Shift Technology ===
 +
 +  * ''0x770'' needs to report ''1''
 +
 +  sudo rdmsr --all --decimal '0x770'
 +
 +  sudo wrmsr --all '0x770' '1'
 +
 +=== Disable BD-PROCHOT ===
 +
 +  * ''0x1FC'' needs to be set to whatever it reports
 +
 +  sudo rdmsr --all --decimal '0x1FC'
 +
 +  sudo wrmsr --all '0x1FC' 'x'
 +
 +====== Steven Black's Unified Hosts File ======
 +
 +===== Service =====
 +
 +  sudo -e '/etc/systemd/system/hosts-up.service'
 +
 +  [Service]
 +  Type=oneshot
 +  WorkingDirectory=/tmp
 +  ExecStartPre=/bin/rm -Rf '/tmp/master.zip' '/tmp/hosts-master'
 +  ExecStartPre=/usr/bin/wget 'https://github.com/StevenBlack/hosts/archive/master.zip' -O '/tmp/master.zip'
 +  ExecStartPre=/usr/bin/unzip '/tmp/master.zip' -d '/tmp'
 +  ExecStart=/usr/bin/python3 '/tmp/hosts-master/updateHostsFile.py' --auto --replace --flush-dns-cache --extensions 'gambling' 'fakenews'
 +  ExecStartPost=/bin/rm -Rf '/tmp/master.zip' '/tmp/hosts-master'
 +  ExecStartPost=/bin/sync
 +
 +===== Timer =====
 +
 +  sudo -e '/etc/systemd/system/hosts-up.timer' && sudo systemctl daemon-reload && sudo systemctl enable 'hosts-up.timer' && sudo systemctl start 'hosts-up.timer' 'hosts-up' && sudo systemctl status 'hosts-up' -l
 +
 +  [Unit]
 +  Description=Steven Black's Unified Hosts File Sources Updater
 +  After=network-online.target
 +  Wants=network-online.target
 +  
 +  [Timer]
 +  OnCalendar=weekly
 +  Persistent=true
 +  
 +  [Install]
 +  WantedBy=timers.target
 +
 +====== Mozilla Firefox ======
 +
 +  * Use Disconnect.me strict protection Block List
 +
 +===== user.js =====
 +
 +  cd ~/'.mozilla/firefox/'*'.default' && nano 'user.js' && cd ~
 +
 +<code>
 +user_pref("layout.frame_rate.precise", true);
 +user_pref("mousewheel.min_line_scroll_amount", 40);
 +user_pref("browser.sessionstore.interval", 300000);
 +user_pref("extensions.jid1-BoFifL9Vbdl2zQ@jetpack.showReleaseNotes", false);
 +user_pref("dom.storage.enabled", true);
 +user_pref("dom.event.clipboardevents.enabled", true);
 +user_pref("extensions.pocket.enabled", false);
 +user_pref("loop.enabled", false);
 +user_pref("reader.parse-on-load.enabled", false);
 +user_pref("media.peerconnection.enabled", false);
 +user_pref("security.ssl.require_safe_negotiation", false);
 +user_pref("network.captive-portal-service.enabled", false);
 +user_pref("network.cookie.cookieBehavior", 1);
 +user_pref("browser.sessionstore.privacy_level", 2);
 +user_pref("browser.cache.disk.enable", false);
 +user_pref("privacy.popups.disable_from_plugins", 3);
 +user_pref("dom.battery.enabled", false);
 +user_pref("media.peerconnection.ice.default_address_only", true);
 +user_pref("security.ssl3.dhe_rsa_aes_128_sha", false);
 +user_pref("security.ssl3.dhe_rsa_aes_256_sha", false);
 +user_pref("toolkit.telemetry.enabled", false);
 +user_pref("privacy.donottrackheader.enabled", true);
 +user_pref("geo.enabled", false);
 +user_pref("browser.safebrowsing.malware.enabled", false);
 +user_pref("browser.safebrowsing.phishing.enabled", false);
 +user_pref("browser.safebrowsing.downloads.enabled", false);
 +user_pref("webgl.disabled", true);
 +user_pref("media.mediasource.ignore_codecs", true);
 +user_pref("network.cookie.lifetimePolicy", 2);
 +user_pref("browser.display.use_document_fonts", 0);
 +user_pref("network.http.referer.userControlPolicy", 0);
 +user_pref("dom.webaudio.enabled", false);
 +user_pref("dom.webnotifications.enabled", false);</code>
 +
 +  user_pref("browser.tabs.remote.autostart.2", false);
 +
 +===== Extensions =====
 +
 +  * 8 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://addons.mozilla.org/en-US/firefox/addon/umatrix/versions' && gio open 'https://addons.mozilla.org/en-US/firefox/addon/cookie-autodelete/versions' && gio open 'https://addons.mozilla.org/en-US/firefox/addon/https-by-default/versions' && gio open 'https://addons.mozilla.org/en-US/firefox/addon/no-resource-uri-leak/versions' && gio open 'https://addons.mozilla.org/en-US/firefox/addon/ublock-origin/versions'
 +
 +==== Cookie AutoDelete ====
 +
 +  * Enable Active Mode
 +  * Don't Log Total Number Of Cookies Deleted
 +  * Don't Show Notification After Cookie CleanUp
 +  * Clean Cookies from Open Tabs on StartUp
