Virtual display does not match client resolution

[Akikazehub]

Hello,

I encountered an issue where Apollo fails to set the correct resolution for my client's requested display size.

My client device uses a screen resolution of 1200x2670. When I start a streaming session, Apollo creates a virtual monitor, but the resolution is not set to the requested size. Instead, it falls back to 1200x1080.

Expected behavior: Apollo should create the virtual monitor at the resolution requested by the client (1200x2670).

Actual behavior: Apollo creates the virtual monitor at 1200x1080.

This leads to black borders and unnecessary scaling on the client side.

I'm attaching the full log file for your reference:

[2025-06-12 20:00:49.809]: Info: Apollo version: v0.3.7-hotfix.1
[2025-06-12 20:00:49.809]: Info: Package Publisher: SudoMaker
[2025-06-12 20:00:49.809]: Info: Publisher Website: https://www.sudomaker.com
[2025-06-12 20:00:49.809]: Info: Get support: https://github.com/ClassicOldSong/Apollo/issues
[2025-06-12 20:00:49.809]: Info: config: 'qsv_preset' = slow
[2025-06-12 20:00:49.809]: Info: config: 'fps' = [10,30,60]
[2025-06-12 20:00:49.809]: Info: config: 'wan_encryption_mode' = 2
[2025-06-12 20:00:49.809]: Info: config: 'enable_input_only_mode' = enabled
[2025-06-12 20:00:49.809]: Info: config: 'amd_rc' = cqp
[2025-06-12 20:00:49.809]: Info: config: 'av1_mode' = 0
[2025-06-12 20:00:49.809]: Info: config: 'sunshine_name' = HOME
[2025-06-12 20:00:49.809]: Info: config: 'channels' = 3
[2025-06-12 20:00:49.809]: Info: config: 'nv_rc' = constqp
[2025-06-12 20:00:49.809]: Info: config: 'min_fps_factor' = 2
[2025-06-12 20:00:49.809]: Info: config: 'gamepad' = x360
[2025-06-12 20:00:49.810]: Info: config: 'nvenc_spatial_aq' = enabled
[2025-06-12 20:00:49.810]: Info: config: 'qp' = 30
[2025-06-12 20:00:49.810]: Info: config: 'fec_percentage' = 5
[2025-06-12 20:00:49.810]: Info: config: 'resolutions' = [
    352x240,
    480x360,
    858x480,
    1280x720,
    1920x1080,
    2560x1080,
    3440x1440,
    1920x1200,
    3860x2160,
    3840x1600,
    2670x1200,
    3840x2160,
    2560x1440,
    1200x2670,
    2160x3840,
    1440x2560,
    1080x1920
]
[2025-06-12 20:00:49.810]: Info: config: 'locale' = en
[2025-06-12 20:00:49.810]: Info: Provided workaround settings for SettingsManager:
{
  "hdr_blank_delay": null
}
[2025-06-12 20:00:49.814]: Info: Currently available display devices:
[
  {
    "device_id": "{8bda74df-5f00-50bb-b27b-f3b21c248099}",
    "display_name": "\\\\.\\DISPLAY1",
    "edid": {
      "manufacturer_id": "AOC",
      "product_code": "0CCD",
      "serial_number": 0
    },
    "friendly_name": "28E850",
    "info": {
      "hdr_state": null,
      "origin_point": {
        "x": 0,
        "y": 0
      },
      "primary": true,
      "refresh_rate": {
        "type": "rational",
        "value": {
          "denominator": 1,
          "numerator": 60
        }
      },
      "resolution": {
        "height": 2670,
        "width": 1200
      },
      "resolution_scale": {
        "type": "rational",
        "value": {
          "denominator": 100,
          "numerator": 100
        }
      }
    }
  }
]
[2025-06-12 20:00:49.983]: Info: nvprefs: Opened undo file from previous improper termination
[2025-06-12 20:00:49.983]: Info: nvprefs: Restored OGL_CPL_PREFER_DXPRESENT for base profile
[2025-06-12 20:00:49.995]: Error: nvprefs: NvAPI error: NVAPI_ERROR
