OBS doesn't start any longer since latest update

[AaronD]

So...I gather that OBS (and perhaps Linux in general) is no longer compatible with older NVIDIA hardware? Previous versions could encode video on my GK104GLM [Quadro K5100M], but OBS v28 on Ubuntu 22.04 LTS can't?

390 recognizes the card by the correct name, and used to work.
418 crashes. Don't use.
X.Org -- Nouveau calls it "NVE4" in the System Settings -> About page, and OBS still can't use it. CPU encoding only.

Is there a reason to remove the (admittedly ancient, but WORKING) support for the 390 driver?

Au revoir, GLX by GeorgesStavracas · Pull Request #6475 · obsproject/obs-studio

Description Drop all GLX-specific code, and rely only on EGL. Motivation and Context GLX is legacy, and has various quirks and complications that make supporting it a chore. Furthermore, GLX doesn&...

github.com

Was it really that much a a pain to maintain? Could it be left in as-is, with no more bug-fixes, as a mostly-dormant module that is only used for older platforms? Maybe an installable patch for those that need it?
This hardware still feels way more than capable; it seems a waste to effectively brick it.

And would it also have a connection to this issue?:

Solved! Window Capture is always blank

OBS 28.1.2, installed via PPA Ubuntu Studio 22.04.1 LTS Window Capture (Xcomposite) appears to try - it has a correct list of all the window titles - but it still doesn't actually show anything for any of them. See screenshot. Window Capture (PipeWire) doesn't even have that. Its Properties...

obsproject.com

 

[AaronD]

hi guys
make a .sh using this !

#!/bin/sh
LIBGL_ALWAYS_SOFTWARE=1 obs

or just run "LIBGL_ALWAYS_SOFTWARE=1 obs" on terminal $

Tried that. No different.

The relevant part of the log, I think, is:

info: ---------------------------------
info: [FFmpeg NVENC encoder: 'advanced_video_stream'] settings:
        encoder:      NVIDIA NVENC H.264 (FFmpeg)
        rate_control: CBR
        bitrate:      4500
        cqp:          0
        keyint:       60
        preset:       p6
        tuning:       hq
        multipass:    qres
        profile:      high
        width:        1920
        height:       1080
        b-frames:     2
        psycho-aq:    1
        GPU:          0

[h264_nvenc @ 0x56167f9c38c0] Driver does not support the required nvenc API version. Required: 11.1 Found: 8.1
[h264_nvenc @ 0x56167f9c38c0] The minimum required Nvidia driver for nvenc is (unknown) or newer
warning: [NVENC encoder] nvenc_create_internal failed, trying again without Psycho Visual Tuning
info: ---------------------------------
info: [FFmpeg NVENC encoder: 'advanced_video_stream'] settings:
        encoder:      NVIDIA NVENC H.264 (FFmpeg)
        rate_control: CBR
        bitrate:      4500
        cqp:          0
        keyint:       60
        preset:       p6
        tuning:       hq
        multipass:    qres
        profile:      high
        width:        1920
        height:       1080
        b-frames:     2
        psycho-aq:    0
        GPU:          0

[h264_nvenc @ 0x56167f9c38c0] Driver does not support the required nvenc API version. Required: 11.1 Found: 8.1
[h264_nvenc @ 0x56167f9c38c0] The minimum required Nvidia driver for nvenc is (unknown) or newer

Everything else looks normal to me.

As for EGL and GLX, my System Settings manager has this to say, while using the 390 driver:

Sorry to not paste the text. It's not selectable.

 

[Tuna]

[h264_nvenc @ 0x56167f9c38c0] Driver does not support the required nvenc API version. Required: 11.1 Found: 8.1

That is from FFMPEG as it speaks with the hardware and not OBS.