From 06b990eac72615c01d422af006b6f1015882d9e8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jakub=20Wiewi=C3=B3ra?= <felxwrzooz@gmail.com>
Date: Thu, 1 Feb 2024 20:53:47 +0100
Subject: [PATCH] Added Wayland files

---
 README.md                  | 26 ++++++++++++++++++++++++++
 Wayland/displays-edid      | 10 ++++++++++
 Wayland/displays.modelines |  3 +++
 3 files changed, 39 insertions(+)
 create mode 100755 Wayland/displays-edid
 create mode 100644 Wayland/displays.modelines

diff --git a/README.md b/README.md
index d9e1cf9..258713c 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,33 @@ In this case, there are 2 options. First is to pass `video` kernel parameter(but
 ### Modifying EDID
 https://askubuntu.com/questions/973499/wayland-how-to-set-a-custom-resolution
 
+```bash
+# Install nessesary packages
+sudo apt install zsh edid-decode automake dos2unix
 
+# Clone tools 
+git clone https://gitea.wrzooz.pl/repaste/edid-generator.git
+cd edid-generator
+
+# Prepare new edid files
+./modeline2edid ../RX7900XTPowerDrawFix/Wayland/displays.modelines
+make
+
+# Place EDID files in target location
+sudo mkdir /usr/lib/firmware/edid
+sudo cp 1200p_61.bin /usr/lib/firmware/edid/
+sudo cp 1440p_61.bin /usr/lib/firmware/edid/
+
+# Add those files to initramfs so driver can load them
+cp ./Wayland/displays-edid /usr/share/initramfs-tools/hooks/displays-edid
+sudo chmod +x /usr/share/initramfs-tools/hooks/displays-edid
+sudo update-initramfs -u
+
+# Make kernel use that files
+sudo nano /etc/default/grub
+#add drm.edid_firmware=DP-1:edid/1200p_61.bin,DP-3:edid/1200p_61.bin into GRUB_CMDLINE_LINUX_DEFAULT
+sudo update-grub
+```
 
 ### Testing
 
diff --git a/Wayland/displays-edid b/Wayland/displays-edid
new file mode 100755
index 0000000..438ce14
--- /dev/null
+++ b/Wayland/displays-edid
@@ -0,0 +1,10 @@
+#!/bin/sh -e
+# Copy patched EDID blob
+
+if [ "$1" = "prereqs" ]; then exit 0; fi
+
+. /usr/share/initramfs-tools/hook-functions
+
+copy_file edid /usr/lib/firmware/edid/1200p_61.bin
+copy_file edid /usr/lib/firmware/edid/1440p_61.bin
+
diff --git a/Wayland/displays.modelines b/Wayland/displays.modelines
new file mode 100644
index 0000000..c4194c8
--- /dev/null
+++ b/Wayland/displays.modelines
@@ -0,0 +1,3 @@
+Modeline "1200p_61" 196.53  1920 2048 2256 2592  1200 1201 1204 1243  -HSync +Vsync ratio=16:10
+Modeline "1440p_61" 317.24  2560 2744 3024 3488  1440 1441 1444 1491  -HSync +Vsync ratio=16:9
+Modeline "1200p_61" 196.53  1920 2048 2256 2592  1200 1201 1204 1243  -HSync +Vsync ratio=16:10