[X2Go-User] Copy and paste between systems stops working

[Stefan Baur]

Am 13.02.20 um 10:16 schrieb Ulrich Sibiller:
> On Thu, Feb 13, 2020 at 10:07 AM Stefan Baur <X2Go-ML-1 at baur-itcs.de> wrote:
>> Am 13.02.20 um 09:53 schrieb Ulrich Sibiller:
>>> Sorry about that. One workaround might be to copy something to
>>> clipboard on the linux side and then on Windows again. Does that help?
>> Do you think we could add some kind of workaround that "zaps" the
>> clipboard(s) on both ends?
>> Kind of like how you "zap" a heart with a defibrillator when it goes
>> into ventricular fibrillation.
>> While that wouldn't fix the issue, it would allow the user to continue
>> without having to suspend and resume the session - plus we might be able
>> to gather clipboard content info for a bugreport that way.
>> I'm thinking of a "hexdump -C"-like output that gets stored to a file on
>> each end and that the user could submit if there's nothing confidential
>> in it.
> I deeply doubt that the clipboard CONTENT is responsible for the
> problems. That's merely a problem in the workflow.

Are you sure? Some reports I received (though I'm still waiting for the
final test results) hinted that special characters might be triggering
it. Things outside the 7-Bit or 7-Bit+usual-Windows-codepage range.
Things like accented characters or "unusual" whitespace (not a mere
blank, \t, \r, or \n, of course).


> My approach is rather adding a debug facility that can be enabled at
> runtime instead of compile time so that a user can enable it as
> needed.
> 
> A zapping keystroke could be implemented but I really consider as a
> temporary. I'd love to see the problems vanish altogether...

The thing is, if you log the content of the clipboard(s) on both ends
*before* you zap, that info might help you with debugging this.
Think of it as a "clipboard coredump".

-Stefan

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