Bug 218526

Summary: Unable to achieve 240hz on usb4 docking station
Product: Drivers Reporter: Samuel (samworlds123)
Component: USBAssignee: Default virtual assignee for Drivers/USB (drivers_usb)
Status: NEW ---    
Severity: normal    
Priority: P3    
Hardware: AMD   
OS: Linux   
Kernel Version: Subsystem:
Regression: No Bisected commit-id:

Description Samuel 2024-02-24 14:48:06 UTC 
Kernel version used: 6.7.5

Using a display1.2 port to display1.4 port on the dock I'm not able to get 240hz on linux I max out at 165hz

On windows with the same dock and montior I get 240hz 

I've tested 3 wayland compositors which all had the same results.


Cpu: 7940hs, usb4 port with 40gbs
Comment 1 Samuel 2024-02-29 01:42:27 UTC 
monitor =  Alienware aw2521hf

dock = Cable Matters 8-in-1 Portable 40Gbps USB4 Hub (USB 4 Dock)
Comment 2 Samuel 2024-02-29 01:44:17 UTC 
Dock also has to replugged sometimes for displays to work....
Comment 3 Samuel 2024-03-26 03:43:54 UTC 
Still happening on 6.8.1