[X2Go-User] Cross-session copy/paste issue

Tue Feb 23 08:18:07 CET 2021

You need to install that on the server side. And you need to start a new
session. You should be able to copy/paste anything including images and
richtext with that code, so please test that to ensure you have the right
version running.

Ah, no, I just saw what is wrong: you only installed the debuginfo packages!

Uli

Jonah Benton <jonah at jonah.com> schrieb am Di., 23. Feb. 2021, 05:35:

> Thank you Uli. Slight modification:
>
> git archive -o ~/rpmbuild/SOURCES/nx-libs-3.5.99.26.tar.gz --prefix=nx-libs-3.5.99.26/
> pr/many_clipboard_changes
>
> Build worked fine.
>
> Installed:
>
> sudo rpm -i --force nxagent-debuginfo-3.5.99.26-0.0build1.fc33.x86_64.rpm
> nx-libs-debuginfo-3.5.99.26-0.0build1.fc33.x86_64.rpm
>
> I logged out of two of my sessions, then restarted them- am still not able
> to copy paste between them.
>
> Should that now work?
>
> If so, is there something I can pull out of the logs?
>
>
> On Mon, Feb 22, 2021 at 3:32 PM Ulrich Sibiller <uli42 at gmx.de> wrote:
>
>> On Sun, Feb 21, 2021 at 7:22 PM Jonah Benton <jonah at jonah.com> wrote:
>>
>> > Thank you- concur about images- in the past, copy-paste of them only
>> worked within a session, not across. My workaround was to paste-save to
>> /tmp on the host and then open saved image from another session. But nearly
>> all copy-paste for me is text / URLs.
>>
>> Ah, ok. But that's not really comfortable or seamless...
>>
>> > Re versions of nxagent:
>>
>> So you did an update from 3.5.99.24 to 3.5.99.26. There were minimal
>> changes in the range (only 5 commits):
>> eb7b9773 nxagent: make nxagentXFixesInfo.Initialized a Boolean
>> fec462906 nxagent: treat all Traps as Booleans everywhere
>> b07b6c537 Clipboard.c: fix bug in special optimization for nested settings
>> ebee6af05 Clipboard.c: add missing ifdefs
>> edb5a918a Clipboard.c: fix missing )
>> ae037701f nxagent: fix stack smashing
>>
>> > I can try to downgrade if there is an earlier 3.5.99 on Fedora 33- will
>> that matter?
>>
>> Probably not, but why not try it?
>>
>> > Happy to give a go at a replacement build.
>>
>> Ok, here's the branch you should compile:
>> https://github.com/uli42/nx-libs/tree/pr/many_clipboard_fixes
>>
>> Generally you need to do this:
>> 1. git clone
>> https://github.com/uli42/nx-libs/tree/pr/many_clipboard_fixes
>> 2. cd nx-libs
>> 3. mkdir -p ~/rpmbuild/{SOURCES,RPMS,SRPMS,OTHER,BUILD}
>> 4. git archive -o ~/rpmbuild/SOURCES/nx-libs-3.5.99.26.tar.gz
>> --prefix=nx-libs-3.5.99.26/ 3.6.x
>> 5. cp --preserve=time nx-libs.spec ~/rpmbuild/SOURCES
>> 6. rpmbuild -ba ~/rpmbuild/SOURCES/nx-libs.spec
>> 7. install the resulting nxagent rpm
>>
>> I do not have a fedora at hand so I could not test this. In case of
>> problems you can also try the spec file from the fedora build.
>>
>> > I did just note two additional behaviors-
>> >
>> > 1. cross-session paste does *eventually* complete
>> >
>> > -copy of text 1 in session 1
>> > -attempt to paste in session 2
>> > -observe session 2 window freeze
>> > -switch to host window
>> > -paste into host window (success)
>> > -select and recopy in host window
>> > -switch back to session 2- paste of text 1 had completed
>> >
>> > So the paste took about 5 seconds
>>
>> My branch adds some caching of clipboard communication which speeds up
>> operations like this considerably.
>>
>> > 2. cross-session paste payload can be replaced in flight
>> >
>> > -copy of text 1 in session 1
>> > -switch to session 2
>> > -attempt to paste (text 1 into session 2)
>> > -observe session 2 window freeze
>> > -switch to another window in session 2
