No display output after boot

[macmanluke]

Hello all

 

Just upgraded my Unraid server from a B365M board + 9400 to z590 + 10400 (needed more expansion and made sense to update platform at the same time)

All changed over pretty smoothly but iv got an issue when i boot i get display output right through the boot process to the point it would normally drop you at the login terminal but instead display just switches off.

Using the iGPU, had i915 blacklisted but removed that with no change
Not a big deal just seems strange and cant think of what might be causing it.

 

any suggestions?

 

thanks

[SimonF]

2 minutes ago, macmanluke said:

any suggestions?

blacklist again. but load intel gpu top.

[macmanluke]

how would i do that?

edit: never mind the plugin intel top, ill give it a go

Edited December 28, 2021 by macmanluke

[SimonF]

Search community apps for intel gpu top and install.

 

echo "blacklist i915" > /boot/config/modprobe.d/i915.conf

[macmanluke]

Got that installed, no change but not rebooted yet

but i noticed its reporting "intel-gpu-top: Intel Cometlake (Gen9) @ /dev/dri/card0"

Does 10th gen report as 9th gen? or is something broken having come from 9th gen?

[SimonF]

You will need to reboot for the i915 module to be loaded correctly.

[macmanluke]

rebooted, still no output and still reporting as 9th gen with intel_top_gpu

 

[SimonF]

do you see the cursor in top left corner?

 

Try this but shouldnt need if using intel gpu top.  Which vers are you running and is i915 blacklisted ?

 

You can also try to:

Press CTRL+ALT+F1 this should bring you back to the command line

Log in with your root user and password

Then type in 'modprobe i915' (without quotes)

Then type in '/etc/rc.d/rc.4' (without quotes)

[macmanluke]

Nah no video signal at all once booted
 

6.9.2 and yea i915 is blacklisted

only wanting command line too, not trying to get a GUI loaded.

Just strange haha

 

[Squid]

Try a different output (if possible) from the motherboard.

[SimonF]

Yeah strange. Guessing is not just gone into screen save mode? Anything in the logs?

[macmanluke]

Ill give DP a go, been trying HDMI - Previous board i was using VGA haha

[n1k0]

Hello, 

 

 

i have the same problem with a I3-10100

 

Jan  2 14:03:16 Tower kernel: CPU: 7 PID: 4341 Comm: modprobe Tainted: G     U     O      5.10.28-Unraid #1
Jan  2 14:03:16 Tower kernel: Call Trace:
Jan  2 14:03:16 Tower kernel: i915 0000:00:02.0: [drm] *ERROR* crtc 51: Can't calculate constants, dotclock = 0!
Jan  2 14:03:16 Tower kernel: CPU: 7 PID: 4341 Comm: modprobe Tainted: G     U  W  O      5.10.28-Unraid #1
Jan  2 14:03:16 Tower kernel: Call Trace:
Jan  2 14:03:16 Tower kernel: CPU: 1 PID: 4341 Comm: modprobe Tainted: G     U  W  O      5.10.28-Unraid #1
Jan  2 14:03:16 Tower kernel: Call Trace:
Jan  2 14:03:16 Tower kernel: CPU: 1 PID: 4341 Comm: modprobe Tainted: G     U  W  O      5.10.28-Unraid #1
Jan  2 14:03:16 Tower kernel: Call Trace:

 

[macmanluke]

guess you have no solution either?

tried everything i can think of and no luck

but its definitely working as i can use gvt-g and plex transcoding fine, just no output