[2025-06-12 20:00:49.995]: Error: nvprefs: NvAPI_DRS_SaveSettings() failed
[2025-06-12 20:00:49.995]: Error: nvprefs: Failed to restore global profile settings from undo file, deleting the file anyway
[2025-06-12 20:00:49.997]: Info: nvprefs: No need to modify application profile settings
[2025-06-12 20:00:49.997]: Info: nvprefs: Changed OGL_CPL_PREFER_DXPRESENT to OGL_CPL_PREFER_DXPRESENT_PREFER_ENABLED for base profile
[2025-06-12 20:00:50.014]: Error: nvprefs: NvAPI error: NVAPI_ERROR
[2025-06-12 20:00:50.014]: Error: nvprefs: NvAPI_DRS_SaveSettings() failed
[2025-06-12 20:00:50.014]: Error: nvprefs: Couldn't save global profile settings
[2025-06-12 20:00:50.031]: Info: Compiling shaders...
[2025-06-12 20:00:50.049]: Info: System tray created
[2025-06-12 20:00:50.115]: Info: Compiled shaders
[2025-06-12 20:00:50.127]: Info: // Testing for available encoders, this may generate errors. You can safely ignore those errors. //
[2025-06-12 20:00:50.127]: Info: Trying encoder [nvenc]
[2025-06-12 20:00:50.665]: Info: 
Device Description : NVIDIA GeForce RTX 2080 Ti
Device Vendor ID   : 0x000010DE
Device Device ID   : 0x00001E07
Device Video Mem   : 22230 MiB
Device Sys Mem     : 0 MiB
Share Sys Mem      : 32728 MiB
Feature Level      : 0x0000B100
Capture size       : 1200x2670
Offset             : 0x0
Virtual Desktop    : 1200x2670
[2025-06-12 20:00:50.665]: Info: Active GPU has HAGS disabled
[2025-06-12 20:00:50.665]: Info: Using realtime GPU priority
[2025-06-12 20:00:50.665]: Info: 
Colorspace         : DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709
Bits Per Color     : 8
Red Primary        : [0.679688,0.30957]
Green Primary      : [0.206055,0.693359]
Blue Primary       : [0.151367,0.0546875]
White Point        : [0.313477,0.329102]
Min Luminance      : 0.5 nits
Max Luminance      : 270 nits
Max Full Luminance : 270 nits
[2025-06-12 20:00:50.666]: Info: Desktop resolution [1200x2670]
[2025-06-12 20:00:50.666]: Info: Desktop format [DXGI_FORMAT_B8G8R8A8_UNORM]
[2025-06-12 20:00:50.666]: Info: Display refresh rate [60Hz]
[2025-06-12 20:00:50.666]: Info: Requested frame rate [60fps]
[2025-06-12 20:00:50.666]: Info: Client dynamicRange: 0, Display is HDR: false
[2025-06-12 20:00:50.666]: Info: Creating encoder [h264_nvenc]
[2025-06-12 20:00:50.666]: Info: Color coding: SDR (Rec. 601)
[2025-06-12 20:00:50.666]: Info: Color depth: 8-bit
[2025-06-12 20:00:50.666]: Info: Color range: JPEG
[2025-06-12 20:00:51.107]: Info: NvEnc: created encoder H.264 P1 async two-pass rfi spatial-aq
[2025-06-12 20:00:51.137]: Info: Client dynamicRange: 0, Display is HDR: false
[2025-06-12 20:00:51.137]: Info: Creating encoder [hevc_nvenc]
[2025-06-12 20:00:51.137]: Info: Color coding: SDR (Rec. 601)
[2025-06-12 20:00:51.137]: Info: Color depth: 8-bit
[2025-06-12 20:00:51.137]: Info: Color range: JPEG
[2025-06-12 20:00:51.548]: Info: NvEnc: created encoder HEVC P1 async two-pass rfi spatial-aq
[2025-06-12 20:00:51.574]: Info: Client dynamicRange: 0, Display is HDR: false
[2025-06-12 20:00:51.574]: Info: Creating encoder [av1_nvenc]
[2025-06-12 20:00:51.574]: Info: Color coding: SDR (Rec. 601)
[2025-06-12 20:00:51.574]: Info: Color depth: 8-bit
[2025-06-12 20:00:51.574]: Info: Color range: JPEG
[2025-06-12 20:00:51.754]: Error: NvEnc: encoding format is not supported by the gpu
[2025-06-12 20:00:51.754]: Error: NvEnc: NvEncUnregisterAsyncEvent() failed: NV_ENC_ERR_DEVICE_NOT_EXIST
