====== Notes ======

  * :!: Anything here expects Xorg and not Wayland
  * ''Identifier'' will need changed for different display connections and drivers

====== Config File ======

  * ''99-graphics.conf''

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

====== Specific Screens ======

===== Acer S271HL =====

  * [[devices;displays;acer_s271hl|Acer S271HL]]

  * Last updated: 2024/08/25
  * :!: The ''Identifier'' expects ''modesetting'' ((''intel'' is ''HDMI1'' no-dash))

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

<code>
Section "Monitor"
    Identifier "HDMI-1"
    Modeline "1920x1080_75.00"  167.85  1920 1928 1960 2000  1080 1105 1113 1119 +hsync -vsync
    Modeline "1280x720_75.00"   95.75  1280 1360 1488 1696  720 723 728 755 -hsync +vsync
    Modeline "1024x768_75.00"   82.00  1024 1088 1192 1360  768 771 775 805 -hsync +vsync
    Option "PreferredMode" "1920x1080_75.00"
EndSection</code>

==== NVIDIA ====

  * https://blogshit.baka.fi/2020/07/xorg-custom-resolutions/
  * https://download.nvidia.com/XFree86/Linux-x86_64/510.54/README/xconfigoptions.html

<code>
Section "Monitor"
    Identifier "S271HL-75Hz"
    Modeline "1920x1080_75"  167.85  1920 1928 1960 2000  1080 1105 1113 1119 +hsync -vsync
EndSection

Section "Screen"
    Identifier "Screen0"
    Option "ModeValidation" "HDMI-0: NoMaxPClkCheck,NoEdidMaxPClkCheck,NoHorizSyncCheck,NoVertRefreshCheck,AllowNonEdidModes"
    Monitor "S271HL-75Hz"
EndSection</code>

====== Monitor/Display ======

===== Deep Color =====

  * https://wiki.gentoo.org/wiki/30bpp
  * https://wiki.archlinux.org/title/AMDGPU#10-bit_color
  * The lack-of quotes around ''30'' is intentional and required syntax
  * :!: This may cause apps to crash

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

<code>
Section "Screen"
    Identifier "Deep Color Screen"
    DefaultDepth 30
EndSection</code>

==== Verify ====

  * [[linux;notes;misc#xorg_debug|Xorg Debug]]

  Pixel depth

====== GPU ======

===== amdgpu =====

  * https://wiki.archlinux.org/title/AMDGPU#Reduce_output_latency

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

<code>
Section "OutputClass"
    Identifier "AMD Graphics"
    MatchDriver "amdgpu"
    Driver "amdgpu"
    Option "EnablePageFlip" "0"
    Option "TearFree" "0"
EndSection</code>

===== intel =====

  * 2024/08/26: Last tested on [[linux;distros;fedora_workstation_gnome|Fedora 40]] with Intel UHD 630

  sudo dnf install 'xorg-x11-drv-intel' -y && sudo -e '/etc/X11/xorg.conf.d/99-graphics.conf'

<code>
Section "OutputClass"
    Identifier "Intel Graphics"
    MatchDriver "i915"
    Driver "intel"
    Option "DRI" "iris"
EndSection</code>

===== NVIDIA =====

  * ''Coolbits'' at ''28'' unlocks all available overclocking settings

  sudo -e '/etc/X11/xorg.conf.d/nvidia.conf'

<code>
Section "OutputClass"
    Identifier "nvidia"
    MatchDriver "nvidia-drm"
    Option "Coolbits" "28"
    Option "AllowUnofficialGLXProtocol" "1"
EndSection</code>

====== Input ======

===== libinput =====

  * Last tested: 2024/06/11 on openSUSE Tumbleweed

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

<code>
Section "InputClass"
    Identifier "Pointer (libinput custom)"
    MatchIsPointer "on"
    MatchDevicePath "/dev/input/event*"
    Driver "libinput"
    Option "AccelProfile" "flat"
EndSection

Section "InputClass"
    Identifier "Keyboard (libinput custom)"
    MatchIsKeyboard "on"
    MatchDevicePath "/dev/input/event*"
    Driver "libinput"
    Option "AccelProfile" "flat"
EndSection

Section "InputClass"
    Identifier "Touchpad (libinput custom)"
    MatchIsTouchpad "on"
    MatchDevicePath "/dev/input/event*"
    Driver "libinput"
    Option "AccelProfile" "flat"
    Option "ClickMethod" "buttonareas"
    Option "DisableWhileTyping" "off"
    Option "NaturalScrolling" "off"
    Option "SendEventsMode" "disabled-on-external-mouse"
    Option "Tapping" "off"
EndSection</code>

===== evdev =====

  * Last tested: 2024/06/11 on openSUSE Tumbleweed

  * :!: Touchpad needed ''synaptics'' instead of just ''evdev''

  sudo zypper install -y 'xf86-input-evdev' && sudo -e '/etc/X11/xorg.conf.d/99-evdev.conf'

  sudo zypper install -y 'xf86-input-synaptics'

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

<code>
Section "InputClass"
    Identifier "Pointer (evdev custom)"
    MatchIsPointer "on"
    MatchDevicePath "/dev/input/event*"
    Driver "evdev"
    Option "AccelerationProfile" "-1"
    Option "AccelerationScheme" "none"
EndSection

Section "InputClass"
    Identifier "Keyboard (evdev custom)"
    MatchIsKeyboard "on"
    MatchDevicePath "/dev/input/event*"
    Driver "evdev"
    Option "AccelerationProfile" "-1"
    Option "AccelerationScheme" "none"
EndSection

Section "InputClass"
    Identifier "Touchpad (synaptics custom)"
    MatchIsTouchpad "on"
    MatchDevicePath "/dev/input/event*"
    Driver "synaptics"
    Option "TapAndDragGesture" "0"
    Option "CoastingSpeed" "0"
    Option "PalmDetect" "0"
    Option "CircularScrolling" "0"
    Option "TapButton3" "0"
    Option "TapButton2" "0"
    Option "TapButton1" "0"
    Option "LBCornerButton" "0"
    Option "LTCornerButton" "0"
    Option "RBCornerButton" "0"
    Option "RTCornerButton" "0"
    Option "LockedDrags" "0"
    Option "HorizTwoFingerScroll" "0"
    Option "CornerCoasting" "0"
    Option "HorizEdgeScroll" "0"
    Option "VertEdgeScroll" "0"
EndSection

Section "InputClass"
    Identifier "Tablet (evdev custom)"
    MatchIsTablet "on"
    MatchDevicePath "/dev/input/event*"
    Driver "evdev"
    Option "AccelerationProfile" "-1"
    Option "AccelerationScheme" "none"
EndSection

Section "InputClass"
    Identifier "Touchscreen (evdev custom)"
    MatchIsTouchscreen "on"
    MatchDevicePath "/dev/input/event*"
    Driver "evdev"
    Option "AccelerationProfile" "-1"
    Option "AccelerationScheme" "none"
EndSection</code>