You are not logged in.
Hey everyone,
I'm experiencing recurring ping spikes and latency instability on my onboard Mediatek MT7922 adapter on Arch Linux, even after attempting a number of optimizations.
Overall it's not a huge problem for regular PC usage i.e. like work, streaming, Youtube etc. but it's a HUGE problem when gaming, because these lag spikes are deadly in Multiplayer games.
System Info:
Kernel: Both linux (6.15.3-arch1-1) and linux-lts (6.12.34-1-lts) tested
Wi-Fi Adapter: Mediatek MT7922 (onboard)
Using NetworkManager
Network controller: MEDIATEK Corp. MT7922 802.11ax PCI Express Wireless Network Adapter
Subsystem: MEDIATEK Corp. MT7922 802.11ax PCI Express Wireless Network Adapter
Kernel driver in use: mt7921e
Kernel modules: mt7921e
Tweaks and Workarounds that I attempted.
1. MAC Address Randomization Disabled
2. ASPM Disabled
3. IPv6 Disabled
4. Bluetooth Disabled
5. Disabled Wi-Fi power saving:
Frequent latency fluctuations every ~5–10 pings
After all tweaks:
ping -D -i 0.2 google.com
Majority of responses: <50ms
Still intermittent spikes: 150–250ms, randomly
dmesg and journalctl show no significant hardware or driver-related logs correlating with spikes
Testing was done close to the router, strong 5GHz signal
Same network on Windows shows stable ping (~13-15ms)
Spikes are not tied to bandwidth-heavy activities
Router set to static 5GHz channel (no DFS, no overlap)
I’ve tried nearly everything I could find on forums and wiki related to Intel Wi-Fi latency tuning. Open to suggestions for further investigation or tweaking.
Thanks in advance - happy to get some additional logs if needed.
Last edited by ISuckAtCompute (2025-06-25 11:39:40)
Offline