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Re: Buster boot messages

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On 7/10/20 4:14 PM, Sven Hartge wrote:
> Klaus Jantzen <k.d.jantzen@mailbox.org> wrote:
>> On 7/10/20 11:48 AM, Sven Hartge wrote:
>>> Klaus Jantzen <k.d.jantzen@mailbox.org> wrote:
>>>> the first messages that appear on the screen during the boot process
>>>> seem to be messages from the BIOS;
>>>> they have a different format than the subsequent messages from buster
>>>> and they begin with 'ACPI  '.
>>>> As they disappear so fast, I cannot read them.
>>>> Where are these messages logged or what should I do to log these messages?
>>> "journalctl -b" will have the messages from the most recent boot.
>> Thanks for the pointer.
>> These are the messages I was looking for:
>> =========
>> AMD-Vi: Unable to write to IOMMU perf counter.
>> ACPI BIOS Error (bug): Could not resolve [\_SB.PCI0.GPP0.VGA.LCD._BCM.AFN7], AE_NOT_FOUND (201810/psargs-330)
>> ACPI Error: Method parse/execution failed \_SB.PCI0.GPP0.VGA.LCD._BCM, AE_NOT_FOUND (20180810/psparse-516)
>> ACPI Error: Evaluating _BCM failed (20180810/video-370)
>> Failed to start Show Plymouth Boot Screen.
>> ======
>> Do I have a problem with my system?
> No. The ACPI tables in PCs are usually shoddy and produce many warnings
> by the strict parser in the Kernel.
>
> Windows also often experiences the same parse errors, but decides to
> hide them deep in the Event Log.
>
> Both operations system work around the these errors, anticipating the
> bad craftsmanship of the mainboard/system manufacturers.
>
> Unless you have very specific problems which you explicitly can link to
> such errors, I would not worry.
>
> Sometimes a BIOS/Firmware update fixes some errors, but don't get your
> hopes up.
>
> Grüße
> Sven.
>
Thank you. That was helpful.

-- 

K.D.J.

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Buster boot messages Klaus Jantzen <k.d.jantzen@mailbox.org> - 2020-07-10 10:00 +0200
  Re: Buster boot messages Zoltán Herman <zoltanhbz@gmail.com> - 2020-07-10 10:00 +0200
  Re: Buster boot messages Sven Hartge <sven@svenhartge.de> - 2020-07-10 11:50 +0200
    Re: Buster boot messages Klaus Jantzen <k.d.jantzen@mailbox.org> - 2020-07-10 16:00 +0200
      Re: Buster boot messages Sven Hartge <sven@svenhartge.de> - 2020-07-10 16:20 +0200
        Re: Buster boot messages Klaus Jantzen <k.d.jantzen@mailbox.org> - 2020-07-10 19:30 +0200
  Re: Buster boot messages Brian <ad44@cityscape.co.uk> - 2020-07-10 12:00 +0200

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