ValveSoftware
Steam Deck OLED Power Delivery Problems
Your system information
- Steam client version: 1705108172
- SteamOS version: 3.5.7
- Opted into Steam client beta?: [Yes]
- Opted into SteamOS beta?: [Yes]
- Have you checked for updates in Settings > System?: [Yes]
Please describe your issue in as much detail as possible:
My issue is rather unique and I will do my best to describe it. Disclaimer: This battery bank worked just fine on my Steam Deck LCD but no longer works on my Steam Deck OLED.
My battery bank is this one: Amazon
The cord I am using is the same one that worked on my LCD deck, a 100W PD capable USB-C to USB-C cord. The power bank charges my iPhone and switch just fine. So it works. My steam deck OLED also charges just fine using the official charger. There must be something to do with how Steam Deck OLED is handling Power Delivery.
Steps for reproducing this issue:
I tested the following just now:
-
Battery Bank (USB-C PD) -> Steam Deck= White light. Slow drain on idle.
-
Battery Bank -> Dock -> Steam Deck= Orange Light Charge.
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Official Charger -> Dock -> Steam Deck= Orange Light Charge.
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Official Charger -> Steam Deck= White light charge.
So it looks like there is a communication error in the Power Delivery systems when directly connecting battery bank to the Steam Deck. I wonder what changed from the LCD to the OLED? I never got a slow charge warning when using this battery bank and cable with my LCD steam deck.
It seems that valve changed something in OS 3.5 with the USB Port driver when in gaming mode. Since 3.5 I cannot connect an external monitor to the usb c and hear sound via my headphones from the headphone jack in gaming mode while it still works in desktop mode.
Maybe you could try it in desktop mode.
Just a try. I am not a Dev.
Just upgraded from an LCD to an OLED deck and discovered that it charges significantly slower than the LCD on lower wattage chargers. I connected both the LCD and OLED to the same phone charger plugged into a wattage meter, and while the LCD is pulling 13 watts, the OLED is only pulling 5 watts. Would love to know if this is a bug or a hardware issue.