 +
 +==== HTTPS Everywhere ====
 +
 +  * Use the Observatory
 +
 +==== No Resource URI Leak ====
 +
 +  * Block Web-exposed subset of chrome URIs
 +
 +==== Privacy Settings ====
 +
 +  * Full Privacy
 +
 +==== uBlock Origin ====
 +
 +=== Disabled Filters ===
 +
 +  * EasyList
 +  * EasyPrivacy
 +  * Malware Domain List
 +  * Malware domains
 +  * Peter Lowe’s Ad and tracking server list​​​​​​​​
 +
 +=== Custom Filters ===
 +
 +  https://secure.fanboy.co.nz/fanboy-problematic-sites.txt
 +  https://secure.fanboy.co.nz/enhancedstats.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/fake-news.txt
 +  https://easylist-downloads.adblockplus.org/antiadblockfilters.txt
 +  https://xuhaiyang1234.gitlab.io/AAK-Cont/dist/aak-cont-list-ubo.txt
 +  https://raw.githubusercontent.com/jspenguin2017/uBlockProtector/master/uBlockProtectorList.txt
 +
 +==== uMatrix ====
 +
 +  * Auto-update hosts files
 +
 +====== Notable Folders and Commands ======
 +
 +===== Shortcuts =====
 +
 +  /usr/share/applications
 +
 +  ~/.local/share/applications
 +
 +===== Icons =====
 +
 +  /usr/share/icons/hicolor
 +
 +  ~/.local/share/icons/hicolor
 +
 +===== fstrim =====
 +
 +****
 +
 +  sudo fstrim -v --all
 +
 +===== Xorg Debug =====
 +
 +****
 +
 +  gio open '/var/log/Xorg.0.log'
 +
 +===== Verify DRI3 =====
 +
 +****
 +
 +  LIBGL_DEBUG='verbose' glxinfo | grep 'libgl'
 +
 +===== Show Graphics Info =====
 +
 +****
 +
 +  inxi -xG
 +
 +===== Show CPU Frequency =====
 +
 +  grep 'MHz' '/proc/cpuinfo'
 +
 +  watch -n 0.1 grep \'cpu MHz\' '/proc/cpuinfo'
 +
 +===== Partition Information =====
 +
 +****
 +
 +  df -hT
 +
 +===== Encryption Information =====
 +
 +****
 +
 +  sudo cryptsetup -v status '/dev/dm-0'
 +
 +===== hdparm Secure Erase =====
 +
 +  * The suspend is needed to release frozen drive state ((Spinesnap))
 +
 +  sudo eopkg install 'hdparm' -y && sync
 +
 +  systemctl suspend
 +
 +  lsblk
 +
 +  sudo hdparm -I '/dev/sda' | grep 'not'
 +
 +  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-erase-enhanced 'x' '/dev/sda'
 +
 +==== Quick Commands ====
 +
 +  * Performs ''security-erase'' followed by ''security-erase-enhanced''
 +
 +=== sda ===
 +
 +****
 +
 +  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
 +
 +=== sdb ===
 +
 +****
 +
 +  sudo hdparm --user-master u --security-set-pass 'x' '/dev/sdb' && sudo hdparm --user-master u --security-erase 'x' '/dev/sdb' && sudo hdparm --user-master u --security-set-pass 'x' '/dev/sdb' && sudo hdparm --user-master u --security-erase-enhanced 'x' '/dev/sdb' && sync
 +
 +===== Clean EFI Variables =====
 +
 +  * This is only verified on Spinesnap, other computers beware as this can cause a brick apparently
 +  * This is an easier way of clearing boot entries outside of ''efibootmgr'' and manually deleting each entry
 +
 +  sudo rm -f '/sys/firmware/efi/efivars/'* || sync
 +
 +==== EFI Variables R/W ====
 +
 +  * This wasn't necessary on Solus 3, but should ''efivars'' need to be ''rw'', the following command does that
 +
 +  sudo mount -o 'remount' '/sys/firmware/efi/efivars' -o 'rw,nosuid,nodev,noexec,noatime'
 +
 +===== RAID Controller Details =====
 +
 +  * Only applicable when using FakeRAID/Intel RST
 +
 +  sudo mdadm --detail-platform
 +
 +===== VGA Switcheroo Power States =====
 +
 +  * https://nouveau.freedesktop.org/wiki/Optimus
 +  * DIS: Discrete GPU
 +  * IGD: Integrated Graphics
 +  * DIS-Audio: The audio device exported by your discrete GPU for HDMI sound playback
 +  * +: This device is connected to graphics connectors
 +  * OFF: The device is powered off
 +  * ON: The device is powered on
 +  * DynOff: The device is currently powered off but will be powered on when needed
 +  * DynPwr: The device is currently powered on but will be powered off when not needed
 +
 +  sudo cat '/sys/kernel/debug/vgaswitcheroo/switch'
 +
 +===== i915 GuC Firmware =====
 +
 +  sudo cat '/sys/kernel/debug/dri/0/i915_guc_info'
 +
 +  sudo cat '/sys/kernel/debug/dri/0/i915_guc_load_status'
 +
 +===== 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 ======
 +
 +===== Remove EXIF data =====
 +
 +****
 +
 +  exiftool -all= *.* -overwrite_original