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Windows 10 login screen issue

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Stefan90
Posts: 2
Joined: 2021-04-15 19:49

Windows 10 login screen issue

Post by Stefan90 »

Hi,

On a windows 10 machine I am getting the issue that the login screen is not being showed. The entire screen displays black, with the exception of the mouse cursor.
If a session is started when a user is signed in however VNC works fine. I have tried changing various settings but without any luck.
Is this a known issue / are there any solutions for this / is anyone able to help with this?

This is the log file when set to debug:
Thu Apr 15 14:31:27 2021
winvnc.cpp : test... 10.10.18.153 5500
winvnc.cpp : PostAddNewClient III
vncservice.cpp : PostAddNewClient failed
vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - Error: Usersize 0
vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - Error: Usersize 0
Thu Apr 15 14:31:41 2021
vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - Error: Usersize 0
vncproperties.cpp : ***** DBG - Force USER SYSTEM 2
vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - Error: Usersize 0
vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - Error: Usersize 0
Thu Apr 15 14:31:46 2021
vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - Error: Usersize 0
vncproperties.cpp : ***** DBG - Force USER SYSTEM 2
vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - Error: Usersize 0
vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - Error: Usersize 0
Thu Apr 15 14:31:51 2021
vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - Error: Usersize 0
vncproperties.cpp : ***** DBG - Force USER SYSTEM 2
vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - Error: Usersize 0
vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - Error: Usersize 0
Thu Apr 15 14:31:56 2021
vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - Error: Usersize 0
vncproperties.cpp : ***** DBG - Force USER SYSTEM 2
vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - Error: Usersize 0
vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - Error: Usersize 0
Thu Apr 15 14:32:01 2021
vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - Error: Usersize 0
vncproperties.cpp : ***** DBG - Force USER SYSTEM 2
vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - Error: Usersize 0
vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - Error: Usersize 0
Thu Apr 15 14:32:06 2021
vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - Error: Usersize 0
vncproperties.cpp : ***** DBG - Force USER SYSTEM 2
vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - Error: Usersize 0
vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - Error: Usersize 0
Thu Apr 15 14:32:11 2021
vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - Error: Usersize 0
vncproperties.cpp : ***** DBG - Force USER SYSTEM 2
vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - Error: Usersize 0
vncservice.cpp : @@@@@@@@@@@@@ GetCurrentUser - Error: Usersize 0
ini file
[Permissions]
[admin]
FileTransferEnabled=0
FTUserImpersonation=0
CaptureAlphaBlending=1
BlackAlphaBlending=0
BlankMonitorEnabled=0
BlankInputsOnly=0
DefaultScale=1
UseDSMPlugin=0
DSMPlugin=
primary=1
secondary=0
SocketConnect=0
HTTPConnect=0
AutoPortSelect=1
InputsEnabled=1
LocalInputsDisabled=0
IdleTimeout=1800
EnableJapInput=0
QuerySetting=2
QueryTimeout=10
QueryAccept=0
LockSetting=0
RemoveWallpaper=1
RemoveEffects=1
RemoveFontSmoothing=1
RemoveAero=1
; log sink (multi): 0-NONE, 1-OUTPUTDEBUGSTRING, 2-FILE, 4-CONSOLE
DebugMode=2
; log level: 0-ERROR, 1-CLIENT, 4-SOCKERR, 8-WARN, 9-INFO, 10-DEBUG
DebugLevel=10
Avilog=0
; log directory (winvnc.log)
path=..\..\logs
AllowLoopback=1
LoopbackOnly=1
AllowShutdown=0
AllowProperties=0
AllowEditClients=0
FileTransferTimeout=30
KeepAliveInterval=5
IdleInputTimeout=0
DisableTrayIcon=0
rdpmode=0
MSLogonRequired=0
NewMSLogon=0
ConnectPriority=0
MaxCpu=50
[UltraVNC]
passwd=
passwd2=
[poll]
TurboMode=1
PollUnderCursor=0
PollForeground=0
PollFullScreen=1
OnlyPollConsole=0
OnlyPollOnEvent=0
EnableDriver=1
EnableHook=1
Stefan90
Posts: 2
Joined: 2021-04-15 19:49

Re: Windows 10 login screen issue

Post by Stefan90 »

Additional details: This happens when uvnc is installed as a service.
It looks as follows:
Image

It seems to be happening on all windows 10 machines I tried so far.
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