From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.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 [thread overview]
Message-ID: <bug-99784-502-bWHWVsU3qw@http.bugs.freedesktop.org/> (raw)
In-Reply-To: <bug-99784-502@http.bugs.freedesktop.org/>
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https://bugs.freedesktop.org/show_bug.cgi?id=99784
--- Comment #14 from Valeriu Balaban <vbalaban@usc.edu> ---
Created attachment 131429
--> https://bugs.freedesktop.org/attachment.cgi?id=131429&action=edit
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 adapter
and the kernel selects it to be primary by default.
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 the
internal monitor (eDP) primary. If I plug again the external one, the internal
monitor turns black and the external becomes active and starts to display it's
content.
If I take a screenshot, I can see what is displayed on both monitors.
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next prev parent reply other threads:[~2017-05-22 2:29 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-99784-502@http.bugs.freedesktop.org/>
2017-02-13 6:34 ` [Bug 99784] AMD 7470m When VGA plugged into laptop, only one monitor working at a time bugzilla-daemon
2017-03-01 13:00 ` bugzilla-daemon
2017-03-31 2:42 ` bugzilla-daemon
2017-03-31 3:01 ` bugzilla-daemon
2017-03-31 3:11 ` bugzilla-daemon
2017-03-31 3:48 ` bugzilla-daemon
2017-04-17 0:00 ` bugzilla-daemon
2017-05-02 2:46 ` bugzilla-daemon
2017-05-15 23:56 ` bugzilla-daemon
2017-05-22 2:29 ` bugzilla-daemon [this message]
2017-05-22 13:57 ` bugzilla-daemon
2017-05-26 20:30 ` bugzilla-daemon
2017-12-09 18:39 ` bugzilla-daemon
2019-11-19 9:23 ` bugzilla-daemon
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