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    Clevo W650SH and TPM module under Linux

    Discussion in 'Sager and Clevo' started by jassiejee, Feb 20, 2019.

  1. jassiejee

    jassiejee Newbie

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    Hi,

    I have a Clevo W650SH clone with stock BIOS and a Linux booted in bios-mode.

    In Clevo's service manual I see it has a TPM chip -- some Infineon SL9635/9655. Also rngd -l reports "TPM module found but disabled". And tpm-tis / tpm-infineon kernel modules refuse to work.

    Stock BIOS doesn't have any option about "security chip" or similar.

    It might well be that the chip is disabled in BIOS -- in my country "cryptography hardware" requires official "certification" and vendors may simply switch such hardware off instead of messing with government paper monkeys. Does anyone have a W650SH with unlocked BIOS to see what it says about its TPM?

    Also I tried to switch to uefi-mode boot. Unfortunately, in uefi-mode it doesn't give me any boot options besides some "Windows 8" and network booting... Does anyone have a Linux booted in uefi-mode to check if the chip works this way?
     
    jassiejee, Feb 20, 2019
    #1
  2. Meaker@Sager

    Meaker@Sager Company Representative

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    I would double check the chip is actually on the motherboard. It is a factory option.
     
    Meaker@Sager, Feb 20, 2019
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  3. Vasudev

    Vasudev Notebook Nobel Laureate

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    It is better to check for infineon TPM FW updates and I think its affected by security flaw and that might be the reason why OS has disabled dTPM.
     
    Vasudev, Feb 20, 2019
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