u/lamb2k

I'm running CachyOS 7.2-rc7 on my MSI Claw 8 EX, and it absolutely rips after the latest driver updates. I've benchmarked a dozen DX11/12 games and the performance difference is night and day, so much that I've finally retired Windows as the primary gaming partition.

It takes a bit of work to get everything working 100%, but my fixes, a few of which are cherry-picked from Valve, are below incase you want to give it a try.

Engineering guide is also below for reference by the Linux developers in the community to hopefully speed up durable fixes.

Overview Links:
Context / Overview
Getting Started
Engineering Reference

Fix Links:

• Audio: Restores the internal speakers and microphone.
• Platform controls: Exposes TDP limits, performance profiles, fan curves, fan speeds, and the battery charge limit.
• GameScope/MangoHud telemetry: Corrects battery draw, CPU/GPU power, shared-memory VRAM, fan speeds, and CPU/GPU temperatures.

Forked ClawTweaks and implemented extended TDP controls and the ability to edit the effective VRR range. 3DMark results and UI screenshots attached.

Fixes Required to Work:
- Mesa Main Build Drivers (26.2 dev)
- Input Plumber
- TD Mapping for Mainboard

Love the look, performance, ergonomics and battery life, but it’s been a hard pill to swallow coming from SteamOS running pristine on a Legion Go 2.

Anyone else experiencing this?

Quake 2 running at 120 fps (12 watts)

Fixes:
- All Controller Inputs Detected
- Steam Menu Controller Shortcuts
- Enabled Native TDP Controls
- Enabled CPU Scheduling
- Bumped Mesa to Main

Setup:
- Update to the latest firmware in Windows
- Download and flash 3.8.5 OOBE repair image
- Disable secure boot in bios
- Boot / install via repair image
- Update to main / beta for 3.9 which packages a few mesa driver improvements

Working:
- Most games (a few sub-optimally)
- Sleep / Wakeup
- Bluetooth
- WiFi
- Brightness Controls
- Audio

Not Working:
- TDP Slider
- Controller Inputs (I had to cherry pick an upcoming inputplumber PR that fixes device recognition)

Other Observations:
Optiscaler is working and kicks ass. There are some serious performance / compatibility improvements in the pipeline with Steam OS 3.9 and beyond via community driver work. Noticed a few contributions from both the Intel and ARM engineering teams in the commit history. Makes sense with the viability of Panther Lake as a first class mobile platform.

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