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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [i915] [SKL] Incomplete list of HDMI connected display resolution detected"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100213#c15">Comment # 15</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [i915] [SKL] Incomplete list of HDMI connected display resolution detected"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100213">bug 100213</a>
from <span class="vcard"><a class="email" href="mailto:ladis@linux-mips.org" title="Ladislav Michl <ladis@linux-mips.org>"> <span class="fn">Ladislav Michl</span></a>
</span></b>
<pre>Retested with 4.16.0 and 4.16.0-next-20180409
Machine has HDMI and VGA connector:
<a href="https://www.exasoft.cz/hp-zbook-17-g3-1rq40es-bcm-cerna-image1-big_ies1790841.jpg">https://www.exasoft.cz/hp-zbook-17-g3-1rq40es-bcm-cerna-image1-big_ies1790841.jpg</a>
$ cat /sys/class/drm/card0/device/graphics/fb0/name
nouveaufb
$ cat /sys/class/drm/card1/device/graphics/fb1/name
inteldrmfb
Plugging monitor into VGA output gives:
$ grep . /sys/class/drm/card*-*/modes
/sys/class/drm/card1-DP-3/modes:1920x1200
/sys/class/drm/card1-DP-3/modes:1600x1200
/sys/class/drm/card1-DP-3/modes:1280x1024
/sys/class/drm/card1-DP-3/modes:1280x1024
/sys/class/drm/card1-DP-3/modes:1152x864
/sys/class/drm/card1-DP-3/modes:1024x768
/sys/class/drm/card1-DP-3/modes:1024x768
/sys/class/drm/card1-DP-3/modes:800x600
/sys/class/drm/card1-DP-3/modes:800x600
/sys/class/drm/card1-DP-3/modes:640x480
/sys/class/drm/card1-DP-3/modes:640x480
/sys/class/drm/card1-DP-3/modes:720x400
/sys/class/drm/card1-eDP-1/modes:1920x1080
/sys/class/drm/card1-eDP-1/modes:1920x1080
Here everything works as expected.
Plugging the same monitor to HDMI output:
$ grep . /sys/class/drm/card*-*/modes
/sys/class/drm/card0-DP-5/modes:1920x1200
/sys/class/drm/card0-DP-5/modes:1600x1200
/sys/class/drm/card0-DP-5/modes:1280x1024
/sys/class/drm/card0-DP-5/modes:1280x1024
/sys/class/drm/card0-DP-5/modes:1152x864
/sys/class/drm/card0-DP-5/modes:1024x768
/sys/class/drm/card0-DP-5/modes:1024x768
/sys/class/drm/card0-DP-5/modes:800x600
/sys/class/drm/card0-DP-5/modes:800x600
/sys/class/drm/card0-DP-5/modes:640x480
/sys/class/drm/card0-DP-5/modes:640x480
/sys/class/drm/card0-DP-5/modes:720x400
/sys/class/drm/card1-eDP-1/modes:1920x1080
/sys/class/drm/card1-eDP-1/modes:1920x1080
Here monitor goes to sleep as there seem to be no clock. Also It seems I hit
this bug:
<a href="https://gitlab.gnome.org/GNOME/mutter/issues/21">https://gitlab.gnome.org/GNOME/mutter/issues/21</a>
I tried to get meaningful debug output, but no luck so far.</pre>
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