Hmm, this does not bring any new information. Can you send me the full logs (not on the list, I'd say)

Uli

On Sun, May 10, 2020 at 12:38 AM Kees Bakker <kees@ijzerbout.nl> wrote:

On 07-05-2020 11:48, Ulrich Sibiller wrote:

...

1. well, the current source is this one: https://github.com/ArcticaProject/nx-libs
2. go to nx-X11/programs/Xserver/hw/nxagent
3. edit Screen.c and Window.c. find these lines right at the beginning: #undef TEST #undef DEBUG and change them to #define TEST #define DEBUG

If you want to have really much output that tends to get overwhelming and unreadable you can do the same for Events.c

4. in the toplevel directory run debuild -uc -us

(for other distros see README.NX-development in the toplevel directory)

5. Install the resulting packages
6. run you session, replicate the issue
7. post ~/.xg2o/<your session>/session.log (maybe strip it a bit)

Please ask if you have questions/problems.

Thanks Uli

Here is a first set of (stripped) logs. The procedure was simple, but is of course not 100% reproducible because the mouse movements can be different each time. But the import condition is that the window is only **moved** by clicking on the top bar and dragging it somewhat to the right and a bit down. After the move, keep the mouse down and keep it there for two or three seconds.

Three remote desktops: (standard) Ubuntu, Gnome Classic, MATE. The remote session size is 800x600. The local desktop is 1440x900.

To start I have only grepped the lines with "nxagentChangeScreenConfig:"

In the case of MATE the bug does not show up, but in the other two cases it does.

===============MATE==================== nxagentChangeScreenConfig: called for screen [0], width [800] height [600] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x55aa1ec8be60] nxagentChangeScreenConfig: grabstate [SERVER_GRABBED], client [(nil)] nxagentChangeScreenConfig: Changing config to 800 x 600 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 1,56 800x600 nxagentChangeScreenConfig: returning [1] nxagentChangeScreenConfig: called for screen [0], width [800] height [600] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x55aa1ec8be60] nxagentChangeScreenConfig: grabstate [SERVER_UNGRABBED], client [0x55aa1edd4bb0] nxagentChangeScreenConfig: Changing config to 800 x 600 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 119,99 800x600 nxagentChangeScreenConfig: returning [1] nxagentChangeScreenConfig: called for screen [0], width [800] height [600] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x55aa1ec8be60] nxagentChangeScreenConfig: grabstate [SERVER_UNGRABBED], client [0x55aa1edd4bb0] nxagentChangeScreenConfig: Changing config to 800 x 600 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 300,164 800x600 nxagentChangeScreenConfig: returning [1] ===============MATE====================

===============Ubuntu=================== nxagentChangeScreenConfig: called for screen [0], width [800] height [600] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x563988763e40] nxagentChangeScreenConfig: grabstate [SERVER_GRABBED], client [(nil)] nxagentChangeScreenConfig: Changing config to 800 x 600 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 67,57 800x600 nxagentChangeScreenConfig: returning [1] nxagentChangeScreenConfig: called for screen [0], width [800] height [600] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x563988763e40] nxagentChangeScreenConfig: grabstate [SERVER_UNGRABBED], client [0x5639888ab690] nxagentChangeScreenConfig: Changing config to 800 x 600 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 439,159 800x600 nxagentChangeScreenConfig: returning [1] nxagentChangeScreenConfig: called for screen [0], width [800] height [630] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x563988763e40] nxagentChangeScreenConfig: grabstate [SERVER_UNGRABBED], client [0x5639888ab690] nxagentChangeScreenConfig: Changing config to 800 x 630 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 439,159 800x630 nxagentChangeScreenConfig: returning [1] nxagentChangeScreenConfig: called for screen [0], width [800] height [660] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x563988763e40] nxagentChangeScreenConfig: grabstate [SERVER_UNGRABBED], client [0x5639888ab690] nxagentChangeScreenConfig: Changing config to 800 x 660 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 439,159 800x660 nxagentChangeScreenConfig: returning [1] nxagentChangeScreenConfig: called for screen [0], width [800] height [690] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x563988763e40] nxagentChangeScreenConfig: grabstate [SERVER_UNGRABBED], client [0x5639888ab690] nxagentChangeScreenConfig: Changing config to 800 x 690 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 439,159 800x690 nxagentChangeScreenConfig: returning [1] nxagentChangeScreenConfig: called for screen [0], width [800] height [720] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x563988763e40] nxagentChangeScreenConfig: grabstate [SERVER_UNGRABBED], client [0x5639888ab690] nxagentChangeScreenConfig: Changing config to 800 x 720 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 439,159 800x720 nxagentChangeScreenConfig: returning [1] nxagentChangeScreenConfig: called for screen [0], width [800] height [750] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x563988763e40] nxagentChangeScreenConfig: grabstate [SERVER_UNGRABBED], client [0x5639888ab690] nxagentChangeScreenConfig: Changing config to 800 x 750 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 439,159 800x750 nxagentChangeScreenConfig: returning [1] nxagentChangeScreenConfig: called for screen [0], width [800] height [780] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x563988763e40] nxagentChangeScreenConfig: grabstate [SERVER_UNGRABBED], client [0x56398886cef0] nxagentChangeScreenConfig: Changing config to 800 x 780 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 439,159 800x780 nxagentChangeScreenConfig: returning [1] nxagentChangeScreenConfig: called for screen [0], width [800] height [843] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x563988763e40] nxagentChangeScreenConfig: grabstate [SERVER_UNGRABBED], client [0x56398886cef0] nxagentChangeScreenConfig: Changing config to 800 x 843 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 439,159 800x843 nxagentChangeScreenConfig: returning [1] nxagentChangeScreenConfig: called for screen [0], width [800] height [843] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x563988763e40] nxagentChangeScreenConfig: grabstate [SERVER_UNGRABBED], client [0x56398886cef0] nxagentChangeScreenConfig: Changing config to 800 x 843 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 439,57 800x843 nxagentChangeScreenConfig: returning [1] nxagentChangeScreenConfig: called for screen [0], width [800] height [843] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x563988763e40] nxagentChangeScreenConfig: grabstate [SERVER_UNGRABBED], client [0x5639888ab690] nxagentChangeScreenConfig: Changing config to 800 x 843 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 439,159 800x843 nxagentChangeScreenConfig: returning [1] ===============Ubuntu===================

