Troubleshooting • Re: RealVNC stops working on Pi update

After unplugging the cable from the monitor, the VNC connection is interrupted. Here are the log vncviewer.log:

RealVNC(R) Viewer 7.14.0 (r5) x64 (May 23 2025 11:19:27)
Copyright (C) RealVNC Ltd.
RealVNC and VNC are trademarks of RealVNC Ltd and are protected by trademark
registrations and/or pending trademark applications in the European Union,
United States of America and other jurisdictions.
Protected by UK patent 2481870; US patent 8760366; EU patent 2652951.
See https://www.realvnc.com for information on VNC.
For third party acknowledgements see:
https://www.realvnc.com/docs/7/foss.html
OS: Microsoft Windows 11, version 21H2, x64
<14> 2025-07-15T10:28:23.466Z DESKTOP-T vncviewer[14456]: LogDestMem: Start replaying stored messages
<14> 2025-07-15T10:28:23.466Z DESKTOP-T vncviewer[14456]: Localize: Locales pl_PL:en_US
<14> 2025-07-15T10:28:23.466Z DESKTOP-T vncviewer[14456]: CFeatureLicensing: [MissingLicense] Missing license
<14> 2025-07-15T10:28:23.466Z DESKTOP-T vncviewer[14456]: LogDestMem: Finished replaying stored messages
<14> 2025-07-15T10:28:23.468Z DESKTOP-T vncviewer[14456]: AbComms: Listening on RealVNC.Pol.vncviewer.AbComms
<13> 2025-07-15T10:28:23.468Z DESKTOP-T vncviewer[14456]: AbApp: started
<14> 2025-07-15T10:28:23.469Z DESKTOP-T vncviewer[14456]: CloudConfig: Getting CloudConfig.pkg from built-in resource
<14> 2025-07-15T10:28:23.473Z DESKTOP-T vncviewer[14456]: CloudConfig: Using business identifier 314cb7bb-a355-490f-bd39-c21b4b181ee4
<14> 2025-07-15T10:28:25.861Z DESKTOP-T vncviewer[14456]: Child: 6772: Localize: Locales pl_PL:en_US
<14> 2025-07-15T10:28:25.861Z DESKTOP-T vncviewer[14456]: Child: 6772: CFeatureLicensing: [MissingLicense] Missing license
<14> 2025-07-15T10:28:25.861Z DESKTOP-T vncviewer[14456]: Child: 6772: CloudConfig: Getting CloudConfig.pkg from built-in resource
<14> 2025-07-15T10:28:25.861Z DESKTOP-T vncviewer[14456]: Child: 6772: CloudConfig: Using business identifier c2cc092d-a28a-4271-90f4-318fd596646a
<14> 2025-07-15T10:28:25.861Z DESKTOP-T vncviewer[14456]: Child: 6772: CModuleCtrlCommsListen: Listening on RealVNC.Pol.vncviewer.CtrlComms.6772
<13> 2025-07-15T10:28:25.861Z DESKTOP-T vncviewer[14456]: Child: 6772: CSession: Connecting to 192.168.100.20 (Chooser for Direct UDP/Direct TCP via proxy settings)
<13> 2025-07-15T10:28:25.891Z DESKTOP-T vncviewer[14456]: Child: 6772: CSession: Beginning RFB connection to 192.168.100.20::5900 (TCP)
<14> 2025-07-15T10:28:25.891Z DESKTOP-T vncviewer[14456]: Child: 6772: CSession: Encryption set to 'Server'
<14> 2025-07-15T10:28:25.891Z DESKTOP-T vncviewer[14456]: Child: 6772: CConnection: Server supports RFB protocol version 3.8
<14> 2025-07-15T10:28:25.891Z DESKTOP-T vncviewer[14456]: Child: 6772: CConnection: Using RFB protocol version 3.8
<14> 2025-07-15T10:28:25.996Z DESKTOP-T vncviewer[14456]: Child: 6772: CProtoV4Down: Choosing security type RA2_256(129)
<14> 2025-07-15T10:28:25.996Z DESKTOP-T vncviewer[14456]: Child: 6772: SecTypeRA2: using AES-256
<13> 2025-07-15T10:28:33.008Z DESKTOP-T vncviewer[14456]: Child: 6772: CConnection: Authentication successful
<14> 2025-07-15T10:28:33.068Z DESKTOP-T vncviewer[14456]: Child: 6772: QualSelector: Server pixel format depth 24 (32 bpp) little-endian rgb888
<14> 2025-07-15T10:28:33.068Z DESKTOP-T vncviewer[14456]: Child: 6772: QualSelector: Requesting ZRLE2 encoding (line speed 0 kbit/s)
<14> 2025-07-15T10:28:33.068Z DESKTOP-T vncviewer[14456]: Child: 6772: QualSelector: Using pixel format depth 6 (8 bpp) rgb222
<14> 2025-07-15T10:28:33.068Z DESKTOP-T vncviewer[14456]: Child: 6772: QualSelector: requesting initial update
<14> 2025-07-15T10:28:33.138Z DESKTOP-T vncviewer[14456]: Child: 6772: QualSelector: Making Assisted Line-Speed estimation request, height 13
<14> 2025-07-15T10:28:33.306Z DESKTOP-T vncviewer[14456]: Child: 6772: QualSelector: Requesting ZRLE2 encoding (line speed 100000 kbit/s)
<14> 2025-07-15T10:28:33.306Z DESKTOP-T vncviewer[14456]: Child: 6772: QualSelector: Requesting full color (line speed 100000 kbit/s)
<14> 2025-07-15T10:28:33.306Z DESKTOP-T vncviewer[14456]: Child: 6772: QualSelector: Using pixel format depth 24 (32 bpp) little-endian rgb888
<13> 2025-07-15T10:28:36.394Z DESKTOP-T vncviewer[14456]: Child: 6772: CConnection: close: [EndOfStream] The connection closed unexpectedly.

Statistics: Posted by OLD — Tue Jul 15, 2025 10:37 am

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