linux-kernel - Re: s2idle stopped working with 6.6-rc on Thinkpad T14 G1 (AMD)

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Date:   Mon, 25 Sep 2023 15:45:48 +0200
From:   Thorsten Leemhuis <linux@...mhuis.info>
To:     Mario Limonciello <mario.limonciello@....com>
Cc:     Linux PM <linux-pm@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux kernel regressions list <regressions@...ts.linux.dev>
Subject: Re: s2idle stopped working with 6.6-rc on Thinkpad T14 G1 (AMD)

On 25.09.23 15:25, Mario Limonciello wrote:
> On 9/25/2023 05:55, Thorsten Leemhuis wrote:
>> Hi Mario! Did you by chance hear anything about lock-ups on resume with
>> mainline affecting AMD systems? I'm asking, as s2idle stopped working
>> for me with 6.6-rc on my Thinkpad T14 G1 (AMD). 
> You're the first report I've heard of this.

Thx for taking the time and replying.

> Yeah not too much useful stuff here unfortunately.  Can you check
> /var/lib/systemd/pstore to see if you got a traceback for whatever
> caused the problem?

Sadly nothing there.

>> Dmesg for 6.6-rc3 (with a USB-C dock, but problem happens without it,
>> too):
>> https://www.leemhuis.info/files/misc/dmesg-6.6_rc3
> 
> Being G1, can you try "amdgpu.mcbp=0" on kernel command line?

Just tried it, but didn't help.

Guess it bisection time then...

Thx again for your reply. Ciao, Thorsten