From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 99784] AMD 7470m When VGA plugged into laptop, only one monitor working at a time Date: Mon, 22 May 2017 02:29:59 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0756280609==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [IPv6:2610:10:20:722:a800:ff:fe98:4b55]) by gabe.freedesktop.org (Postfix) with ESMTP id 4B94189C7F for ; Mon, 22 May 2017 02:29:59 +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 --===============0756280609== Content-Type: multipart/alternative; boundary="14954201992.FBaBfeA.6813"; charset="UTF-8" --14954201992.FBaBfeA.6813 Date: Mon, 22 May 2017 02:29:59 +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=3D99784 --- Comment #14 from Valeriu Balaban --- Created attachment 131429 --> https://bugs.freedesktop.org/attachment.cgi?id=3D131429&action=3Dedit Output of xrandr and dmesg I have the same issue on Ubuntu 16.04 LTS with Mate desktop that runs on an iMac 11. The second monitor is connected through a Display Port to VGA adap= ter and the kernel selects it to be primary by default.=20 After a fresh boot, since the second monitor is the primary one it contains= the login screen, however the screen is black. So I have to unplug it to make t= he internal monitor (eDP) primary. If I plug again the external one, the inter= nal monitor turns black and the external becomes active and starts to display i= t's content. If I take a screenshot, I can see what is displayed on both monitors. --=20 You are receiving this mail because: You are the assignee for the bug.= --14954201992.FBaBfeA.6813 Date: Mon, 22 May 2017 02:29:59 +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

Commen= t # 14 on bug 99784<= /a> from Valeriu Balaban 
Created attachment 13=
1429 [details]
Output of xrandr and dmesg

I have the same issue on Ubuntu 16.04 LTS with Mate desktop that runs on an
iMac 11. The second monitor is connected through a Display Port to VGA adap=
ter
and the kernel selects it to be primary by default.=20

After a fresh boot, since the second monitor is the primary one it contains=
 the
login screen, however the screen is black. So I have to unplug it to make t=
he
internal monitor (eDP) primary. If I plug again the external one, the inter=
nal
monitor turns black and the external becomes active and starts to display i=
t's
content.

If I take a screenshot, I can see what is displayed on both monitors.

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