Black screen during Login

lspintzyk · 07-19-2018, 05:59 AM

Hi,

This is expected what you see.

DisplayLink docks does not support bios phase.
Unfortunately Linux boot up phase is also not supported at the moment.

When speaking about Login screen this is also expected. Unfortunately this stopped working when Ubuntu switched from LightDM and Unity to Gnome with Gdm dsplay manager. Which miss support for that case. I hope this will change in the future but this depends on community.

bestname · 01-05-2019, 02:08 PM

Quote:

Originally Posted by lspintzyk

When speaking about Login screen this is also expected. Unfortunately this stopped working when Ubuntu switched from LightDM and Unity to Gnome with Gdm display manager. community.

My workaround was to install LightDM as the display manager. Afterwards, it worked sufficiently.

colsartoris · 11-17-2020, 01:19 AM

Quote:

Originally Posted by lspintzyk

When speaking about Login screen this is also expected. Unfortunately this stopped working when Ubuntu switched from LightDM and Unity to Gnome with Gdm dsplay manager. Which miss support for that case. I hope this will change in the future but this depends on community.

I just installed Linux Mint 20 and wrangled DisplayLink to work for me; however, I'm still having the issue stated here. When I turn the computer on, the monitors are asleep until I enter the password blindly. Linux Mint uses LightDM, so I'm wondering if there's a script I could add to a .conf file or something that would make the monitors wake up at the login screen. Thanks!

kiroshi · 01-07-2021, 10:58 AM

Faced the same issue. Please help

I'm using an HP laptop and HP Universal Dock G2

Code:

Operating System: Linux Mint 20
Kernel: Linux 5.4.0-59-generic
Architecture: x86-64

GRUB_TITLE=Linux Mint 20 Cinnamon

I have two HP laptops and a newer one has an option in BIOS called "Enable High Resolution mode when connected to a USB-C DP alt mode dock" (it makes my USB 3.0 ports work like 2.0 but monitors work's on login) and it fixes this issue, but the older laptop doesn't have this option in BIOS...

kiroshi · 01-08-2021, 07:32 AM

Quote:

Originally Posted by kiroshi

Faced the same issue. Please help

I'm using an HP laptop and HP Universal Dock G2

Code:

Operating System: Linux Mint 20
Kernel: Linux 5.4.0-59-generic
Architecture: x86-64

GRUB_TITLE=Linux Mint 20 Cinnamon

I have two HP laptops and a newer one has an option in BIOS called "Enable High Resolution mode when connected to a USB-C DP alt mode dock" (it makes my USB 3.0 ports work like 2.0 but monitors work's on login) and it fixes this issue, but the older laptop doesn't have this option in BIOS...

so... I folowed steps in this post https://askubuntu.com/a/69501 and all works just fine. Problem is solved for me.

01-07-2021, 10:58 AM	#4
kiroshi Junior Member Join Date: Jan 2021 Posts: 3	Faced the same issue. Please help I'm using an HP laptop and HP Universal Dock G2 Code: Operating System: Linux Mint 20 Kernel: Linux 5.4.0-59-generic Architecture: x86-64 GRUB_TITLE=Linux Mint 20 Cinnamon I have two HP laptops and a newer one has an option in BIOS called "Enable High Resolution mode when connected to a USB-C DP alt mode dock" (it makes my USB 3.0 ports work like 2.0 but monitors work's on login) and it fixes this issue, but the older laptop doesn't have this option in BIOS... Last edited by kiroshi; 01-07-2021 at 11:05 AM.

07-19-2018, 05:59 AM	#1
lspintzyk Member Join Date: Feb 2013 Posts: 65	Hi, This is expected what you see. DisplayLink docks does not support bios phase. Unfortunately Linux boot up phase is also not supported at the moment. When speaking about Login screen this is also expected. Unfortunately this stopped working when Ubuntu switched from LightDM and Unity to Gnome with Gdm dsplay manager. Which miss support for that case. I hope this will change in the future but this depends on community.