[2025-06-12 20:00:51.761]: Info: Client dynamicRange: 0, Display is HDR: false
[2025-06-12 20:00:51.762]: Info: Creating encoder [h264_nvenc]
[2025-06-12 20:00:51.762]: Info: Color coding: SDR (Rec. 601)
[2025-06-12 20:00:51.762]: Info: Color depth: 8-bit
[2025-06-12 20:00:51.762]: Info: Color range: JPEG
[2025-06-12 20:00:52.170]: Info: NvEnc: created encoder H.264 P1 async yuv444 two-pass rfi spatial-aq
[2025-06-12 20:00:52.651]: Info: 
Device Description : NVIDIA GeForce RTX 2080 Ti
Device Vendor ID   : 0x000010DE
Device Device ID   : 0x00001E07
Device Video Mem   : 22230 MiB
Device Sys Mem     : 0 MiB
Share Sys Mem      : 32728 MiB
Feature Level      : 0x0000B100
Capture size       : 1200x2670
Offset             : 0x0
Virtual Desktop    : 1200x2670
[2025-06-12 20:00:52.651]: Info: Active GPU has HAGS disabled
[2025-06-12 20:00:52.651]: Info: Using realtime GPU priority
[2025-06-12 20:00:52.651]: Info: 
Colorspace         : DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709
Bits Per Color     : 8
Red Primary        : [0.679688,0.30957]
Green Primary      : [0.206055,0.693359]
Blue Primary       : [0.151367,0.0546875]
White Point        : [0.313477,0.329102]
Min Luminance      : 0.5 nits
Max Luminance      : 270 nits
Max Full Luminance : 270 nits
[2025-06-12 20:00:52.652]: Info: Desktop resolution [1200x2670]
[2025-06-12 20:00:52.652]: Info: Desktop format [DXGI_FORMAT_B8G8R8A8_UNORM]
[2025-06-12 20:00:52.652]: Info: Display refresh rate [60Hz]
[2025-06-12 20:00:52.652]: Info: Requested frame rate [60fps]
[2025-06-12 20:00:52.652]: Info: Client dynamicRange: 1, Display is HDR: false
[2025-06-12 20:00:52.652]: Info: Creating encoder [hevc_nvenc]
[2025-06-12 20:00:52.652]: Info: Color coding: SDR (Rec. 709)
[2025-06-12 20:00:52.652]: Info: Color depth: 10-bit
[2025-06-12 20:00:52.652]: Info: Color range: JPEG
[2025-06-12 20:00:54.129]: Info: NvEnc: created encoder HEVC P1 async yuv444 10-bit two-pass rfi spatial-aq
[2025-06-12 20:00:54.182]: Info: 
[2025-06-12 20:00:54.182]: Info: // Ignore any errors mentioned above, they are not relevant. //
[2025-06-12 20:00:54.182]: Info: 
[2025-06-12 20:00:54.182]: Info: Found H.264 encoder: h264_nvenc [nvenc]
[2025-06-12 20:00:54.182]: Info: Found HEVC encoder: hevc_nvenc [nvenc]
[2025-06-12 20:00:54.185]: Info: Configuration UI available at [https://localhost:47990]
[2025-06-12 20:00:54.966]: Info: Registered Apollo mDNS service
[2025-06-12 20:01:01.634]: Info: Display mode for client [Mi14] requested to [1200x2670x60]
[2025-06-12 20:01:03.240]: Warning: Virtual Display creation failed, or cannot get created display name in time!
[2025-06-12 20:01:03.397]: Info: Encoder reenumeration is required
[2025-06-12 20:01:03.397]: Info: // Testing for available encoders, this may generate errors. You can safely ignore those errors. //
[2025-06-12 20:01:03.397]: Info: Trying encoder [nvenc]
[2025-06-12 20:01:03.880]: Info: 
Device Description : NVIDIA GeForce RTX 2080 Ti
Device Vendor ID   : 0x000010DE
Device Device ID   : 0x00001E07
Device Video Mem   : 22230 MiB
Device Sys Mem     : 0 MiB
Share Sys Mem      : 32728 MiB
Feature Level      : 0x0000B100
Capture size       : 1200x1080
Offset             : 0x0
Virtual Desktop    : 1200x1080
[2025-06-12 20:01:03.881]: Info: Active GPU has HAGS disabled
[2025-06-12 20:01:03.881]: Info: Using realtime GPU priority
[2025-06-12 20:01:03.881]: Info: 
Colorspace         : DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709
