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-   -   Disconecting Docking station Crashes Laptop Ubuntu 21.04 (https://displaylink.org/forum/showthread.php?t=67801)

locose 07-24-2021 03:55 PM

Disconecting Docking station Crashes Laptop Ubuntu 21.04
 
Hi strange problem with Ubuntu 21.04 runing 5.11.0-25 ( default for 21.04) install

Everything is working fine with display link. kind of a bit messy moving Displays to the correct order because of the nvidia graphics on the laptop. however when it comes to unplugging. even if i just remove one of the monitors from the dock it completely crashes the laptop. or maybe just the X Server
even to the point that if i reboot it starts by disconecting the dock and then crashes and has to be forcefully reboot by holding down the power.
Only safe way to turn off is to hibernate but then the resume only works if the dock is still plugged in. so i still can't really disconect it safely.

i Have looked in syslog for something obvious and journalctl but not to much luck.

Anyway if anyone has any idea about what steps to take for investigating this would be greatly appreciated thanks in advance.

Bravo_Mike 07-31-2021 01:36 AM

Unfortunately finding myself stuck in a similar situation. Asus Zephyrus G14, Ryzen 4800HS with NVIDIA 1650 running Arch 5.13.6 right now. Switching with optimus-manager works exactly as expected, and everything is perfect until the dock is introduced.

Running the iGPU results in absolutely abysmal performance, frame rates in the teens - but docking and undocking work just fine. Switch over to the NVIDIA and performance is fantastic, but undocking, removing a display, making a display configuration change, etc. results in an immediate hard lock of the machine. Only resolution is a power cycle.

I've looked through what logs I can as well trying to find something, but really don't end up with a whole lot of information. Not that it really matters, as I honestly expect there'd be very little official response anyways.

Sgerber 09-14-2021 06:08 AM

Exactly the same situation here with a HP Zbook Firefly 15 G8 running Kubuntu (kernel 5.11 and Plasma 5.21.4).
It will also crash if I try to change the resolution of one screen (either the laptop one or the ones connected to the docking)

python_stat 09-18-2021 10:41 PM

Disconnecting or changing display setting crashes computer
 
Unplugging the usbc or usb-a or suspending my laptop or updating Displays setting like setting primary monitor, resolution, etc would crash my computer monitor. My screen would freeze and I cannot do anything. I can listen to audio if it happens to be running when it freezes. The only way to fix this is to power reset my computer.

displaylink was working a 2 months ago until I updated my os with one of those routine update.

Setup information
* Dock: Dell D6000 Universal Dock
* OS: Ubuntu 20.04.3 LTS
* VNOME Version: 3.36.8
* laptop: MSI PS42
* GPU: NVIDIA Corporation GP108M [GeForce MX150] Driver Version: 470.63.01

david89 09-29-2021 07:01 AM

Hello! Exact same behaviour in Ubuntu 20.04 with latest drivers (5.4.1) in a device with two ports. When you unplug, change the resolution, or switch monitors when device is connected, the computer crash and the only way to unlock is power of from the button. If you suspend your computer yo need to have the device plugged, if not, then crash.

This is a very anoying issue. We are suffering it since the last kernel updates (in technical sheet, it is compatible), with no patch or solution. We bough devices with displaylink (not cheap!) to work with our monitors, and we bought an stress: we can't use our JOB laptops as they are, because they crash with a natural use because drivers for community are not serious thing to DisplayLink.

No response from official company, the releases are slow and not coordinated with the official repository of EVDI. This is not serious for a supossed quality product. Please take control of the driver and launch for linux community a FUNCTIONAL DRIVER.

Bravo_Mike 09-29-2021 08:41 PM

I'm beyond holding out hope for this product. As a Linux user, my dock hasn't functioned the way it's intended to for several months now, and that's having tested across separate machines with different hardware configurations all the while modifying software configurations to see if I could reach some result that even comes close to reaching a state of reasonable usability.

The utter lack of support and communication across different forums seemingly delivers quite the impression as to where the Linux community lies in their order of priorities (personal guess, it's closer to the bottom of the list than it is the top).

For now, I'm keeping my eyes open for another alt-mode dock that will actually get out of the way and let me work. I don't think I've ever been quite so disappointed in a technology or product as I am with DisplayLink.

"Sky High Prices, Rock Bottom Support!"

david89 09-30-2021 07:04 AM

Quote:

Originally Posted by Bravo_Mike (Post 92697)
I'm beyond holding out hope for this product. As a Linux user, my dock hasn't functioned the way it's intended to for several months now, and that's having tested across separate machines with different hardware configurations all the while modifying software configurations to see if I could reach some result that even comes close to reaching a state of reasonable usability.

The utter lack of support and communication across different forums seemingly delivers quite the impression as to where the Linux community lies in their order of priorities (personal guess, it's closer to the bottom of the list than it is the top).

For now, I'm keeping my eyes open for another alt-mode dock that will actually get out of the way and let me work. I don't think I've ever been quite so disappointed in a technology or product as I am with DisplayLink.

"Sky High Prices, Rock Bottom Support!"

I'm suscribe each word. Please, could be interesting share the similar devices without DisplayLink tecnology, that works (if you don't want share here, please write me a private message). I lost completly any hope: 1 by the unsupported technology on Linux and 2 unsupported community, the base of any good technology.


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