>> > -select and copy text 2 (in another window in session 2)
>> > -switch to the session 2 window attempting to complete the original
>> paste
>> > -note that the paste completed- but using text 2, not text 1
>>
>> That's one of the big changes in my branch. Previously the code was
>> sharing some variables for all clipboards and the behaviour you are
>> describing here is just the result of that.
>>
>> Uli
>>
>>
>> >
>> > Thanks again!
>> >
>> > Jonah
>> >
>> >
>> > On Sun, Feb 21, 2021 at 7:59 AM Ulrich Sibiller <uli42 at gmx.de> wrote:
>> >>
>> >> Well, I am wondering how you managed to reliably copy/paste images.
>> This is something the current code does not support.
>> >>
>> >> Regarding the switch to non-working: you probably have updated the
>> nxagent package on your server. Please check what was the old version and
>> what you have installed now. You could try to downgrade again. But please
>> post the versions here anyway.
>> >>
>> >> I am still working at a massive clipboard rework which is close to
>> being finished (I hope...). If you are able to compile it on your own you
>> can test it. I can assist with instructions
>> >>
>> >> Uli
>> >>
>> >> Jonah Benton <jonah at jonah.com> schrieb am Sa., 20. Feb. 2021, 20:30:
>> >>>
>> >>> Hi folks,
>> >>>
>> >>> Let me first say thank you to X2Go maintainers- I happened upon X2Go
>> about 6 months ago when figuring out how to switch my workflow from Fedora
>> VMs on MacOS to distinct desktop environments on Fedora. It is such a
>> profoundly excellent tool. Thank you for your efforts.
>> >>>
>> >>> Now- to describe a problem that just cropped up, hoping someone can
>> help me debug.
>> >>>
>> >>> I have been running Fedora 32 - XFCE on a Thinkpad, simultaneously
>> running 7 distinct local X2Go sessions under 7 different host users. Each
>> session's window resides within its own XFCE logical desktop, and I switch
>> between them with the switch desktop hotkeys. X2Go sessions are configured
>> to support bidirectional copy/paste, and generally it works seamlessly to
>> copy text or images from apps in one session's window to another or to/from
>> the host.
>> >>>
>> >>> Last night I upgraded to Fedora 33, with the requisite updates to
>> X2Go. Now, copy/paste is reliably broken in one area:
>> >>>
>> >>> * from host into any session still is fine
>> >>> * from session into host still is fine
>> >>> * from a session into the same session still is fine
>> >>> * from one session into another session no longer works
>> >>>
>> >>> On failed pastes- where the copy was from one session and the paste
>> is another session- when the paste recipient is a browser (Chromium,
>> Firefox, whatever), sometimes the recipient browser tab temporarily locks
>> up trying (and failing) to retrieve the paste material.
>> >>>
>> >>> All X2Go sessions are still configured for bi-directional copy-paste.
>> >>>
>> >>> [admin at localhost ~]$ x2goclient --version
>> >>> x2go-WARNING-1> English language requested, not loading translator.
>> >>> x2go-WARNING-1> English language requested, not loading translator.
>> >>> 4.1.2.2
>> >>>
>> >>> [admin at localhost ~]$ x2goversion
>> >>> : 3.2.0.0
>> >>> : 4.1.0.3
>> >>> : 4.1.0.3
>> >>> : 3.2.0.0
>> >>> : 4.1.0.3
>> >>> : 3.5.99.26
>> >>> : 4.1.0.3
>> >>>
>> >>> Any thoughts on tracking down the issue?
>> >>>
>> >>> Thanks again,
>> >>>
>> >>> Jonah
>> >>>
>> >>>
>> >>>
>> >>>
>> >>> _______________________________________________
>> >>> x2go-user mailing list
>> >>> x2go-user at lists.x2go.org
>> >>> https://lists.x2go.org/listinfo/x2go-user
>>
>
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