From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 107784] [AMD tahiti XT] displayport broken Date: Sun, 09 Sep 2018 05:57:08 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0413036787==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 4A2B16E20B for ; Sun, 9 Sep 2018 05:57:08 +0000 (UTC) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0413036787== Content-Type: multipart/alternative; boundary="15364726280.1cc9DADc2.18495" Content-Transfer-Encoding: 7bit --15364726280.1cc9DADc2.18495 Date: Sun, 9 Sep 2018 05:57:08 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D107784 --- Comment #21 from Dmitrii Tcvetkov --- (In reply to Sylvain BERTRAND from comment #20) > Roughly, if you have a cpu with a frequency above 4.2GHz (max unsigned > 32bits), > linux time subsystem gets broken leading to the timeouts in displayport > programming. Ofc, my cpu runs at 4.7GHz. I hit the bug on AMD FX-9590 machine with RX 580 and 2 displayport monitors= . As for you bisect wasn't successful for me and led me to network merge commit.= =20 Looks like you're right! If I downclock the CPU to 4.2 GHz then current mainline master (f8f65382c98a28e3c2b20) boots fine. --=20 You are receiving this mail because: You are the assignee for the bug.= --15364726280.1cc9DADc2.18495 Date: Sun, 9 Sep 2018 05:57:08 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated

Comme= nt # 21 on bug 10778= 4 from Dmitrii Tcvetkov 
(In reply to Sylvain BERTRAND from comment #20)
> Roughly, if you have a cpu with a frequency abov=
e 4.2GHz (max unsigned
> 32bits),
> linux time subsystem gets broken leading to the timeouts in displayport
> programming. Ofc, my cpu runs at 4.7GHz.

I hit the bug on AMD FX-9590 machine with RX 580 and 2 displayport monitors=
. As
for you bisect wasn't successful for me and led me to network merge commit.=
=20

Looks like you're right! If I downclock the CPU to 4.2 GHz then current
mainline master (f8f65382c98a28e3c2b20) boots fine.

You are receiving this mail because:
  • You are the assignee for the bug.
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