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: Sat, 09 Dec 2017 18:39:38 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0929954110==" 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 4B5FF6E012 for ; Sat, 9 Dec 2017 18:39:38 +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 --===============0929954110== Content-Type: multipart/alternative; boundary="15128447782.426b86A8.8289"; charset="UTF-8" --15128447782.426b86A8.8289 Date: Sat, 9 Dec 2017 18:39:38 +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 #17 from lazanet96@gmail.com --- Created attachment 136058 --> https://bugs.freedesktop.org/attachment.cgi?id=3D136058&action=3Dedit Workaround (Ubuntu 17.10 DRM 2.50.0 / 4.13.0-19-generic, LLVM 5.0.0) After testing new version of kernel on Ubuntu 17.10 installation (wayland + systemd) I discovered by chance that after suspend and unsuspend (systemctl suspend), internal monitor starts displaying image and everything works (for the first time with radeon driver). So as a workaround I used /etc/rc.local compatibility to trigger suspend af= ter appropriate ring level is initialized during boot(sudo chmod +x /etc/rc.loc= al is also required).=20 I tested same method with 14.04 LTS with no success (so I don't know exactly what upgrade made it work). --=20 You are receiving this mail because: You are the assignee for the bug.= --15128447782.426b86A8.8289 Date: Sat, 9 Dec 2017 18:39:38 +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 # 17 on bug 99784<= /a> from lazanet96@gm= ail.com 
Created attachment 136058 [details]
Workaround (Ubuntu 17.10 DRM 2.50.0 / 4.13.0-19-generic, LLVM 5.0.0)

After testing new version of kernel on Ubuntu 17.10 installation (wayland +
systemd) I discovered by chance that after suspend and unsuspend (systemctl
suspend), internal monitor starts displaying image and everything works (for
the first time with radeon driver).

So as a workaround I used /etc/rc.local compatibility to trigger suspend af=
ter
appropriate ring level is initialized during boot(sudo chmod +x /etc/rc.loc=
al
is also required).=20

I tested same method with 14.04 LTS with no success (so I don't know exactly
what upgrade made it work).

You are receiving this mail because:
  • You are the assignee for the bug.
= --15128447782.426b86A8.8289-- --===============0929954110== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVs IG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg== --===============0929954110==--