Referring to your article:
https://nascompares.com/news/qnap-ts-1655-atom-based-12-bay/
Where is the HDMI output 1. HDMI 2.0 ?
How do you connect any monitor to this device to allow access to the BIOS and Proxmox and TrueNAS to be installed without having to pay for and install an unnecessary high-end graphics adapter?
Why are NAS units being shipped without built-in video output being mandatory?
Has anyone tried connecting a USB 3.0 to HDMI adapter to a QNAP TS-1655 or similar with any success to access the BIOS?
I contacted QNAP support about this and was immediately asked why I need to access the BIOS!!!!
Most likely it is not possible.
But if you wanna play, try this
If you need to perform these steps through SSH (Secure Shell), you'll need to execute commands directly on the Linux command line. Here's how you can do it:
Connect to Your Linux System: Use an SSH client to connect to your Linux system. You'll need the IP address or hostname of the Linux system and appropriate login credentials (username and password or SSH key).
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ssh username@hostname_or_ip_address
Check System Compatibility: You can check if the USB HDMI adapter is recognized by your system using various commands. One common command is lsusb, which lists USB devices connected to your system:
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lsusb
This command will show a list of connected USB devices. Look for the entry that corresponds to your USB HDMI adapter.
Install Drivers (if necessary): If you need to install drivers, you can do so using package management tools like apt (Ubuntu/Debian) or yum (CentOS/RHEL). First, update the package lists:
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sudo apt update
Then, install the necessary drivers. This step varies depending on the specific drivers required for your USB HDMI adapter. Refer to the manufacturer's documentation for instructions on installing drivers via the command line.
Restart the System (if required): If you installed drivers that require a system restart, you can do so using the following command:
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sudo reboot
Configure Display Settings: Once the drivers are installed, you may need to configure display settings. This can involve modifying X11 configuration files or using tools specific to your desktop environment. For example, on Ubuntu with the GNOME desktop environment, you can use the gnome-control-center command to access display settings:
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gnome-control-center display
Adjust the display settings as needed.
Test the Connection: After configuring the display settings, test the connection by connecting a monitor or display device to the USB HDMI adapter. You should see the display mirrored or extended as configured.