initial commit

fix-mt7921-wifi.sh

@@ -0,0 +1,57 @@
+#!/bin/bash
+# Fix MT7921 WiFi slow connection and stability issues
+# Run as root or with sudo
+
+echo "Fixing MT7921 WiFi issues..."
+
+# 1. Set power management to off (already done, but ensure it's persistent)
+echo "Setting WiFi power management to off..."
+for iface in $(iw dev | awk '/Interface/ {print $2}'); do
+    iw dev "$iface" set power_save off
+done
+
+# 2. Create NetworkManager config to disable power saving
+echo "Creating NetworkManager config..."
+cat <<EOF | sudo tee /etc/NetworkManager/conf.d/wifi-powersave.conf
+[connection]
+wifi.powersave = 2
+EOF
+
+# 3. Add kernel parameters for MT7921 stability (systemd-boot)
+echo "Adding kernel parameters for MT7921..."
+if ! grep -q "pcie_aspm=off" /boot/loader/entries/arch.conf; then
+    sudo sed -i 's/options.*/& pcie_aspm=off/' /boot/loader/entries/arch.conf
+    echo "Added pcie_aspm=off to kernel parameters"
+fi
+
+# 4. Create udev rule to disable ASPM for MT7921
+echo "Creating udev rule for MT7921..."
+cat <<EOF | sudo tee /etc/udev/rules.d/99-mt7921-aspm.rules
+# Disable ASPM for MT7921 WiFi cards
+ACTION=="add", SUBSYSTEM=="pci", ATTR{vendor}=="0x14c3", ATTR{device}=="0x7961", ATTR{power/control}="on"
+EOF
+
+# 5. Set WiFi regulatory domain (if needed)
+echo "Setting WiFi regulatory domain..."
+if command -v iwreg &> /dev/null; then
+    sudo iwreg set 00
+else
+    echo "iwreg not found, skipping regulatory domain setting"
+fi
+
+# 6. Reload services
+echo "Reloading services..."
+sudo systemctl reload NetworkManager
+sudo udevadm control --reload-rules
+sudo udevadm trigger
+
+echo ""
+echo "MT7921 WiFi fixes applied!"
+echo ""
+echo "To apply kernel parameter changes, you need to:"
+echo "1. Reboot the system (systemd-boot automatically uses the updated config)"
+echo ""
+echo "If issues persist, try these additional steps:"
+echo "- Check if your router supports WPA3, try WPA2 instead"
+echo "- Try connecting to 2.4GHz instead of 5GHz"
+echo "- Update your kernel to the latest version"