I'm having a problem with "No signal" on the HDMI port connected to my dual-boot Chromebox after a reboot. I have a new Samsung UN65JU6500 4k TV and have read through this forum. I've tried creating an autostart.sh in /storage/.config, which looks like this:
(
#!/bin/sh
xrandr --output HDMI1 --mode 1920x1080 -r 60
) &
However, the Chromebox still won't boot until I actually unplug the HDMI cable, boot, and then manually run "xrandr --output HDMI1 --mode 1920x1080 -r 60" after ssh comes up. In fact, with the HDMI cable disconnected, the Chromebox boots to:
~# xrandr --prop
Screen 0: minimum 8 x 8, current 1024 x 768, maximum 32767 x 32767
DP1 disconnected (normal left inverted right x axis y axis)
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
HDMI1 disconnected (normal left inverted right x axis y axis)
aspect ratio: Automatic
supported: Automatic, 4:3, 16:9
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
HDMI2 disconnected (normal left inverted right x axis y axis)
aspect ratio: Automatic
supported: Automatic, 4:3, 16:9
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
After booting and manually running xrandr output from above, I see:
~ # xrandr --prop
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
DP1 disconnected (normal left inverted right x axis y axis)
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
HDMI1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 1872mm x 1053mm
EDID:
00ffffffffffff004c2d440c01000001
2a180103808e50780a23ada4544d9926
0f474abdef80714f81c0810081809500
a9c0b300010104740030f2705a80b058
8a00501d7400001e023a801871382d40
582c4500501d7400001e000000fd0018
4b0f511e000a202020202020000000fc
0053414d53554e470a202020202001ab
020342f1535f101f041305142021225d
5e62636407160312290907071507503d
04c083010000e2000f6e030c001000b8
3c21108001020304e3060501e50e6061
6566011d80d0721c1620102c2580501d
7400009e662156aa51001e30468f3300
501d7400001e00000000000000000000
000000000000000000000000000000b3
aspect ratio: Automatic
supported: Automatic, 4:3, 16:9
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
3840x2160 30.00 + 25.00 24.00 29.97 23.98
4096x2160 24.00 23.98
1920x1080 60.00* 50.00 59.94 30.00 25.00 24.00 29.97 23.98
1920x1080i 60.00 50.00 59.94
1680x1050 59.88
1600x900 59.98
1280x1024 75.02 60.02
1440x900 59.90
1366x768 59.79
1280x800 59.91
1152x864 75.00
1280x720 59.97 60.00 50.00 59.94
1024x768 75.08 70.07 60.00
832x624 74.55
800x600 72.19 75.00 60.32
720x576 50.00
720x576i 50.00
720x480 60.00 59.94
720x480i 60.00 59.94
640x480 75.00 72.81 66.67 60.00 59.94
720x400 70.08
HDMI2 disconnected (normal left inverted right x axis y axis)
aspect ratio: Automatic
supported: Automatic, 4:3, 16:9
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
Any idea on what could be going on? Please let me know if there's any other info I can provide that might help. I've also tried putting HDMI1 in PC and UHD color as suggested earlier in this thread. I'm on the latest Firmware on my Samsung TV. Thanks.