Bits Per Color     : 8
Red Primary        : [0.639648,0.330078]
Green Primary      : [0.299805,0.599609]
Blue Primary       : [0.149414,0.0595703]
White Point        : [0.3125,0.329102]
Min Luminance      : 0.5 nits
Max Luminance      : 270 nits
Max Full Luminance : 270 nits
[2025-06-12 20:01:03.882]: Info: Desktop resolution [1200x1080]
[2025-06-12 20:01:03.882]: Info: Desktop format [DXGI_FORMAT_B8G8R8A8_UNORM]
[2025-06-12 20:01:03.882]: Info: Display refresh rate [60Hz]
[2025-06-12 20:01:03.882]: Info: Requested frame rate [60fps]
[2025-06-12 20:01:03.882]: Info: Client dynamicRange: 0, Display is HDR: false
[2025-06-12 20:01:03.882]: Info: Creating encoder [h264_nvenc]
[2025-06-12 20:01:03.882]: Info: Color coding: SDR (Rec. 601)
[2025-06-12 20:01:03.882]: Info: Color depth: 8-bit
[2025-06-12 20:01:03.882]: Info: Color range: JPEG
[2025-06-12 20:01:04.315]: Info: NvEnc: created encoder H.264 P1 async two-pass rfi spatial-aq
[2025-06-12 20:01:04.342]: Info: Client dynamicRange: 0, Display is HDR: false
[2025-06-12 20:01:04.342]: Info: Creating encoder [hevc_nvenc]
[2025-06-12 20:01:04.343]: Info: Color coding: SDR (Rec. 601)
[2025-06-12 20:01:04.343]: Info: Color depth: 8-bit
[2025-06-12 20:01:04.343]: Info: Color range: JPEG
[2025-06-12 20:01:04.764]: Info: NvEnc: created encoder HEVC P1 async two-pass rfi spatial-aq
[2025-06-12 20:01:04.790]: Info: Client dynamicRange: 0, Display is HDR: false
[2025-06-12 20:01:04.790]: Info: Creating encoder [av1_nvenc]
[2025-06-12 20:01:04.790]: Info: Color coding: SDR (Rec. 601)
[2025-06-12 20:01:04.790]: Info: Color depth: 8-bit
[2025-06-12 20:01:04.790]: Info: Color range: JPEG
[2025-06-12 20:01:04.963]: Error: NvEnc: encoding format is not supported by the gpu
[2025-06-12 20:01:04.964]: Error: NvEnc: NvEncUnregisterAsyncEvent() failed: NV_ENC_ERR_DEVICE_NOT_EXIST
[2025-06-12 20:01:04.971]: Info: Client dynamicRange: 0, Display is HDR: false
[2025-06-12 20:01:04.971]: Info: Creating encoder [h264_nvenc]
[2025-06-12 20:01:04.971]: Info: Color coding: SDR (Rec. 601)
[2025-06-12 20:01:04.971]: Info: Color depth: 8-bit
[2025-06-12 20:01:04.971]: Info: Color range: JPEG
[2025-06-12 20:01:05.363]: Info: NvEnc: created encoder H.264 P1 async yuv444 two-pass rfi spatial-aq
[2025-06-12 20:01:05.841]: Info: 
Device Description : NVIDIA GeForce RTX 2080 Ti
Device Vendor ID   : 0x000010DE
Device Device ID   : 0x00001E07
Device Video Mem   : 22230 MiB
Device Sys Mem     : 0 MiB
Share Sys Mem      : 32728 MiB
Feature Level      : 0x0000B100
Capture size       : 1200x1080
Offset             : 0x0
Virtual Desktop    : 1200x1080
[2025-06-12 20:01:05.841]: Info: Active GPU has HAGS disabled
[2025-06-12 20:01:05.841]: Info: Using realtime GPU priority
[2025-06-12 20:01:05.841]: Info: 
Colorspace         : DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709
Bits Per Color     : 8
Red Primary        : [0.639648,0.330078]
Green Primary      : [0.299805,0.599609]
Blue Primary       : [0.149414,0.0595703]
White Point        : [0.3125,0.329102]
Min Luminance      : 0.5 nits
Max Luminance      : 270 nits
Max Full Luminance : 270 nits
[2025-06-12 20:01:05.842]: Info: Desktop resolution [1200x1080]
[2025-06-12 20:01:05.842]: Info: Desktop format [DXGI_FORMAT_B8G8R8A8_UNORM]
[2025-06-12 20:01:05.842]: Info: Display refresh rate [60Hz]
[2025-06-12 20:01:05.842]: Info: Requested frame rate [60fps]
