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snowblind

Member

Registered: 2013-07-18

Posts: 39

Haswell-ULT HDMI not being detected?

My laptop's HDMI port has pretty much always worked for displaying to an external monitor, yet today I come into the office, plug it in... and I get nothing.

Not only is it not displaying to the external monitor through HDMI, Xrandr isn't reporting the HDMI device at all (not even saying that it exists but is disconnected):

$ xrandr
Screen 0: minimum 320 x 200, current 1366 x 768, maximum 32767 x 32767
eDP1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 256mm x 144mm
   1366x768       60.0*+
   1024x768       60.0  
   800x600        60.3     56.2  
   640x480        59.9  
VIRTUAL1 disconnected (normal left inverted right x axis y axis)

Oddly, I'm seeing references to HDMI *audio*, but I'm not sure if that is related at all (or if it's handled by a different driver):

$ grep -i hdmi /var/log/Xorg.0.log
[   347.760] (II) config/udev: Adding input device HDA Intel HDMI HDMI/DP,pcm=3 (/dev/input/event18)
[   347.760] (II) config/udev: Adding input device HDA Intel HDMI HDMI/DP,pcm=7 (/dev/input/event17)
[   347.760] (II) config/udev: Adding input device HDA Intel HDMI HDMI/DP,pcm=8 (/dev/input/event16)

At the outputs:

$ grep -i output /var/log/Xorg.0.log
[   347.131] (II) intel(0): Output eDP1 has no monitor section
[   347.131] (II) intel(0): Output VIRTUAL1 using monitor section VIRTUAL1
[   347.131] (--) intel(0): Output eDP1 using initial mode 1366x768 on pipe 0

$ lspci | grep -i vga
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09)

Is anyone familiar with this issue, or perhaps know the best way to resolve it? I've tried uninstalling and reinstalling xf86-video-intel (and tried xf86-video-intel-git off the AUR) yet nothing I do can get the HDMI port to show up.

EDIT: Also, some general stats:

$ uname -a
Linux laptop.winter 3.13.6-1-ARCH #1 SMP PREEMPT Fri Mar 7 22:30:23 CET 2014 i686 GNU/Linux

$ pacman -Q | grep video-intel
xf86-video-intel 2.99.910-1

EDIT2: Downgrading xf86-video-intel doesn't seem to work either. I wonder if it's a hardware issue...

Last edited by snowblind (2014-03-17 15:08:07)