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: acpi...@kernel-bugs.osdl.org Reporter: matthias.beaup...@gmail.com 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 -- You are receiving this mail because: You are watching the assignee of the bug. _______________________________________________ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla