https://bugzilla.kernel.org/show_bug.cgi?id=208831
Bug ID: 208831
Summary: Waking up dual screen through Display Port and Dell
dock causes invalid opcode: 0000 [#1] SMP NOPTI
Product: ACPI
Version: 2.5
Kernel Version: 5.4.0-050400-generic #201911242031
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: EC
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Created attachment 290793
--> https://bugzilla.kernel.org/attachment.cgi?id=290793&action=edit
Kernel logs
My PC is connected to the monitor through a DisplayPort dock WD19DC from Dell.
How to reproduce :
* Connect a dual screen on Dell laptop through the Dock
* Wait idle until the screen goes black
* Move your mouse to wake up the screen : the screen on the display port stays
black
* Unplugged and plug again the display port : OS completely freeze without
mouse, keyboard or access to other TTY trought Alt + Ctrl + F[1-9].
* You have to force reboot the computer
Corresponding kernel log in attachement
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