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  • need help disabling some devices / device scanning - lspci shuts down m

    From Eugen Stan@21:1/5 to All on Tue Jul 5 09:20:01 2022
    Hello,

    I'm writing here because I am a bit desperate and figured it's worth a
    shot.

    I have a Lenovo E480 with Radeon RX550 https://www.lenovo.com/in/en/laptops/thinkpad/thinkpad-e-series/ThinkPad-E480/p/22TP2TEE480
    .

    The computer shuts down when I do lspci, hwinfo, or start lutris (for
    games) and sometimes when I log-in after resume.

    Otherwise the computer works great and there are no issues.

    If I disable acpi during kernel boot --acpi=off lspci works ok.
    Any idea what is happening?
    Any idea how I can disable ACPI scanning for the GPU / new video devices ?!

    Any ideas on what to try to fix this?


    More information:

    * Running Debian 11.3 Linux 5.10.0-15-amd64 #1 SMP Debian 5.10.120-1 (2022-06-09) x86_64 GNU/Linux
    * I took the laptop to two repair shops. thermal paste was replaced.
    * I upgraded Bios to latest version.

    One thing that I did notice is that I can't see the dedicated Radeon GPU
    in lspci.

    Ouptut from lspci, lsmod and dmesg:

    lspci -nnk -> https://paste.debian.net/plain/1246205

    lspci -> https://paste.debian.net/plain/1246206

    lspci -vvv https://paste.debian.net/plain/1246207

    lsmod -> https://paste.debian.net/plain/1246207

    dmesg -T https://paste.debian.net/1246209/


    Thanks,
    Eugen

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