fix: panel-cwu50 timing fix from Rex's kernel - native 720x1280 mode

Swap H/V display mode to native panel resolution (720x1280) instead of
rotated (1280x720). The DRM/KMS pipeline handles rotation via connector
orientation property. Setting wrong horizontal resolution caused DSI
controller to send extra pixels per line, resulting in horizontal
repetition.

Add DCS-based panel detection in init_sequence2 as supplemental check.

Based on ak-rex/ClockworkPi-linux rpi-6.12.y branch panel-cwu50.c.

Replaces old 0008 patches (DSI_INIT0, BURST removal) that didn't fix
the issue.

flake.nix

@@ -12,10 +12,21 @@
       url = "git+https://git.lix.systems/lix-project/lix?ref=main";
       inputs.nixpkgs.follows = "nixpkgs";
     };
-    self.submodules = true;
+    nixpkgs-uconsole.url = "github:NixOS/nixpkgs/nixos-25.11";
+    nixos-uconsole = {
+      url = "github:nixos-uconsole/nixos-uconsole/v1.1.0";
+      inputs.nixpkgs.follows = "nixpkgs-uconsole";
+      inputs.nixos-raspberrypi.follows = "nixos-raspberrypi";
+    };
+    nixos-raspberrypi = {
+      url = "github:gortium/nixos-raspberrypi/cm5-cross-v1";
+      inputs.nixpkgs.follows = "nixpkgs-uconsole";
+    };
   };
 
