View Issue Details

IDProjectCategoryView StatusLast Update
0016572CentOS-8tigervncpublic2020-01-10 04:40
Status newResolutionopen 
Product Version8.0.1905 
Target VersionFixed in Version 
Summary0016572: Unable to "login" to Centos8 when using VNC.
DescriptionI'm using a Windows 10 machine with VirtualBox 6.
I have successfully installed Centos 8 and TigerVNC.
I have successfully connecter to the Centos 8 machine via TigerVNC (I am using RealVNC vncViewer).

Unfortunately, when trying to login the "next" button is constantly being "clicked".
This prevents me from typing in the password and instead I keep receiving an "Authentication error" message.

I suspect the Vncviewer is sending an "input" causing the "next" button to be "clicked".
Steps To Reproduce1. Windows 10.
2. VirtualBox 6.
3. Install Centos 8.
4. Configure and Install TigerVNC.
5. Connect to Centos 8 machine via VNC.
6. Try to enter password via the VNC.
TagsNo tags attached.




2019-10-10 22:38


i1.png (1,050,704 bytes)


2019-10-16 14:59

reporter   ~0035505

Quick update:
I found a workaround by disabling the "screen lock" in the settings.
When screen lock is disabled it does not ask for a password. (at least doesn't seem to... so far...).


2019-10-26 23:00

reporter   ~0035592

I can confirm this bug as well.
Another workaround which is odd is use xrdp which uses xvnc to run. It goes past the login screen and lets you remote it.
The drawback is for managing Virtual Machines the refresh is bad.
I did a ton of searching and found one other and appears it is in the Redhat Repos as well.
Thanks for all the great work and hopefully this bug can be fixed asap.
Taken from the other bug. This is the steps to reproduce.
I am seeing this broken behaviour on RHEL8. I do not have fprintd installed

Steps to reproduce

- Connect to server using tigervnc client
- wait for screen lock
- try to enter password

[root@cheops rlogie]# yum list|grep vnc
gtk-vnc2.x86_64 0.9.0-1.el8 @AppStream
gvnc.x86_64 0.9.0-1.el8 @AppStream
tigervnc-license.noarch 1.9.0-9.el8 @rhel-8-for-x86_64-appstream-rpms
tigervnc-server.x86_64 1.9.0-9.el8 @rhel-8-for-x86_64-appstream-rpms
tigervnc-server-minimal.x86_64 1.9.0-9.el8 @rhel-8-for-x86_64-appstream-rpms
gtk-vnc2.i686 0.9.0-1.el8 rhel-8-for-x86_64-appstream-rpms
gvnc.i686 0.9.0-1.el8 rhel-8-for-x86_64-appstream-rpms
libvncserver.i686 0.9.11-9.el8 rhel-8-for-x86_64-appstream-rpms
libvncserver.x86_64 0.9.11-9.el8 rhel-8-for-x86_64-appstream-rpms
tigervnc.x86_64 1.9.0-9.el8 rhel-8-for-x86_64-appstream-rpms
tigervnc-icons.noarch 1.9.0-9.el8 rhel-8-for-x86_64-appstream-rpms
tigervnc-server-applet.noarch 1.9.0-9.el8 rhel-8-for-x86_64-appstream-rpms
tigervnc-server-module.x86_64 1.9.0-9.el8 rhel-8-for-x86_64-appstream-rpms


2019-10-28 05:11

reporter   ~0035597

RDP Update all works great now,
In RDP Settings - Experience
Change connection to LAN
I turned off desktop background cause I normally do.
I can now view VMS with no issues.
This will work until Tigervnc gets patched to let us login :)
Thanks again.


2019-11-27 23:52

reporter   ~0035769

i am experiencing the same issue as described above. I just rebuild my server with Centos 8 this after noon. i installed tigervnc server and after a reboot when i try to connect via vnc it appears as if the next button is constantly being pressed.
i even tried copying my password and quickly pasting it in but it still fails.
# yum list | grep vnc
gtk-vnc2.x86_64 0.9.0-1.el8 @AppStream
gvnc.x86_64 0.9.0-1.el8 @AppStream
libvncserver.x86_64 0.9.11-9.el8 @AppStream
tigervnc-license.noarch 1.9.0-9.el8 @AppStream
tigervnc-server.x86_64 1.9.0-9.el8 @AppStream
tigervnc-server-minimal.x86_64 1.9.0-9.el8 @AppStream
tigervnc-server-module.x86_64 1.9.0-9.el8 @AppStream
gtk-vnc2.i686 0.9.0-1.el8 AppStream
gvnc.i686 0.9.0-1.el8 AppStream
libvncserver.i686 0.9.11-9.el8 AppStream
tigervnc.x86_64 1.9.0-9.el8 AppStream
tigervnc-icons.noarch 1.9.0-9.el8 AppStream
tigervnc-server-applet.noarch 1.9.0-9.el8 AppStream

CentOS Linux release 8.0.1905 (Core)
please let me know if there is anything else i should provide to help resolve this issue.


2019-12-17 23:41

reporter   ~0035852

Installed Centos 8, Tiger Vnc, Same issue using VNC viewer from iOS.


2019-12-29 21:08

reporter   ~0035913

I seem to be experiencing the same thing. I'm looking to run my machine as headless and the built in Vino setup doesn't seem to allow for running headless so I switched to Tigervnc.
Tomer, whereabouts do I find the screenlock setting?



2020-01-10 02:33

reporter   ~0035992

I am experiencing the same issue as described above on centos 7.7.1908 .
Now, I have locked gnome screen to figure that.

How to lock gnome screen ?


2020-01-10 04:40

reporter   ~0035994

Zevious, I can't recall. But probably something like this:

(Be sure to connect to the machine directly, you won't be able to do it through the VNC).

Issue History

Date Modified Username Field Change
2019-10-10 22:38 Tomer New Issue
2019-10-10 22:38 Tomer File Added: i1.png
2019-10-16 14:59 Tomer Note Added: 0035505
2019-10-26 23:00 niceguy167 Note Added: 0035592
2019-10-28 05:11 niceguy167 Note Added: 0035597
2019-11-27 23:52 ab364 Note Added: 0035769
2019-12-17 23:41 alanis Note Added: 0035852
2019-12-29 21:08 zevious Note Added: 0035913
2020-01-10 02:33 wax207 Note Added: 0035992
2020-01-10 04:40 Tomer Note Added: 0035994