Bug 511306

Summary:	clibboard not working anymore from plasma (host) to virtualbox vm
Product:	[Plasma] plasmashell	Reporter:	Vincent Gibault <vincent.gibault>
Component:	Clipboard widget & pop-up	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED FIXED
Severity:	normal	CC:	kde, nomaanjamaluddin, qydwhotmail
Priority:	NOR
Version First Reported In:	6.5.0
Target Milestone:	1.0
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	klipper config file

Description Vincent Gibault 2025-10-29 09:34:32 UTC

Created attachment 186279 [details]
klipper config file

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SUMMARY
When I try to copy text from my Windows 11 VM to any program running on KDE, the clipboard is not updated.
This issue started appearing since Plasma version 6.5.

In the VirtualBox guest logs, I see the following error:
In virtualbox guest logs i view
00:00:44.224324 VMMDev: Guest Log: 00:00:24.340557 shclwnd  *** Error: Shared Clipboard: WM_CLIPBOARDUPDATE failed with VERR_ACCESS_DENIED

STEPS TO REPRODUCE
1. Install virtualbox (last version 7.2.4) but the problem seems to be in others versions
2. create a virtual machine with windows 11
3. open notepad
4 open kate in kde
5. copy from kate to notepad works, but copy from notepad to kate fails

OBSERVED RESULT
the clibboard is not update in virtual machine, in the log there is an error , it seems that kde locks the cliboard

EXPECTED RESULT
clipboard updated with paste from kde

SOFTWARE/OS VERSIONS
VirtualMachine windows 11
Host: opensuse tumbleweed

Windows: 
macOS: 
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: 
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION
There seems to be something similar on wine (according to bug reports)
in virtualbox logs:
00:00:44.224324 VMMDev: Guest Log: 00:00:24.340557 shclwnd  *** Error: Shared Clipboard: WM_CLIPBOARDUPDATE failed with VERR_ACCESS_DENIED

Comment 1 Vincent Gibault 2025-10-29 09:38:36 UTC

here is my kinfo
Operating System: openSUSE Tumbleweed 20251027
KDE Plasma Version: 6.5.0
KDE Frameworks Version: 6.19.0
Qt Version: 6.10.0
Kernel Version: 6.17.5-1-default (64-bit)
Graphics Platform: Wayland
Processors: 24 × 12th Gen Intel® Core™ i9-12900KF
Memory: 64 Gio of RAM (62.6 Gio usable)
Graphics Processor: NVIDIA GeForce GTX 1650

Comment 2 David Edmundson 2025-10-29 16:12:15 UTC

Can you try with 6.5.1 and report back. There was a clipboard change that fixed Wine apps, I can believe VMs behave the same

Comment 3 Vincent Gibault 2025-10-29 20:36:41 UTC

Hello ,

i tried plasma 6.5.1, the problem is still there.

But i don't have the virtualbox log entry anymore.

Comment 4 Nomaan 2025-10-30 04:24:32 UTC

I’m facing this issue as well, I’ve tested this against Debian, Ubuntu, Arch, Kali, Windows 10 and Windows 11 virtual machines, all have the latest guest additions and extension pack installed

There has been no change in my system’s configuration before and after finding this bug, except upgrading to 6.5.0-1, the new 6.5.1-1 update doesnt seem to fix this
Guest to Host Clipboard is shared flawlessly, however Host to Guest just doesn’t

Bidrectional Clipboard sharing works well in QEMU/KVM virtual machines that have spice agent installed, not sure if this information helps but here it is

Comment 5 Vincent Gibault 2025-11-13 08:23:43 UTC

Since 6.5.2 verion of plasma, this works again. So i close the bug.