https://bugzilla.kernel.org/show_bug.cgi?id=220786
Bug ID: 220786
Summary: USB-C charging capped at 34W on Asus ROG zephyrus G16
(2023)
Product: ACPI
Version: 2.5
Kernel Version: 6.17.6-arch1-1
Hardware: Intel
OS: Linux
Status: NEW
Severity: normal
Priority: P3
Component: Power-Battery
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Created attachment 308944
--> https://bugzilla.kernel.org/attachment.cgi?id=308944&action=edit
Contents of files in /sys/class/ucsi-source-psy-USBC000:001 directory
I have a 100W usb-c charger. Charger says its giving 34W consistently. The
laptop is not charging at all - just getting power to work. After plugging in
the charger I get the following in journal:
```
kernel: ucsi_acpi USBC000:00: ucsi_handle_connector_change:
GET_CONNECTOR_STATUS failed (-110)
```
```
uname -a
Linux ROG-zephyrus-G16 6.17.6-arch1-1 #1 SMP PREEMPT_DYNAMIC Wed, 29 Oct 2025
22:23:47 +0000 x86_64 GNU/Linux
```
I updated BIOS, but the issue persists. My exact model is GU603ZI-N3009. It
used to charge the normal speed around a month ago. Tested also with version
6.17.1 and it behaved the same
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