-  outputs = { self, nixpkgs, agenix, lix, ... }@inputs:
+  outputs = { self, nixpkgs, agenix, lix
+            , nixpkgs-uconsole, nixos-uconsole, nixos-raspberrypi
+            , ... }@inputs:
     let
       system = "x86_64-linux";
       keys = import ./lib/keys.nix;
@@ -30,57 +41,116 @@
       pkgs = import nixpkgs {
         inherit system overlays;
         config.allowUnfree = true;
-        config.permittedInsecurePackages = [
+        config.permittedInsecurePackages = [ "openclaw-2026.3.12" ];
-          "openclaw-2026.3.12"
-        ];
       };
-
       devShell = import ./shells/nix_dev.nix {
         inherit pkgs system agenix;
       };
-    in
+    in {
-      {
+      nixosConfigurations = {
-        nixosConfigurations = {
+        lazyworkhorse = nixpkgs.lib.nixosSystem {
-          lazyworkhorse = nixpkgs.lib.nixosSystem {
+          specialArgs = { inherit system self keys paths inputs; };
-            specialArgs = { inherit system self keys paths inputs; };
+          modules = [
-            modules = [
+            {
-              {
+              nixpkgs.overlays = overlays;
-                nixpkgs.overlays = overlays;
+              nixpkgs.config.allowUnfree = true;
-                nixpkgs.config.allowUnfree = true;
+              nixpkgs.config.rocmSupport = true;
-                nixpkgs.config.rocmSupport = true;
+              nixpkgs.config.permittedInsecurePackages = [ "openclaw-2026.3.12" ];
-                nixpkgs.config.permittedInsecurePackages = [
+              nix.package = lix.packages.${system}.default;
-                  "openclaw-2026.3.12"
+            }
-                ];
+            agenix.nixosModules.default
-                nix.package = lix.packages.${system}.default;
+            ./hosts/lazyworkhorse/configuration.nix
-              }
+            ./hosts/lazyworkhorse/hardware-configuration.nix
-              agenix.nixosModules.default
+            ./modules/nixos/filesystem/hoardingcow-mount.nix
-              ./hosts/lazyworkhorse/configuration.nix
+            ./modules/nixos/services/docker_manager.nix
-              ./hosts/lazyworkhorse/hardware-configuration.nix
+            ./modules/nixos/services/open_code_server.nix
-              ./modules/nixos/filesystem/hoardingcow-mount.nix
+            ./modules/nixos/services/ollama_init_custom_models.nix
-              ./modules/nixos/services/docker_manager.nix
+            ./modules/nixos/services/openclaw_node.nix
-              ./modules/nixos/services/open_code_server.nix
+            ./modules/nixos/security/ai-worker-restricted.nix
-              ./modules/nixos/services/ollama_init_custom_models.nix
+            ./users/gortium.nix
-              ./modules/nixos/services/openclaw_node.nix
+            ./users/ai-worker.nix
-              ./modules/nixos/security/ai-worker-restricted.nix
+          ];
-              ./users/gortium.nix
+        };
-              ./users/ai-worker.nix
+
-            ];
+        cyt-pi = nixpkgs.lib.nixosSystem {
-          };
+          specialArgs = { inherit self keys paths inputs; };
-
+          modules = [
-          cyt-pi = nixpkgs.lib.nixosSystem {
+            {
-            specialArgs = { inherit self keys paths inputs; };
+              nixpkgs.overlays = overlays;
-            modules = [
+              nixpkgs.config.allowUnfree = true;
-              {
+              nixpkgs.hostPlatform = "aarch64-linux";
-                nixpkgs.overlays = overlays;
+              nix.package = lix.packages."aarch64-linux".default;
-                nixpkgs.config.allowUnfree = true;
