Linux / OpenSUSE Configuration

KDE

Display resolution

• For 3840x2400 X1 Carbon
  • Display and Monitor Global Scale: 168.75%

Integer Scaling, forget about fractional scaling

• Strong case for integer (200%) scaling. Aligns to pixels accurately, and scales icons better on KDE

Fonts

• DPI: 162 (Automatically set after changing Global scale)

• Fonts:

  • General: Noto Sans 11pt
  • Fixed: JetBrainsMono 10pt
  • Small: Noto Sans 9pt
  • Toolbar: Noto Sans 10pt
  • Menu: Noto Sans 11pt
  • Window title: Noto Sans 11pt

  Possible use of OTF for better rendering

  https://www.reddit.com/r/kde/comments/kzf6gx/best_fonts_and_rendering_settingsoptions/gkjpb86/

  Cantarell OTF

  tonsky/FiraCode#1233 (comment)

  Config for fixing TTF? In /etc/environment

  FREETYPE_PROPERTIES="cff:no-stem-darkening=0 autofitter:no-stem-darkening=0"

  https://www.reddit.com/r/elementaryos/comments/tpvxed/do_you_feel_like_the_default_font_inter_is_too/

  Hingting and fontconfig

  https://venam.net/blog/unix/2020/09/14/playing_with_fonts.html

  https://wiki.archlinux.org/title/font_configuration#Applications_overriding_hinting ~/.config/kdeglobals overrides settings for Firefox etc

  XftAntialias=true
  XftHintStyle=hintfull
  XftSubPixel=none
  

  • Flatpak special config dir:
    • ~/.var/app/org.mozilla.firefox/config/fontconfig/fonts.conf
    • override a font:

    <?xml version="1.0"?>
    <!DOCTYPE fontconfig SYSTEM "fonts.dtd">
    <fontconfig>    
      <match>
        <test name="family"><string>Liberation Mono</string></test>
          <edit name="family" mode="assign" binding="strong">
            <string>JetBrains Mono</string>
          </edit>
      </match>
    </fontconfig>

Settings

• System Bell off: Accessibility -> Audible Bell -> uncheck Enable
• Splash Screen: None
• SDDM Login Screen: change picture, Apply Plasma Settings
• Screen Locking: Screen Locking -> Appearance -> Configure
• Workspace Behavior -> General Behavior -> Animation Speed, inc 1
  • Click files selects them
• Input Devices
  • Keyboard: Delay 356ms

Zypper / Yast

• Remove and lock packages (sudo zypper al) or mark taboo in Yast:

  • akonadi-contact

  • discover

  • games (pattern)

  • kde_games (pattern)

  • kde_office (pattern)

  • office (pattern)

  • libdvdcss2

  • plasma5-pk-updates

  • xorg-x11-fonts

  • xorg-x11-fonts-legacy

  • MozillaFirefox (if using flatpak. this was randomly re-installed)

  • Undoing/removing pacman vendor change and removing pacman packages

Telegram

flatpak QT environment variable to fix rendering resolution:

flatpak override --env=QT_SCALE_FACTOR_ROUNDING_POLICY=Round org.telegram.desktop

Environment

• use KDE file chooser export GTK_USE_PORTAL=1
• KDE Developer setup: Disable indexing for your development environment

You'll want to disable indexing for your development-related git repos and the files they will build and install. Add the directory ~/kde to the exclusions list in System Settings > Workspace > Search > File Search

Progamming

Git

• git libsecret credential helper to save auth
  • git-credential-libsecret
  • libsecret-devel

  • git config --global credential.helper /usr/libexec/git/git-credential-libsecret
    

  • git config --global credential.helper /usr/libexec/git/git-credential-libsecret
    

Qt

Creator Settings

• clangd avoid header include instead of class/module include

  • C++ -> Clangd -> uncheck "insert header files on completion

• code style Webkit

  • Beautifier -> Clang Format -> Use predefined style Webkit

Browser

Brave

• hardware acceleration Flags --ignore-gpu-blocklist --enable-features=VaapiVideoDecoder,VaapiVideoEncoder,VaapiVideoDecodeLinuxGL,VaapiIgnoreDriverChecks --disable-features=UseChromeOSDirectVideoDecoder,UseSkiaRenderer

  Pass flags to flatpak: flatpak/flatpak#2913 (comment)

  Like this below, but desktop files are in /var: /var/lib/flatpak/exports/share/applications/com.brave.Browser.desktop

  So in summary what I ended up doing was following @JKAnderson409 's advice and did this:

  cp ~/.local/share/flatpak/exports/share/applications/org.signal.Signal.desktop \
     ~/.local/share/applications/
  
