Problems both with wayland and xorg
3 Attachment(s)
Reported to Nvidia as well here. Tried with both dual GPU and Nvidia-only.
What I am up to Connect a second HDMI display via a type C hub Problem with Xorg (logs in attachments 1 and 2) 1. Works fine before a suspend. After a suspend I am getting exactly 10 seconds freezes with brief intervals on both screens if the external screen is connected via usb-c. 2. Reboot solves it (but I do want to be able to suspend my laptop) 3. Disconnecting the second display or connecting HDMI to HDMI (not via hub) does not produce those freezes. 4. Doesn't matter if the display was connected before/during suspend or not. Problem with Wayland (logs in attachment 3) 1. Suspends go smooth, but the second screen is always tearing and its FPS is low. 2. Connecting HDMI to HDMI (not via hub) works fine with Wayland as well. Hardware: OS: Ubuntu 22.04 LTS x86_64 Host: ROG Strix G513QC_G513QC 1.0 Kernel: 5.15.0-37-generic DE: GNOME 42.1 CPU: AMD Ryzen 7 5800H with Radeon Graphics (16) @ 4.463GHz GPU: NVIDIA GeForce RTX 3050 Mobile GPU: AMD ATI 05:00.0 Cezanne Memory: 16GB Nvidia driver: v515 |
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Presuming my impression is correct, then DisplayLink will not be able to assist you. |
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While the device is connected to your system, from within a terminal run the command 'lsusb' (without the quotes) in order to see what USB devices are detected by the host. If no entries are present with VID '17e9', then the device does not have DisplayLink technology inside. |
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1. t that's not DisplayLink, then what is it? I don't know of any other similar technology via USB. 2. Can you point me at other similar products that certainly use DisplayLink technology? I have tried Anker and another hub, but both had the same symptoms. |
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1. I can't be sure what technology is in the device you are using. If pressed to guess, the device simply relies on the video output capabilities of your computer's built-in USB Type-C port in order to function. 2. DisplayLink has a page that helps you find products based on their technology here --> https://www.synaptics.com/products/d...ylink-products |
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