Can't get laptop to connect to Samsung smart TV

docx9184

I have connected my laptop, which has no screen, to my Samsung smart tv via HDMI and i’m getting no signal. When I plug it in to my Sony smart TV and another generic HDTV it works absolutely fine. I encounter the same issues when trying to connect to any of my monitors, however.

I have tried using SSH software to change the output, which is returning the following.

[root@BATOCERA /userdata/system]# export DISPLAY=:0.0 [root@BATOCERA /userdata/system]# batocera-resolution listOutputs Can't open display :0.0 [root@BATOCERA /userdata/system]# xrandr Can't open display :0.0

I have then reset Batocera using SSH via the following, leaving the HDMI cable unplugged,

/etc/init.d/S31emulationstation stop mv /userdata/system /userdata/system.old reboot

then plugging the HDMI cable back in once Batocera has rebooted and set the display output, which shows Batocera in the top left corner of the screen as 640×480 window. Absolutely tiny, but at least I’m getting somewhere, right?

[root@BATOCERA /userdata/system]# export DISPLAY=:0.0 [root@BATOCERA /userdata/system]# batocera-resolution listOutputs HDMI-1-0 [root@BATOCERA /userdata/system]# batocera-resolution setOutput HDMI-1-0 set HDMI-1-0 as primary

And then I hit a brick wall. The following is the output I get when trying to set the resolution (it does this for all the resolutions I have tried), which kills the display I was getting and I’m back to square one.

[root@BATOCERA /userdata/system]# batocera-resolution setMode 3840x2160.59.94 3840x2160.59.94 X connection to :0.0 broken (explicit kill or server shutdown).

The only way I have found to get the display working at all (tiny 640×480 box in top left of TV) is to reset Batocera again and again, trying different resolutions each time.

I am using a known working HDMI cable and a known working HDMI port on the Samsung TV but I don’t know where else to go from here.

Any help or suggestions would be much appreciated :)

docx9184

Managed to get the small output on the TV again, I assumed it was 640×480, however this is the what it is showing me when using SSH

[root@BATOCERA /userdata/system]# export DISPLAY=:0.0

[root@BATOCERA /userdata/system]# xrandr

Screen 0: minimum 320 x 200, current 320 x 200, maximum 16384 x 16384

HDMI-2 disconnected primary (normal left inverted right x axis y axis)

HDMI-1-0 connected (normal left inverted right x axis y axis)

3840x2160 30.00 + 59.94 50.00 29.97 25.00 23.98

4096x2160 59.94 50.00 29.97 25.00 24.00 23.98

1920x1080 60.00 59.94 50.00 29.97 25.00 23.98 60.00 50.04

1680x1050 59.95

1600x900 60.00

1440x900 59.89

1366x768 59.79

1280x1024 75.02 60.02

1280x800 59.81

1280x720 60.00 59.94 50.00

1152x864 75.00

1024x768 75.03 70.07 60.00

800x600 75.00 72.19 60.32

720x576 50.00

720x480 59.94

640x480 75.00 72.81 59.94

[root@BATOCERA /userdata/system]# batocera-resolution setOutput HDMI-1-0

set HDMI-1-0 as primary

[root@BATOCERA /userdata/system]# batocera-resolution currentResolution

3840x2160

https://freeimage.host/i/DFcDs1 to see what the picture looks like on TV.

Atari

docx9184 Screen 0: minimum 320 × 200, current 320 × 200, maximum 16384 × 16384

Why would it say “current 320 × 200” yet still report that it’s using a “currentResolution” of 3840×2160? I think you’ve found a bug, and that you should report it to the Github so that it can get fixed.