Bug#878221: linux-image-4.9.0-4-amd64: Screen flickers randomly with Radeon R9 270X since upgrade from 4.9.0-3 to 4.9.0-4

To: 878221@bugs.debian.org
Subject: Bug#878221: linux-image-4.9.0-4-amd64: Screen flickers randomly with Radeon R9 270X since upgrade from 4.9.0-3 to 4.9.0-4
From: besy@posteo.de
Date: Sat, 27 Jan 2018 03:09:00 +0100
Message-id: <[🔎] a722a4ea-86c4-2c9e-8c78-c15fec65c9d9@posteo.de>
Reply-to: besy@posteo.de, 878221@bugs.debian.org
References: <150771270795.3952.15435434456359540072.reportbug@bitrunner-debian>

I realized that the kernel I suggested as workaround
(linux-image-4.9.0-3-amd64) didn't completely solve the flickering
problem. However, it made the flickering occur very rarely.

I can confirm that the kernel "4.14.0-3-amd64 #1 SMP Debian 4.14.13-1
(2018-01-14)" from stretch-backports causes no
flickering at all with my Dell U2415.

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