Headless output no longer working

[System64fumo]

Already reported ? *

• [X] I have searched the existing open and closed issues.

Regression?

Yes

System Info and Version

System/Version info

```sh Hyprland, built from branch main at commit ca85455a8ed5dbe920a47c1a48de1dd993446481 (misc: Rename all instances of emtpy to empty (7522)). Date: Mon Aug 26 13:25:52 2024 Tag: v0.42.0-70-gca85455a, commits: 5139 flags: (if any) System Information: System name: Linux Node name: frostboard Release: 6.11.0-rc1-baka+ Version: #19 SMP PREEMPT Wed Sep 4 19:46:33 IDT 2024 GPU information: os-release: NAME="Artix Linux" PRETTY_NAME="Artix Linux" ID=artix BUILD_ID=rolling ANSI_COLOR="0;36" HOME_URL="https://www.artixlinux.org/" DOCUMENTATION_URL="https://wiki.artixlinux.org/" SUPPORT_URL="https://forum.artixlinux.org/" BUG_REPORT_URL="https://bugs.artixlinux.org/" PRIVACY_POLICY_URL="https://terms.artixlinux.org/docs/privacy-policy/" LOGO=artixlinux-logo plugins: ```

Description

Headless outputs do not output anything to vnc (wayvnc) Works fine for regular outputs however..

How to reproduce

1: Run wayvnc on your server 2: Connect to it with wlvncc or an alternative vnc client 3: Observe it working just fine

4: Create a headless output in hyprland 5: Restart wayvnc server but this time set the output to the headless one 6: Connect to the server again 7: Observe it failing

Crash reports, logs, images, videos

As stated above, Works fine for regular non headless outputs. This used to work before, iirc prior to the AQ changes.

Thank you vaxry for breaking hyprland once more

[fxzxmicah]

I checked for two hours before realizing that it no longer uses wlroots. Although he said so https://github.com/hyprwm/Hyprland/discussions/7634, I don't have confidence in it now.

At present, it is not possible to use it in headless mode or in containers.

[vaxerski]

can someone post a log

[System64fumo]

@vaxerski hyprland.log

TLDR this is spammed over and over again: [ERR] Failed to acquire swapchain buffer for HEADLESS-2 [ERR] renderer: couldn't beginRender()!

On an unrelated note.. Why do headless outputs start at HEADLESS-2 and not HEADLESS-1?

[fxzxmicah]

I have a different log:

[LOG] [AQ] Creating an Aquamarine backend!
[LOG] [AQ] [libseat] [libseat/backend/seatd.c:64] Could not connect to socket /run/seatd.sock: No such file or directory
[LOG] [AQ] [libseat] [libseat/libseat.c:76] Backend 'seatd' failed to open seat, skipping
[LOG] [AQ] [libseat] [libseat/libseat.c:76] Backend 'logind' failed to open seat, skipping
[ERR] [AQ] [libseat] [libseat/libseat.c:79] No backend was able to open a seat
[ERR] [AQ] libseat: failed to open a seat
[ERR] [AQ] Failed to open a session
[ERR] [AQ] DRM Backend failed
[LOG] [AQ] Starting the Aquamarine backend!
[LOG] [AQ] Starting the Wayland backend!
[ERR] [AQ] Wayland backend cannot start: wl_display_connect failed (is a wayland compositor running?)
[ERR] [AQ] Requested backend (wayland) could not start, enabling fallbacks
[ERR] [AQ] Implementation wayland failed, erasing.
[CRITICAL] m_pAqBackend couldn't start! This usually means aquamarine could not find a GPU or encountered some issues. Make sure you're running either on a tty or on a Wayland session, NOT an X11 one.
[CRITICAL] Critical error thrown: CBackend::create() failed!

This system (nspawn container) worked properly prior to the update with WLR_BACKENDS=headless.

[System64fumo]

Wait are you trying to run hyprland without a monitor? I'm just creating a headless output for vnc

Hyprland is known to not work in fully headless mode that is a known issue

[fxzxmicah]

In the past, it worked.

[System64fumo]

Interesting.. But regardless this is a different issue.

[fxzxmicah]

Before you posted the log, I thought it was the same. Now it seems that they are indeed different issues within the same category.

Also, there's no monitor but there's a GPU, so it shouldn't stop working.