[2025-06-12 20:01:05.842]: Info: Client dynamicRange: 1, Display is HDR: false
[2025-06-12 20:01:05.842]: Info: Creating encoder [hevc_nvenc]
[2025-06-12 20:01:05.842]: Info: Color coding: SDR (Rec. 709)
[2025-06-12 20:01:05.842]: Info: Color depth: 10-bit
[2025-06-12 20:01:05.842]: Info: Color range: JPEG
[2025-06-12 20:01:06.836]: Info: NvEnc: created encoder HEVC P1 async yuv444 10-bit two-pass rfi spatial-aq
[2025-06-12 20:01:06.888]: Info: 
[2025-06-12 20:01:06.888]: Info: // Ignore any errors mentioned above, they are not relevant. //
[2025-06-12 20:01:06.888]: Info: 
[2025-06-12 20:01:06.888]: Info: Found H.264 encoder: h264_nvenc [nvenc]
[2025-06-12 20:01:06.888]: Info: Found HEVC encoder: hevc_nvenc [nvenc]
[2025-06-12 20:01:06.889]: Info: No commands configured, showing desktop...
[2025-06-12 20:01:06.951]: Info: Client Requested bitrate is [34000kbps]
[2025-06-12 20:01:06.951]: Info: Host Streaming bitrate is [34000kbps]
[2025-06-12 20:01:06.952]: Info: New streaming session started [active sessions: 1]
[2025-06-12 20:01:07.130]: Info: nvprefs: No need to modify application profile settings
[2025-06-12 20:01:07.130]: Info: nvprefs: No need to modify global profile settings
[2025-06-12 20:01:07.143]: Info: Session resuming for app [Virtual Display].
[2025-06-12 20:01:07.164]: Info: CLIENT CONNECTED
[2025-06-12 20:01:07.439]: Info: Selected audio sink: {0.0.0.00000000}.{a7d7ff83-68d3-4af0-9765-6071ce380444}
[2025-06-12 20:01:07.447]: Info: Audio mixer format is 32-bit, 48000 Hz, no resampling needed
[2025-06-12 20:01:07.472]: Info: Audio capture format is [F32 48000 2.0]
[2025-06-12 20:01:07.473]: Info: Opus initialized: 48 kHz, 2 channels, 512 kbps (total), LOWDELAY
[2025-06-12 20:01:07.979]: Info: 
Device Description : NVIDIA GeForce RTX 2080 Ti
Device Vendor ID   : 0x000010DE
Device Device ID   : 0x00001E07
Device Video Mem   : 22230 MiB
Device Sys Mem     : 0 MiB
Share Sys Mem      : 32728 MiB
Feature Level      : 0x0000B100
Capture size       : 1200x1080
Offset             : 0x0
Virtual Desktop    : 1200x1080
[2025-06-12 20:01:07.979]: Info: Active GPU has HAGS disabled
[2025-06-12 20:01:07.979]: Info: Using realtime GPU priority
[2025-06-12 20:01:07.979]: Info: 
Colorspace         : DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709
Bits Per Color     : 8
Red Primary        : [0.639648,0.330078]
Green Primary      : [0.299805,0.599609]
Blue Primary       : [0.149414,0.0595703]
White Point        : [0.3125,0.329102]
Min Luminance      : 0.5 nits
Max Luminance      : 270 nits
Max Full Luminance : 270 nits
[2025-06-12 20:01:07.980]: Info: Desktop resolution [1200x1080]
[2025-06-12 20:01:07.980]: Info: Desktop format [DXGI_FORMAT_B8G8R8A8_UNORM]
[2025-06-12 20:01:07.980]: Info: Display refresh rate [60Hz]
[2025-06-12 20:01:07.980]: Info: Requested frame rate [60fps]
[2025-06-12 20:01:07.980]: Info: Client dynamicRange: 0, Display is HDR: false
[2025-06-12 20:01:07.980]: Info: Creating encoder [hevc_nvenc]
[2025-06-12 20:01:07.980]: Info: Color coding: SDR (Rec. 709)
[2025-06-12 20:01:07.980]: Info: Color depth: 8-bit
[2025-06-12 20:01:07.980]: Info: Color range: MPEG
[2025-06-12 20:01:07.999]: Info: Capture format [DXGI_FORMAT_B8G8R8A8_UNORM]
[2025-06-12 20:01:08.381]: Info: NvEnc: created encoder HEVC P1 async two-pass rfi spatial-aq
[2025-06-12 20:01:08.381]: Info: Frame threshold: 16000us
[2025-06-12 20:01:10.487]: Info: Creating virtual touch input device