+            }
-                nixpkgs.hostPlatform = "aarch64-linux";
+            ./hosts/cyt-pi/configuration.nix
-                nix.package = lix.packages."aarch64-linux".default;
+            ./hosts/cyt-pi/hardware-configuration.nix
-              }
+          ];
-              ./hosts/cyt-pi/configuration.nix
+        };
-              ./hosts/cyt-pi/hardware-configuration.nix
+
-            ];
+        uconsole-cm5 = nixpkgs-uconsole.lib.nixosSystem {
-          };
+          system = "aarch64-linux";
+          specialArgs = {
+            inherit self keys paths inputs;
+            nixos-raspberrypi = nixos-raspberrypi;
+            isCM4 = false;
+          };
+          modules = [
+            {
+              nixpkgs.buildPlatform = "x86_64-linux";
+              nixpkgs.hostPlatform = "aarch64-linux";
+              nixpkgs.config.allowUnfree = true;
+              boot.loader.raspberry-pi.bootloader = "kernel";
+            }
+            nixos-raspberrypi.nixosModules.nixpkgs-rpi
+            # Fix display timings from Rex's kernel: native 720x1280 instead of
+            # rotated 1280x720, plus DCS-based panel detection.
+            ({ lib, ... }: {
+              boot.kernelPatches = [{
+                name = "panel-cwu50-rex-timing-fix";
+                patch = ./patches/0008-panel-cwu50-rex-timing-fix.patch;
+              }];
+            })
+            nixos-raspberrypi.nixosModules.raspberry-pi-5.base
+            nixos-raspberrypi.lib.inject-overlays
+            nixos-raspberrypi.lib.inject-overlays-global
+            nixos-uconsole.nixosModules.uconsole-cm5
+            ({ config, lib, pkgs, inputs, ... }: let
+              lix-cross = import inputs.nixpkgs-uconsole {
+                localSystem = { system = "x86_64-linux"; };
+                crossSystem = { system = "aarch64-linux"; };
+                overlays = [ inputs.lix.overlays.default ];
+              };
+            in { nix.package = lix-cross.lix; })
+            agenix.nixosModules.default
+            ./hosts/uconsole-cm5/configuration.nix
+            ./hosts/uconsole-cm5/hardware-configuration.nix
+          ];
         };
-        devShells.${system}.default = devShell;
       };
+
+      devShells.${system}.default = devShell;
+
+      packages.${system} = {
+        uconsole-cm5-image = (nixos-raspberrypi.lib.nixosSystem {
+          system = "aarch64-linux";
+          specialArgs = {
+            inherit self keys inputs;
+            nixos-raspberrypi = nixos-raspberrypi;
+            isCM4 = false;
+          };
+          modules = [
+            {
+              nixpkgs.buildPlatform = system;
+              nixpkgs.hostPlatform = "aarch64-linux";
+            }
+            nixos-raspberrypi.nixosModules.nixpkgs-rpi
+            nixos-raspberrypi.nixosModules.raspberry-pi-5.base
+            nixos-raspberrypi.lib.inject-overlays-global
+            nixos-raspberrypi.nixosModules.sd-image
+            nixos-uconsole.nixosModules.uconsole-cm5
+            agenix.nixosModules.default
+            ./hosts/uconsole-cm5/configuration.nix
+          ];
+        }).config.system.build.sdImage;
+      };
+    };
 }

hosts/lazyworkhorse/configuration.nix

@@ -11,6 +11,10 @@
   # Flakesss
   nix.settings.experimental-features = [ "nix-command" "flakes" "flake-self-attrs" ];
   nix.settings.trusted-users = [ "root" "gortium" ];
+  nix.settings.extra-platforms = [ "aarch64-linux" ];
+
+  # QEMU binfmt for cross-building aarch64 NixOS targets
+  boot.binfmt.emulatedSystems = [ "aarch64-linux" ];
 