  # Edit copy to my liking without modifying the original.
  vim ~/.local/share/applications/org.signal.Signal.desktop 

  My custom ~/.local/share/applications/org.signal.Signal.desktop now looks like this:

  [Desktop Entry]
  Name=Signal
  Exec=/usr/bin/flatpak run --branch=stable --arch=x86_64 --command=signal --file-forwarding org.signal.Signal --enable-features=UseOzonePlatform --ozone-platform=wayland  @@u %U @@
  
  # ...more stuff below this line, which I did not modify

Firefox

• Install Tab Center Reborn extension

• How to move sidebar to the right

• Move sidebar to Right

  • Make sure #sidebar-header visibility is not collapsed in userChrome.css
  • click on Bookmarks drop down inside sidebar header

• User Chrome instructions

  • Windows app store Firefox location: C:\Users\ms\AppData\Local\Packages\Mozilla.Firefox_abcdefghij\LocalCache\Roaming\Mozilla\Firefox\Profiles\1pxxyyzz.default-release\chrome\userContent.css

  firefox smooth scrolling

  • Add to .profile export MOZ_USE_XINPUT2=1

  about:config

  GPU (not sure what's necessary now)

  • layers.gpu-process.enabled true Lowers dropped frames on Youtube
  • gfx.webrender.enabled true
  • gfx.webrender.all true
  • gfx.webrender.compositor true
  • gfx.webrender.compositor.force-enabled
  • gfx.swap-interval.egl (see KWIN/Plasma/KDE egl settings)
  • gfx.x11-egl.force-enabled
  • Fix stuttering twitter and other videos: flatpak install org.freedesktop.Platform.ffmpeg-full and media.hardware-video-decoding.force-enabled=true (if necessary)

  Performance

  • https://www.reddit.com/r/firefox/comments/107fj69/comment/j3ou262/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button
  • accessibility.force_disabled 1
  • reader.parse-on-load.enabled false
  • network.dnsCacheEntries 4096
  • security.remote_settings.crlite_filters.enabled true
  • security.pki.crlite_mode 2
  • browser.cache.disk.metadata_memory_limit 6000
  • browser.cache.frecency_half_life_hours 8
  • browser.sessionstore.interval 900000
  • browser.sessionstore.interval.idle 1800000
  • https://www.reddit.com/r/browsers/comments/1bb81y8/firefox_the_only_browser_doing_certificate/
  • security.pki.crlite_mode = 2
  • security.remote_settings.crlite_filters.enabled = true

Windows

• about:support > Media > codec support information > AV1 install extension > Microsoft Store

Flatpak

• Add: google-noto-sans-cjk-fonts

• Remove: sudo zypper remove xorg-x11-fonts xorg-x11-fonts-legacy and add lock to prevent re-install: sudo zypper al xorg-x11-fonts xorg-x11-fonts-legacy

• Configuration that might be needed for apps, in .profile: export XDG_DATA_DIRS="/var/lib/flatpak/exports/share:/home/cdock/.local/share/flatpak/exports/share:$XDG_DATA_DIRS"

• profile location: Everything that is normally stored in $HOME is in ~/.var/app/org.mozilla.firefox/. You want the "Root Directory": ~/.var/app/org.mozilla.firefox/.mozilla/firefox/[profile name]

• MPV Config: .var/app/io.mpv.Mpv/config/mpv/mpv.conf

  profile=gpu-hq
  vo=gpu
  hwdec=auto
  

Color Profile

• Browsers https://gregbenzphotography.com/photography-tips/how-to-setup-proper-color-management-in-a-web-browser/
• https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/3.5/ICC_color_correction_in_Firefox
• gfx.color_management.rendering_intent = 1
• gfx.color_management.mode = 1

NextDNS

https://github.com/yokoffing/NextDNS-Config#blocklists-1

Windows

TCP Autotuning Level

Get-NetTCPSetting Set-NetTCPSetting

netsh int tcp show global

netsh int tcp set global autotuninglevel=experimental

netsh int tcp set global autotuninglevel=normal

• may be fix for slow wifi https://learn.microsoft.com/en-us/archive/blogs/netgeeks/a-word-about-autotuninglevel-tcp-receive-auto-tuning-level-explained
• https://www.reddit.com/r/YouShouldKnow/comments/d6vzet/ysk_that_windows_10_can_seriously_limit_your/
• https://www.reddit.com/r/HomeNetworking/comments/ma5fvd/wifi_slow_on_5ghz_intel_wifi_6_ax200_160mhz/
• https://www.reddit.com/r/LenovoLegion/comments/1d85w0k/ax211_wifi_slow_issue_solved_two_things_i_didnt/