You have been subscribed to a public bug:
Operating system data:
Linux 5.15.0-46-generic #49-Ubuntu SMP Thu Aug 4 18:03:25 UTC 2022
x86_64 x86_64 x86_64 x86_64 GNU/Linux
Description: Ubuntu 22.04.1 LTS
Release: 22.04
Just installed. When testing Ubuntu there was no problem.
Device data:
Dell Precision 5530 2in1 (Kaby Lake-G workstation)
| Intel Core i7-8706G
| Radeon WX Vega M GL, 4K UHD
What happens:
With kernel to 5.15: Before logging in, just after selecting the linux
kernel from grub, the screen goes black, no ubuntu+dell loading screen,
no nothing. With the black screen, random vertical and horizontal lines
appear and move if the cursor moves. There is no way around this, and
the only alternatives to change this is:
1. close the laptop lid (sleep mode) and restart.
2. Connect an HDMI to the USB-C port and then disconnect it.
If either of the two steps is followed, the display corrects itself and
works perfectly.
This happened to me using
- Ubuntu 20.04 with Linux 5.15.0.43-generic
And now that I upgraded it also happens to me
- Ubuntu 22.04.1 with Linux 5.15.0-46-generic
- Ubuntu 22.04.1 with Linux 5.18.17-051817
- Ubuntu 22.04.1 with Linux 5.14.21-051421
The error did not appear in using
- Ubuntu 20.04 with Linux 5.13.0-52-generic or earlier
- Ubuntu 22.04.1 with Linux 5.13.0-051300
I will provide all the information you see necessary to solve the
problem.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: blackscreen bot-comment display4k hidpi kernel-bug notlogin uhd
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Black screen with lines when booting kernel 5.14 to 5.18
https://bugs.launchpad.net/bugs/1986740
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