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#1 2018-12-06 03:23:12

bluehorizon
Member
Registered: 2018-12-06
Posts: 3

[Solved] Unable to see tty on boot

I recently updated my system after being away for awhile and rebooted it because it included a kernel update. Upon restarting I saw the usual boot output but just before the login prompt displayed my screen went black and I can no longer see anything. Switching to a different tty yields the same result; just a blank black screen. After calming down, I typed my login slowly and X started up normally. So I was able to start a user session and successfully reach X. After starting X if I switch to a different tty I can see the login prompt. If I exit X I can see the prompt and boot information again on tty1.

Does anyone know if it could be my video driver doing this? I am using Nvidia's proprietary driver but have no issues until I rebooted recently and only on the tty. I've tried unsuccessfully to research this problem on my own but all I've found is troubleshooting on not being able to login (which I can).

Last edited by bluehorizon (2018-12-08 02:20:51)

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#2 2018-12-06 08:01:47

seth
Member
Registered: 2012-09-03
Posts: 8,912

Re: [Solved] Unable to see tty on boot

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#3 2018-12-06 08:12:14

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 5,691

Re: [Solved] Unable to see tty on boot

Try enabling KMS by adding nvidia-drm.modeset=1 to your kernel params. If that is insufficient we need more information, you might want to post the output of

sudo journalctl -b

in [ code ] tags

Edit: Darn.

Last edited by V1del (2018-12-06 08:13:40)

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#4 2018-12-07 02:54:56

bluehorizon
Member
Registered: 2018-12-06
Posts: 3

Re: [Solved] Unable to see tty on boot

Thank you both for the assistance. I added the nvidia modules, regenerated my initramfs, and rebooted with the modeset parameter as suggested but still experienced the same behavior.
Here is the output of the last boot from journalctl: http://sprunge.us/plsJar

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#5 2018-12-07 07:12:58

seth
Member
Registered: 2012-09-03
Posts: 8,912

Re: [Solved] Unable to see tty on boot

Dec 06 21:24:45 bluehorizon kernel: i915 0000:00:02.0: enabling device (0000 -> 0003)

Is this an optimus device?

lspci

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#6 2018-12-07 07:52:03

InvisibleRasta
Member
Registered: 2017-04-12
Posts: 38

Re: [Solved] Unable to see tty on boot

I think i have a similar device. Have you tried booting with this kernel parameters:

nouveau.modeset=0 i915.modeset=1 

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#7 2018-12-08 02:20:31

bluehorizon
Member
Registered: 2018-12-06
Posts: 3

Re: [Solved] Unable to see tty on boot

No, this is not an Optimus device. InvisibleRasta's suggestion helped me find a lead as I read up on the i915 kernel module.
Adding the additional i915.modeset=0 parameter in addition to nvidia-drm.modeset=1 at boot resolved the issue.

I believe, and correct me if I am wrong, it was trying to use i915 which was not loaded. It was not loaded is because I have it disabled in my modprobe.d along with a bunch of other on-board hardware. I believe it was related to troubleshooting when I initially got my video card about 6 months ago and read the "Black screen on systems with Intel integrated GPU" section of the NVIDIA/Troubleshooting page that suggests disabling that module. But it is interesting that it just popped up as an issue all of a sudden.

Thank you all for the help.

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#8 Yesterday 17:10:47

InvisibleRasta
Member
Registered: 2017-04-12
Posts: 38

Re: [Solved] Unable to see tty on boot

no worries, try my best in the little i know. glad you got it working.

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