The debian backports 4.8 standard kernel loads the module fjes on my thinkpad T460s.

How can I find out why this module is loaded, i.e. which hardware triggers loading this module?

  • Kernel will detect new hardware and load this module on the boot. When kernel didnt enable this module.Kernel didnt load this module. Even kernel detected new hardware on the boot.
    – supriady
    Jan 6, 2017 at 11:24
  • Actually you can run # lsmod to check all modules loaded. And you can check fjes module info with # modinfo fjes.ko.If I am not mistaken.Another users also post the question about fjes module.It called Fujitsu device.
    – supriady
    Jan 6, 2017 at 11:35

1 Answer 1


You can use lspci -v. You will need to grep (probably with -i to ignore case) for your module shown in lsmod. e.g. to find r8169:

lspci -v |grep -i -A 4 -B 4 r8169

You can change the number of lines before and after (A, B) to your liking/needs.

I found another user had the same question. There is a script here to find out.

  • No result, not with lspci -nk, too.
    – Jan
    Jan 5, 2017 at 21:41
  • Check with lspci -v by itself. Question: is fjes showing up in lsmod? I think fjes is a Fujitsu Extended Network Device Driver. Did you check your ethernets/wifis/networks in the lspci output?
    – number9
    Jan 5, 2017 at 21:48
  • lspci only shows Intel devices and a Realtek one (SD card reader).
    – Jan
    Jan 5, 2017 at 21:54
  • That's... pretty odd. Got on my debian machine, lspci shows everything. Are you doing this as root/elevated privileges? I will admit, I am not on a laptop, and do not have your kernel installed (I bet). I think the script on the link I posted could be modified to search all directories in /sys/class and print them. That may or may not help your cause.
    – number9
    Jan 5, 2017 at 22:16
  • 2
    There are more busses than just PCI, and other kernel subsystems that won't list modules in lspci. Try lsusb, lshw, lsmod for example.
    – einonm
    Jan 7, 2017 at 8:43

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