   # Garbage collection
   nix.gc = {

hosts/uConsole/configuration.nix

@@ -0,0 +1,171 @@
+{ config, lib, pkgs, paths, self, keys, ... }:
+
+{
+  # Basic Host Info
+  networking.hostName = "uConsole";
+  time.timeZone = "America/Montreal";
+  i18n.defaultLocale = "en_CA.UTF-8";
+
+  # System State
+  system.stateVersion = "25.05";
+
+  # Boot & Hardware (migrated to kernel bootloader per nixos-raspberrypi deprecation notice)
+  boot.loader.raspberry-pi.bootloader = "kernel";
+  # kernel managed by nixos-raspberrypi module — don't override, patches are version-specific
+  # boot.kernelPackages = pkgs.linuxPackages_latest;
+
+  # Networking
+  networking.networkmanager.enable = true;
+  services.openssh = {
+    enable = true;
+    settings.PermitRootLogin = lib.mkForce "prohibit-password";
+    settings.PasswordAuthentication = lib.mkForce false;
+  };
+
+  # User
+  users.users.gortium = {
+    isNormalUser = true;
+    extraGroups = [ "wheel" "networkmanager" "video" "dialout" "kismet" ];
+    openssh.authorizedKeys.keys = [
+      keys.users.gortium.main
+      keys.users.gortium.gitea
+    ];
+  };
+  security.sudo.extraRules = [
+    {
+      users = [ "gortium" ];
+      commands = [
+        {
+          command = "ALL";
+          options = [ "NOPASSWD" ];
+        }
+      ];
+    }
+  ];
+
+  # ============================================================
+  # Package groups
+  # ============================================================
+
+  environment.systemPackages = with pkgs; [
+    # ===== Base =====
+    emacs-pgtk
+    git
+    ripgrep
+    fd
+    htop
+    tmux
+    neovim
+
+    # ===== HAM Radio =====
+    js8call
+    wsjtx
+    fldigi
+    pat                        # Winlink client
+    direwolf                   # AX.25 packet modem
+    chirp                      # Radio programming tool
+    hamlib                     # Ham radio control libraries
+    trustedqsl                 # Logbook of the World (LoTW)
+
+    # ===== SDR / RF =====
+    sdrpp                      # SDR++ spectrum analyzer
+    gqrx                       # SDR receiver GUI
+    rtl-sdr                    # RTL-SDR drivers & utilities
+    inspectrum                # Offline signal analysis
+    soapysdr-with-plugins      # SoapySDR + hardware support plugins
+
+    # ===== Mesh / LoRa =====
+    meshtastic                 # Python CLI for Meshtastic devices
+    reticulumStack             # Reticulum Network Stack (rnsd, rnsh, rncp, rnx, rnpath, etc.)
+    lxmf                       # LXMF messaging protocol
+    nomadnet                   # Nomad Network client
+
+    # ===== Security =====
+    nmap
+    aircrack-ng
+    kismet                     # Wi-Fi monitor / IDS
+    bettercap                  # MITM/network attack framework
+    wireshark                  # Packet analyzer
+    hashcat                    # GPU password cracker
+    john                       # John the Ripper
+    sqlmap                     # SQL injection tool
+
+    # ===== GPS / Maps =====
+    foxtrotgps
+    viking                     # GPS map editor
+    gpsbabel                   # GPS data conversion
+  ];
+
+  # Packages noted but not in unstable nixpkgs:
+  #   - metasploit: unfree; install manually via Git clone
+  #   - burpsuite: unfree Java app (Community Edition available for download)
+  #   - sidechannel: not a distinct PyPI package; functionality covered by
+  #     the Reticulum stack. For LXMF GUI client, install Sideband manually
+  #     from github.com/markqvist/Sideband
+
+  # ============================================================
+  # Reticulum Service (rnsd)
+  # ============================================================
+  systemd.services.rnsd = {
+    description = "Reticulum Network Stack Daemon";
+    wants = [ "network-online.target" ];
+    after = [ "network-online.target" ];
+    wantedBy = [ "multi-user.target" ];
+    serviceConfig = {
+      User = "gortium";
+      Group = "gortium";
+      ExecStart = "${pkgs.reticulumStack}/bin/rnsd";
+      Restart = "always";
+      RestartSec = "10s";
+      LimitNOFILE = 65536;
+    };
+  };
+
+  # ============================================================
+  # Kismet Service (Wi-Fi monitoring / mesh node)
+  # ============================================================
+  systemd.services.kismet = {
+    description = "Kismet Wi-Fi Monitor & IDS";
+    wants = [ "network-online.target" ];
+    after = [ "network-online.target" ];
+    wantedBy = [ "multi-user.target" ];
+    serviceConfig = {
+      User = "gortium";
+      Group = "kismet";
+      ExecStart = "${pkgs.kismet}/bin/kismet -c wlan0 --log-base=/home/gortium/kismet_logs --no-nc-ui";
+      Restart = "always";
+      RestartSec = "10s";
+    };
+  };
+
+  # ============================================================
+  # Kernel modules for SDR and radio
+  # ============================================================
+  boot.kernelModules = [
+    "88x2bu"          # Realtek 8812/8821BU USB WiFi (common adapter)
+    "rtl8xxxu"        # RTL8188/8192/8723 USB WiFi
+    "rtl2832_sdr"     # RTL-SDR kernel module
+    "dvb_usb_rtl28xxu" # RTL-SDR DVB-T
+  ];
+
+  boot.blacklistedKernelModules = [ ];
+
+  # ============================================================
+  # Extra udev rules for SDR and HAM radio devices
+  # ============================================================
+  services.udev.packages = with pkgs; [ rtl-sdr ];
+
+  # ============================================================
+  # Enable IPv6 for Reticulum mesh
+  # ============================================================
+  networking.enableIPv6 = true;
+
+  # ============================================================
+  # Firewall: open ports for Reticulum (optional)
+  # ============================================================
+  networking.firewall.allowedTCPPorts = [ 22 ]; # SSH only
+  networking.firewall.allowedUDPPorts = [ ];
+  # Reticulum uses its own encryption and doesn't need open ports
+  # for basic mesh operations (peer-to-peer discovery).
+  # For TCP interfaces, open additional ports as needed.
+}

