SUMMARY: It's not possible to drag-resize windows from most applications run over NX <https://github.com/ArcticaProject/nx-libs>, the X11 protocol compression suite used by remote-access tools like X2Go. The problem seems to be specific to kwin; when using a different window manager there is no problem resizing windows. Resizing windows by maximizing or restoring them still works. STEPS TO REPRODUCE: 1. Use nxagent to launch a nested X Server on the local machine: $ nxagent -ac :55 -R & 2. Launch an application on the display specified in the previous step: $ DISPLAY=:55 konsole & 3. Place the mouse pointer over one of the edges of the application window and drag. OBSERVED RESULT: 4. The window edge expands by a few pixels and then stops. EXPECTED RESULT: 4. The window edge should expand as far as the mouse pointer is dragged. SOFTWARE/OS VERSIONS KDE Plasma Version: 5.18.3 KDE Frameworks Version: 5.68.0 Qt Version: 5.14.1 nx-libs version: 3.5.99.22 ADDITIONAL INFORMATION * The problem occurs with kwin but not with twin (Trinity's fork of kwin) or xfwm4 * The problem does not occur with every application. I can verify that it is reproducible with Thunderbird, Konsole, xfce4-terminal, and Claws Mail, but not with xterm, xcalc, and glxgears. * The issue has also been reported on the nx-libs issue tracker: <https://github.com/ArcticaProject/nx-libs/issues/910> * Perhaps this issue is somehow related to Bug 83805, which I filed here about 16 years ago?
It is worth adding that after some tries it suddenly works for every further attempt of the same window. Restarting kwin (kwin --replace) resets the state and your need to resize several times again until it works.
(In reply to Ulrich Sibiller from comment #1) > It is worth adding that after some tries it suddenly works for every further > attempt of the same window. This formerly (i.e., many months or years ago) worked for me, but it doesn't any more. > Restarting kwin (kwin --replace) resets the > state and your need to resize several times again until it works. I have never tried this until now, but this one doesn't work for me either.
The problem is still reproducible with kwin 5.19.5. Would any kwin developer like to take a look at this in the near future? I gather that Ulrich (one of the nx-libs developers) is eager to collaborate on a solution, and I'm also available to test patches.
We have a quite overwhelming number of bug reports. It may take some time until someone starts actually looking into this issue.
Can we help somehow to speed up the process? On Mon, Oct 26, 2020 at 9:46 AM Vlad Zahorodnii <bugzilla_noreply@kde.org> wrote: > > https://bugs.kde.org/show_bug.cgi?id=419227 > > --- Comment #4 from Vlad Zahorodnii <vlad.zahorodnii@kde.org> --- > We have a quite overwhelming number of bug reports. It may take some time until > someone starts actually looking into this issue. > > -- > You are receiving this mail because: > You are on the CC list for the bug.
On further testing, the problem sometimes happens with windows of locally running applications, when X2Go isn't even running. (For example, I'm currently experiencing the bug with a local konsole window.) So this is likely a kwin problem that has nothing to do with X2Go; it's just that the problem is more consistently reproducible with windows running over X2Go.
Hi, I can reproduce this under KDE Plasma Version: 5.23.5 KDE Frameworks Version: 5.90.0 Qt Version: 5.15.2 nx-libs version: 3.5.99.26 Is there any update about this issue?