Hello, I installed Debian 13 (Trixie) on an internal SSD connected directly to an ASUS PRIME B760-PLUS motherboard. The installation was fully successful: Wi-Fi, Bluetooth, firmware, kernel modules, updates and upgrades all worked perfectly on that hardware.
After completing the installation, I moved the same SSD into a USB‑C external enclosure (Realtek RTL9210B‑CG) to use Debian as a portable system on my ASUS laptop. The system boots fine from the external SSD, but Wi‑Fi and Bluetooth are completely missing: - lspci shows no wireless device - lsusb shows no Bluetooth controller - rfkill shows nothing - dmesg contains no firmware loading attempts When I put the SSD back into the original motherboard (ASUS PRIME B760-PLUS), Wi‑Fi and Bluetooth work normally. So the installation and firmware are correct. I have already tried: - installing firmware-iwlwifi, firmware-realtek and other firmware packages - full apt update and apt full-upgrade - reinstalling kernel modules - testing multiple kernels - disabling Secure Boot and Fast Boot - BIOS shows Wireless Interface as "Unlocked" It seems that when Debian is booted from a USB‑C external SSD, the kernel does not enumerate internal PCIe devices (including the laptop’s Wi‑Fi/Bluetooth card). Question: Is there any way to force Debian (or the kernel/bootloader/BIOS) to detect internal PCIe devices when booting from an external SSD via USB‑C? I am looking for a practical and permanent solution. Any help from experienced Debian users would be greatly appreciated. Thank you. -- Best regards, Behrooz Kashaf Rashti
