Hi Ousama,

Thank you again for your support. I tested SlimbookOS r101 on a live USB with both Gnome and KDE. It's still the same 🙁

I'm opening a ticket following your recommendation.

Dear Sfanx,

please do open a ticket by filling this form:

https://slimbook.com/en/support

In the meantime, can you try using Slimbook 24.04 with a live USB and reproduce the issue?

Thank you Antonio for caring.

I started the session in X11 using the wheel at the bottom right of the screen on the logging page. Checked that I'm using X11:

$ echo "$XDG_SESSION_TYPE"
x11

However, after going into sleep mode, laptop's screen is still illuminated.

I will try to find another monitor to test if the behavior could be linked to a specific monitor.

Prueba iniciar sesión con X11 y ver si el comportamiento cambia.

Hi Ousama,

Unless I misunderstood what you suggested, I updated the firmware with the latest available version.

"I did a bios update as mentioned. But the issue is still present."

"- **Firmware Version:**  SLIMH6.05"

Please François , did you try what I suggested on the previous answer?

Please advise.

Hi,

thank you for the replies.

The external screen is actually working fine. I have no issue with it. The behavior issue is when following conditions are met: 1. the display is connected to the hub and 2. the laptop goes into sleep mode. While the laptop is in sleep mode, the laptop's screen remains illuminated.

If the external display is directly connected to the HDMI port of the laptop and the laptop goes into sleep mode, then everything is fine. Laptop's screen is not illuminated.

This is problematic for me because it drains the battery, it lightens the room and it adds use time to the screen which may affect its durability.

I did a bios update as mentioned. But the issue is still present.

Here is the System Details Report

## Report details
- **Date generated:**                              2025-06-09 11:30:30

## Hardware Information:
- **Hardware Model:**                              SLIMBOOK EXCALIBUR-16-AMD7
- **Memory:**                                      16.0 GiB
- **Processor:**                                   AMD Ryzen™ 7 7840HS w/ Radeon™ 780M Graphics × 16
- **Graphics:**                                    AMD Radeon™ 780M
- **Disk Capacity:**                               (null)

## Software Information:
- **Firmware Version:**                            SLIMH6.05
- **OS Name:**                                     Slimbook OS
- **OS Build:**                                    (null)
- **OS Type:**                                     64-bit
- **GNOME Version:**                               48
- **Windowing System:**                            Wayland
- **Kernel Version:**                              Linux 6.14.0-15-generic

Dear François,

we are sorry to hear that you are experiencing issue with your docking hub, please confirm that your laptop is the following one:

If yes, please follow this tutorial where you have all the files:

https://slimbook.com/en/blog/news-1/post/bios-update-for-excalibur-amd-7840hs-and-8845hs-438

Please let us know if you still have issues.

Hola,

Does the external display only fail when the laptop goes to sleep or does it sometimes work with the dock?

Saludos!