linux-kernel - Suspend broken on Thinkpad x201s since 4.7-rc1

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Message-ID: <20160602102443.GA21132@jannic.reliablesolutions.de>
Date:	Thu, 2 Jun 2016 12:24:44 +0200
From:	Jan Niehusmann <jan@...dor.com>
To:	Omer Peleg <omer@...technion.ac.il>
Cc:	linux-kernel@...r.kernel.org,
	Adam Morrison <mad@...technion.ac.il>,
	Shaohua Li <shli@...com>, Ben Serebrin <serebrin@...gle.com>,
	David Woodhouse <David.Woodhouse@...el.com>
Subject: Suspend broken on Thinkpad x201s since 4.7-rc1

Hi,

when trying out 4.7-rc1 on my Thinkpad x201s, I noticed that suspending
the system doesn't work any more. Instead, when trying to suspend,
the system hangs with a black screen and the suspend-LED blinking.

I bisected the issue to commit 22e2f9fa63b092923873fc8a52955151f4d83274,
and indeed, reverting this commit from 4.7-rc1 fixes the issue.

As the system just hangs on suspend, I don't have any error message to
quote. But if there is something I could try to get some diagnostics,
please let me know.

Jan