On Fri, 25 Sep 2020 11:52:41 +0200
Petr Tesarik [off-list ref] wrote:

On Fri, 25 Sep 2020 11:44:09 +0200
Heiner Kallweit [off-list ref] wrote:

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On 25.09.2020 10:54, Petr Tesarik wrote:  

[...]

quoted

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Does it make sense to bisect the change that broke the driver for me, or should I rather dispose of this waste^Wlaptop in an environmentally friendly manner? I mean, would you eventually accept a workaround for a few machines with a broken BIOS?
    

If the workaround is small and there's little chance to break other stuff: then usually yes.
If you can spend the effort to bisect the issue, this would be appreciated.  

OK, then I'm going to give it a try.

Done. The system freezes when this commit is applied:

commit 9f0b54cd167219266bd3864570ae8f4987b57520
Author: Heiner Kallweit [off-list ref]
Date:   Wed Jun 17 22:55:40 2020 +0200

    r8169: move switching optional clock on/off to pll power functions
    
    Relevant chip clocks are disabled in rtl_pll_power_down(), therefore
    move calling clk_disable_unprepare() there. Similar for enabling the
    clock.
    
    Signed-off-by: Heiner Kallweit [off-list ref]
    Signed-off-by: David S. Miller [off-list ref]

I cannot be sure this is related to the malfunction after resume reported earlier, but it again touches the suspend/resume path...

Anything else I should try?

Petr T