hosts/uConsole/hardware-configuration.nix

@@ -0,0 +1,26 @@
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "xhci_pci" "usbhid" "usb_storage" "sdhci_pci" "nvme" ];
+  boot.initrd.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  # uConsole CM5 uses NVMe or eMMC for boot storage
+  # The uconsole-cm5 module sets up /boot/firmware and default /
+  # Override device label here if using different storage
+  fileSystems."/" = lib.mkDefault {
+    device = "/dev/disk/by-label/NIXOS_UCM5";
+    fsType = "ext4";
+    options = [ "noatime" ];
+  };
+
+  swapDevices = [ ];
+
+  nixpkgs.hostPlatform = lib.mkDefault "aarch64-linux";
+  hardware.enableRedistributableFirmware = true;
+  powerManagement.cpuFreqGovernor = lib.mkDefault "ondemand";
+}

overlays/reticulum.nix

@@ -0,0 +1,81 @@
+final: prev: let
+  python3 = final.python3;
+  pyPkgs = python3.pkgs;
+in {
+  reticulumStack = python3.pkgs.buildPythonApplication rec {
+    pname = "reticulum";
+    version = "1.2.9";
+    format = "setuptools";
+    src = pyPkgs.fetchPypi {
+      pname = "rns";
+      inherit version;
+      sha256 = "554814231c237b9caacf8df669312e57dd7d3f84b6d4810125087d1a79a75d75";
+    };
+    propagatedBuildInputs = with pyPkgs; [ cryptography pyserial ];
+    doCheck = false;
+    pythonImportsCheck = [ "RNS" ];
+    meta = with final.lib; {
+      description = "Self-configuring, encrypted and resilient mesh networking stack";
+      homepage = "https://reticulum.network/";
+      license = licenses.mit;
+      platforms = platforms.linux;
+    };
+  };
+
+  lxmf = python3.pkgs.buildPythonApplication rec {
+    pname = "lxmf";
+    version = "0.9.8";
+    format = "setuptools";
+    src = pyPkgs.fetchPypi {
+      inherit pname version;
+      sha256 = "30f39f3a975a049c12ee2cfceb3261d24cb5adec881c6821f7354464b3f3650c";
+    };
+    propagatedBuildInputs = [ final.reticulumStack ];
+    doCheck = false;
+    pythonImportsCheck = [ "LXMF" ];
+    meta = with final.lib; {
+      description = "Lightweight Extensible Message Format for Reticulum";
+      homepage = "https://github.com/markqvist/lxmf";
+      license = licenses.mit;
+      platforms = platforms.linux;
+    };
+  };
+
+  nomadnet = python3.pkgs.buildPythonApplication rec {
+    pname = "nomadnet";
+    version = "1.1.1";
+    format = "setuptools";
+    src = pyPkgs.fetchPypi {
+      inherit pname version;
+      sha256 = "fa13b64a10e75b705a58024815ab72451700aa726af96d415ba99dec28dfc40a";
+    };
+    propagatedBuildInputs = with pyPkgs; [ final.reticulumStack final.lxmf urwid qrcode ];
+    doCheck = false;
+    pythonImportsCheck = [ "nomadnet" ];
+    meta = with final.lib; {
+      description = "Nomad Network — resilient mesh communications platform";
+      homepage = "https://github.com/markqvist/NomadNet";
+      license = licenses.mit;
+      platforms = platforms.linux;
+    };
+  };
+
+  rnsh = python3.pkgs.buildPythonApplication rec {
+    pname = "rnsh";
+    version = "0.1.7";
+    format = "setuptools";
+    src = pyPkgs.fetchPypi {
+      inherit pname version;
+      sha256 = "9cb72f25abb1c6d300f8014b264184ff78f592fe88e36094938012990b797c93";
+    };
+    propagatedBuildInputs = [ final.reticulumStack ];
+    doCheck = false;
+    pythonImportsCheck = [ "rnsh" ];
+    meta = with final.lib; {
+      description = "Remote shell over Reticulum";
+      homepage = "https://github.com/acehoss/rnsh";
+      license = licenses.mit;
+      platforms = platforms.linux;
+    };
+  };
+}

patches/0008-panel-cwu50-rex-timing-fix.patch

@@ -0,0 +1,45 @@
+--- a/drivers/gpu/drm/panel/panel-cwu50.c
++++ b/drivers/gpu/drm/panel/panel-cwu50.c
+@@ -27,12 +27,12 @@ static const struct drm_display_mode default_mode = {
+ 	.clock = 61020,
+-	.hdisplay = 1280,
+-	.hsync_start = 1280 + 8,
+-	.hsync_end = 1280 + 8 + 2,
+-	.htotal = 1280 + 8 + 2 + 16,
+-	.vdisplay = 720,
+-	.vsync_start = 720 + 30,
+-	.vsync_end = 720 + 30 + 15,
+-	.vtotal = 720 + 30 + 15 + 15,
++	.hdisplay = 720,
++	.hsync_start = 720 + 30,
++	.hsync_end = 720 + 30 + 15,
++	.htotal = 720 + 30 + 15 + 15,
++	.vdisplay = 1280,
++	.vsync_start = 1280 + 8,
++	.vsync_end = 1280 + 8 + 2,
++	.vtotal = 1280 + 8 + 2 + 16,
+ };
+ 
+ static inline struct cwu50 *panel_to_cwu50(struct drm_panel *panel)
+@@ -586,7 +586,8 @@ static int cwu50_init_sequence2(struct cwu50 *ctx)
+ {
+ 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
+-	int err;
++	int err;
++	u8 buf[4];
+ 
+ 	dcs_write_seq(0xE0,0x00);
+ 
+@@ -633,6 +634,12 @@ static int cwu50_init_sequence2(struct cwu50 *ctx)
+ 
+ 	dcs_write_seq(0x11);// SLPOUT
+ 	msleep (200);
++	dcs_write_seq(0xE0,0x00);
++	mipi_dsi_dcs_read(dsi, 0x04, buf, 3);
++
++	if(buf[0] == 0x39) ctx->is_new_panel = 1;
++
++	dcs_write_seq(0xE0,0x00);
+ 
+ 	dcs_write_seq(0x29);// DSiPON
+ 	msleep (100);