Sway outputs grey when toggling secondary monitor (*not* a 1.10 regression)

[mm1ke]

• Sway Version:

  • sway version 1.10

• Debug Log:

  • sway-debug-2024-11-10.log

• Configuration File: These are the settings in the configuration file specific for the monitors:

  ### Output configuration
  output DP-1 render_bit_depth 10 pos 0 0 mode 3840x2160@143.999Hz bg $swaywalls/wallpaper-main fill
  output DP-2 pos 3840 -1250 transform 90 mode 3840x2160@144.004Hz bg $swaywalls/wallpaper-right fill

  Details about the monitors: swaymsg -t get_outputs (i've removed most of the modes)

  
  Output DP-1 'Acer Technologies X32 FP 1246006353G00'
  Current mode: 3840x2160 @ 143.999 Hz
  Power: on
  Position: 0,0
  Scale factor: 1.000000
  Scale filter: nearest
  Subpixel hinting: unknown
  Transform: normal
  Workspace: 1
  Max render time: off
  Adaptive sync: disabled
  Available modes:
  3840x2160 @ 120.000 Hz
  3840x2160 @ 60.000 Hz
  3840x2160 @ 159.750 Hz
  3840x2160 @ 143.999 Hz
  3840x2160 @ 120.000 Hz (16:9)
  3840x2160 @ 119.880 Hz (16:9)
  3840x2160 @ 60.000 Hz (16:9)
  3840x2160 @ 59.940 Hz (16:9)

Output DP-2 'Acer Technologies XB283K KV 120918FA54200' (focused) Current mode: 3840x2160 @ 144.004 Hz Power: on Position: 3840,-1250 Scale factor: 1.000000 Scale filter: nearest Subpixel hinting: unknown Transform: 90 Workspace: 2 Max render time: off Adaptive sync: disabled Available modes: 3840x2160 @ 59.997 Hz 3840x2160 @ 144.004 Hz 3840x2160 @ 120.000 Hz (16:9) 3840x2160 @ 119.880 Hz (16:9) 3840x2160 @ 119.910 Hz 3840x2160 @ 60.000 Hz (16:9) 3840x2160 @ 59.940 Hz (16:9) 2560x1440 @ 143.912 Hz

- **Description:**
The issue is pretty simple to explain.
Most of the time when i'm disabling my secondary right monitor (`DP-2 / Acer Technologies XB283K KV`) via hotkey `bindsym $mod+Shift+F12 output DP-2 toggle` sway does turn off the monitor but also shows a completely greyed output on the main monitor (`DP-1`). In that case i cannot to anything and it even looks like sway crashed.
However, sway still runs and i've found a workaround to get the desktop back. I just need to switch to another VT and back (via `CTRL-ALT-F5` for example) and i have my desktop again.
Afterwards i also can add (toggle) my secondary monitor again without problems.
Also, it doesn't happen all the time. (but lets say 90%). After a clean start of sway i can fairly simple reproduce it, but sometimes it works without this issue, but i didn't found a clue what could be different when it works..

Please note, this is **NOT** a regression to 1.9. This issue already happend with 1.9. I just wanted to wait for the final 1.10 release to see if 1.10 might fix this. Also, as far as i can remember i always had that issue.

I've added a debug log file were i've only logged in and turned off (got grey screen), switched VT and turned on the monitor again.

[Lunitur]

I also got similar bug since updating to 1.10. Before when connecting DP-1 it would automatically set up both workspaces, now it glitches out and secondary monitor shows mirror image of primary screen.

[emersion]

@Lunitur, this issue is specifically marked as not being a 1.10 regression.

[sentientmachin3]

I'm having the same issue, everything looks fine until i disable the laptop output.

I downgraded to sway 1.9 (using downgrade), and monitor setup is working again (in my case at least), but the symptoms are the same @mm1ke described.

[dR3b]

I also have this bug.

[emersion]

@sentientmachin3, your issue is unrelated.

@dR3b, please use the thumbs-up button instead if you're hitting the same issue.