Please let me know if you need any additional information. Thank you very much for your hard work on Apollo!

[ClassicOldSong]

Your logs show that Apollo created desktop at 1200x2670. But somehow it changed to 1200x1080 later on. Have you configured the desktop to "extended"?

Check this toturial if you're new to Apollo and multi display: https://youtu.be/H0jmqVIhwIA?t=858

If you're familiar with it, it might be other problems: https://github.com/ClassicOldSong/Apollo/wiki/FAQ#resolution-cant-match-client-side-request-anymore

[Akikazehub]

Thanks for the hint!

Yes, you're right — I was using "Duplicate these displays" mode because I sometimes turn on the second monitor and want both screens to show the same content. I also added custom resolutions for my mobile device via NVIDIA Control Panel, so usually I can switch to 1200x2670 when streaming.

It seems like the duplication mode conflicts with Apollo's virtual display handling, and that's probably why it fell back to 1200x1080.

[ClassicOldSong]

So is the problem solved? What's up for the reopen?

[Akikazehub]

Yes, using single monitor mode works perfectly fine — no issues at all.

I was just wondering: is it technically possible to support "Duplicate these displays" mode as well in the future? Since sometimes I do need to mirror my monitors, it would be nice if Apollo could handle virtual displays correctly even under duplication mode.

Thanks again for your help!

[ClassicOldSong]

You don't need virtual display if you're duplicating. And of coursd Apollo handles duplicate mode correctly.

[Akikazehub]

Thanks again for your quick reply and explanations!

I think I now better understand where my confusion came from, so let me clarify my goal a bit:

Most of the time I keep my system in "Duplicate displays" mode for convenience.

What I'd like is:

    When launching Desktop mode in Apollo (either via Moonlight or Artemis), simply stream the current display as-is, without changing resolution.

    When launching Virtual Display mode, allow Apollo to switch to the requested client resolution, either by:

        applying it only to the virtual display, or

        optionally disabling the physical display and applying the requested resolution to the virtual one.

To troubleshoot, I tried multiple settings under Audio/Video > Advanced display device options and also toggled the "Optimize game settings" option on the client side. But so far I either get:

No resolution change at all in both Desktop and Virtual modes, or

Both Desktop and Virtual modes trying to switch resolution (sometimes incorrectly).

Interestingly, when I unplugged all monitors and tested with a new DP monitor, everything suddenly started to work exactly as expected. This makes me suspect that my original HDMI display setup might have some conflict. I followed the FAQ to clear monitor registry entries and reconnected the HDMI display — but after switching back to Duplicate mode, the behavior became inconsistent again.

Now I'm wondering if this might relate to NVIDIA drivers or custom resolutions I previously added via NVIDIA Control Panel.

At this point, I'm not sure if this is something Apollo can control or whether it's purely a Windows/NVIDIA interaction. Just wanted to share my findings in case it helps, and also to kindly ask if you have any advice or suggestions for achieving this behavior more reliably.

Thanks a lot for your patience and support!

[ClassicOldSong]

First, disable Advanced Display Options if you have enabled

Then disable Headless Mode

Then uncheck "Always use virtual display" in Desktop app

If you're using Artemis, also uncheck "Use virtual display" option there

Then when you stream Desktop, it should mirror your display directly without changing resolution.

You shouldn't use Windows's duplicate mode for streaming, it's pointless to have a virtual display if you're mirroring the content, unless you want mirroring with resolution matching.

[Akikazehub]

Got it working now! After resetting my custom settings and following your instructions, switching to "Second screen only" after first connection finally made everything behave as expected.

Really appreciate your time and help — thank you!