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--- notes:xorg.conf_snippets [2019/11/30 22:18] – created Sean Rhone
+++ notes:xorg.conf_snippets [2023/05/28 23:33] (current) – Sean Rhone
@@ Line 1: / Line 1: @@
-====== Monitor/Display ======
+====== Notes ======
-===== 4K@60Hz RB =====
+  * :!: Anything here expects Xorg and not Wayland
+  * ''Identifier'' will need changed for different display connections and drivers
-  * 4k@60Hz CVT-RB
+====== Config File ======
-  * Fixes unstable HDMI at 4K@60Hz, and overly-bright colors on DisplayPort
-  * :!: The ''grep'' here confirms the expected Modeline ((if grep reports nothing, use whatever is reported instead))
-  * :!: This cannot be used on Wayland currently
-  * :!: This expects ''amdgpu'' DDX driver to be used ((''modesetting'' has a 4K RB resolution without any settings require on Xorg))
-  cvt --verbose --reduced '3840' '2160' '60' | grep 'Modeline "3840x2160R"  533.00  3840 3888 3920 4000  2160 2163 2168 2222 +hsync -vsync'
+  * ''99-graphics.conf''
-  sudo -e '/etc/X11/xorg.conf.d/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 =====
+  * See [[devices:acer_s271hl|Acer S271HL]]
+  * Last updated: 2022/05/18
+  * :!: The ''Identifier'' expects ''modesetting''
+  * :!: It's better to [[notes:kernel_parameters#custom_resolution|use a kernel option]] as it applies to both Wayland and Xorg
+  sudo mkdir -p '/etc/X11/xorg.conf.d' && sudo -e '/etc/X11/xorg.conf.d/99-graphics.conf'
 <code>
 Section "Monitor"
-    Identifier      "HDMI-A-0"
+    Identifier "HDMI-1"
-    Modeline "3840x2160R"  533.00  3840 3888 3920 4000  2160 2163 2168 2222 +hsync -vsync
+    Modeline "1920x1080_75"  167.85  1920 1928 1960 2000  1080 1105 1113 1119 +hsync -vsync
-    Option          "PreferredMode" "3840x2160R"
+    Option "PreferredMode" "1920x1080_75"
 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 minor issues with programs not expecting 30-bit color ((GpuTest's fur ring doesn't render right, RS's NXT client's splash screen is gray))
+  * :!: This may cause apps to crash
-  * :!: This can cause games in Wine to not start under some circumstances ((FFXIV crashes on start-up due to a DirectX error))
-  * There is no known benefit to enabling this as of 2019/10/22
   sudo -e '/etc/X11/xorg.conf.d/99-graphics.conf'
@@ Line 31: / Line 59: @@
 <code>
 Section "Screen"
-    Identifier      "Deep Color Screen"
+    Identifier "Deep Color Screen"
-    DefaultDepth    30
+    DefaultDepth 30
 EndSection</code>
-====== DDX ======
+==== Verify ====
+  * This may need changed to ''1'' instead for some distros
+  cat ~/'.local/share/xorg/Xorg.0.log' | grep 'Pixel depth'
+  cat ~/'.local/share/xorg/Xorg.0.log.old' | grep 'Pixel depth'
+====== Specific Drivers ======
 ===== amdgpu =====
-  sudo dnf install 'xorg-x11-drv-amdgpu' -y && sudo -e '/etc/X11/xorg.conf.d/99-graphics.conf'
+==== Tweaked ====
+  * 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"
+    Identifier "AMD Graphics"
     MatchDriver "amdgpu"
-    Driver      "amdgpu"
+    Driver "amdgpu"
-    Option      "DRI"       "3"
+    Option "EnablePageFlip" "0"
-    Option      "TearFree"  "0"
+    Option "TearFree" "0"
 EndSection</code>
-===== intel =====
+==== Alternate ====
-  sudo dnf install 'xorg-x11-drv-intel' -y && sudo -e '/etc/X11/xorg.conf.d/99-graphics.conf'
+  * 2023/03/28: Last tested on Fedora 37 with a RX 6600 XT
+  sudo -e '/etc/X11/xorg.conf.d/99-graphics.conf'
 <code>
 Section "OutputClass"
-    Identifier  "Intel Graphics"
+    Identifier "AMD Graphics"
-    MatchDriver "i915"
+    MatchDriver "amdgpu"
-    Driver      "intel"
+    Driver "amdgpu"
-    Option      "DRI"       "3"
+    Option "TearFree" "1"
-    Option      "TearFree"  "0"
 EndSection</code>
-===== nouveau =====
+===== intel =====
-  sudo dnf install 'xorg-x11-drv-nouveau' -y && sudo -e '/etc/X11/xorg.conf.d/99-graphics.conf'
+  * 2023/05/28: Last tested on Ubuntu 23.04 with Intel UHD 630
+  sudo -e '/etc/X11/xorg.conf.d/99-graphics.conf'
 <code>
 Section "OutputClass"
-    Identifier  "NVIDIA Graphics"
+    Identifier "Intel Graphics"
-    MatchDriver "nouveau"
+    MatchDriver "i915"
-    Driver      "nouveau"
+    Driver "intel"
-    Option      "DRI"       "3"
+    Option "DRI" "3"
-EndSection</code>
+    Option "AccelMethod" "sna"
+    Option "TearFree" "1"
+    Option "TripleBuffer" "1"
+    Option "SwapbuffersWait" "1"
+EndSection
+</code>
-===== radeon =====
+===== NVIDIA =====
-  * Expects pre-SI GPUs ((HD6000 series and lower, and non-SI HD7000 series))
+  * ''Coolbits'' at ''28'' unlocks all available overclocking settings
-  * For SI, CIK, and newer GPUs, use ''amdgpu'', along with enabling ''si_support'' and ''cik_support'' respectively for the ''amdgpu'' kernel module ((see ''modinfo -p amdgpu''))
-  sudo dnf install 'xorg-x11-drv-ati' -y && sudo -e '/etc/X11/xorg.conf.d/99-graphics.conf'
+  sudo -e '/etc/X11/xorg.conf.d/nvidia.conf'
 <code>
 Section "OutputClass"
-    Identifier  "AMD Graphics"
+    Identifier "nvidia"
-    MatchDriver "radeon"
+    MatchDriver "nvidia-drm"
-    Driver      "radeon"
+    Option "Coolbits" "28"
-    Option      "DRI"               "3"
+    Option "AllowUnofficialGLXProtocol" "1"
-    Option      "SwapbuffersWait"   "0"
-    Option      "TearFree"          "0"
-    Option      "AccelMethod"       "EXA"
 EndSection</code>