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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Monitor not turning on after DisplayPort re-plug in Xorg"
href="https://bugs.freedesktop.org/show_bug.cgi?id=46711#c22">Comment # 22</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Monitor not turning on after DisplayPort re-plug in Xorg"
href="https://bugs.freedesktop.org/show_bug.cgi?id=46711">bug 46711</a>
from <span class="vcard"><a class="email" href="mailto:marcus.hewat@gmail.com" title="Marcus <marcus.hewat@gmail.com>"> <span class="fn">Marcus</span></a>
</span></b>
<pre>I have the problem each time I turn off my monitor and then later turn it back
on. The desktop does not come back.
(In reply to Wolfgang Rupprecht from <a href="show_bug.cgi?id=46711#c4">comment #4</a>)
<span class="quote">> xset dpms force off
> sleep 1
> xset dpms force on</span >
This also gets the display back for me.
The monitor is a Samsung U24E850 (24 inch, 3840x2160)
The OS is Ubuntu 15.04 with 4.1.1 kernel installed and olibaf xork packages.
here is the relevant package information:
linux-image-4.1.1-040101-generic 4.1.1-040101.201506291635
xserver-xorg-video-radeon
1:7.5.99+git1507100730.b6d871~gd~v
xserver-xorg-core 2:1.17.1-0ubuntu3
# xrandr
Screen 0: minimum 320 x 200, current 3840 x 2160, maximum 16384 x 16384
DisplayPort-0 connected primary 3840x2160+0+0 (normal left inverted right x
axis y axis) 521mm x 293mm
3840x2160 60.0*+
2560x1440 60.0
1920x1080 60.0 59.9
1680x1050 60.0
1600x900 59.9
1280x1024 60.0
1440x900 59.9
1280x800 59.8
1280x720 59.9
1024x768 60.0
800x600 60.3 56.2
640x480 60.0 59.9
HDMI-0 disconnected (normal left inverted right x axis y axis)
DVI-0 disconnected (normal left inverted right x axis y axis)
DVI-1 disconnected (normal left inverted right x axis y axis)</pre>
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