What controller are you using with the Deck?
My pick after searching around is the 8BitDo Ultimate C (link) which is the cheaper version of the ultimate with no dock. So far, it’s been working well for me. I just had to restart the Deck the first time after the pairing, since then, it recognize the device all the time.
Post your model below
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All I own are ds5s and they work great. The only PC game I’ve played that would have haptic vibrations is FFXIV and I think it works? It’s been a while since I’ve tested it
Edit: it does not, but I recall it working on my Linux desktop out of the box. Might be a game mode limitation or I need to adjust a setting