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omarchycn/install/hardware/intel/fix-wifi7-eht.sh
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Ryan Hughes 75cb4f7195 Make setup ISO-only
Remove legacy online installer entrypoints, collapse migrations for 4.0, and move setup responsibilities into target-side system, hardware, and user commands.
2026-06-04 18:37:32 -04:00

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# Temporary fix for Dell XPS 14/16 on Panther Lake
# Disable WiFi 7 (EHT/802.11be) on Intel BE200/BE211 cards
# The iwlwifi driver has a broken EHT RX data path — APs drop to MCS 0 NSS 1
# when EHT is negotiated, making WiFi unusable. Disabling EHT falls
# back to WiFi 6 (HE/802.11ax) which works at full speed.
# This should be removed when Intel fixes the firmware/driver.
if lspci -nn | grep -qE '\[8086:(e440|272b)\]'; then
mkdir -p /etc/modprobe.d
cat > /etc/modprobe.d/iwlwifi-disable-eht.conf <<'EOF'
# Temporary fix Dell XPS 14/16 on Panther lake
# Disable WiFi 7 (EHT) on Intel BE200/BE211 — broken RX rate adaptation
# Remove this file when fixes land in the iwlwifi EHT data path
options iwlwifi disable_11be=Y
EOF
fi