===============Gnome Classic================ nxagentChangeScreenConfig: called for screen [0], width [800] height [600] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x55efc5939ee0] nxagentChangeScreenConfig: grabstate [SERVER_GRABBED], client [(nil)] nxagentChangeScreenConfig: Changing config to 800 x 600 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 0,65 800x600 nxagentChangeScreenConfig: returning [1] nxagentChangeScreenConfig: called for screen [0], width [800] height [600] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x55efc5939ee0] nxagentChangeScreenConfig: grabstate [SERVER_UNGRABBED], client [0x55efc5a96170] nxagentChangeScreenConfig: Changing config to 800 x 600 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 205,132 800x600 nxagentChangeScreenConfig: returning [1] nxagentChangeScreenConfig: called for screen [0], width [800] height [637] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x55efc5939ee0] nxagentChangeScreenConfig: grabstate [SERVER_UNGRABBED], client [0x55efc5a96170] nxagentChangeScreenConfig: Changing config to 800 x 637 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 205,132 800x637 nxagentChangeScreenConfig: returning [1] nxagentChangeScreenConfig: called for screen [0], width [800] height [674] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x55efc5939ee0] nxagentChangeScreenConfig: grabstate [SERVER_UNGRABBED], client [0x55efc5a96170] nxagentChangeScreenConfig: Changing config to 800 x 674 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 205,132 800x674 nxagentChangeScreenConfig: returning [1] nxagentChangeScreenConfig: called for screen [0], width [800] height [711] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x55efc5939ee0] nxagentChangeScreenConfig: grabstate [SERVER_UNGRABBED], client [0x55efc5a96170] nxagentChangeScreenConfig: Changing config to 800 x 711 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 205,132 800x711 nxagentChangeScreenConfig: returning [1] nxagentChangeScreenConfig: called for screen [0], width [800] height [748] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x55efc5939ee0] nxagentChangeScreenConfig: grabstate [SERVER_UNGRABBED], client [0x55efc5a96170] nxagentChangeScreenConfig: Changing config to 800 x 748 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 205,132 800x748 nxagentChangeScreenConfig: returning [1] nxagentChangeScreenConfig: called for screen [0], width [800] height [785] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x55efc5939ee0] nxagentChangeScreenConfig: grabstate [SERVER_UNGRABBED], client [0x55efc5a96170] nxagentChangeScreenConfig: Changing config to 800 x 785 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 205,132 800x785 nxagentChangeScreenConfig: returning [1] nxagentChangeScreenConfig: called for screen [0], width [800] height [801] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x55efc5939ee0] nxagentChangeScreenConfig: grabstate [SERVER_UNGRABBED], client [0x55efc5a96170] nxagentChangeScreenConfig: Changing config to 800 x 801 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 205,132 800x801 nxagentChangeScreenConfig: returning [1] nxagentChangeScreenConfig: called for screen [0], width [800] height [801] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x55efc5939ee0] nxagentChangeScreenConfig: grabstate [SERVER_UNGRABBED], client [0x55efc5a96170] nxagentChangeScreenConfig: Changing config to 800 x 801 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 205,65 800x801 nxagentChangeScreenConfig: returning [1] nxagentChangeScreenConfig: called for screen [0], width [800] height [801] nxagentChangeScreenConfig: screenInfo.screens[0]->root [0x55efc5939ee0] nxagentChangeScreenConfig: grabstate [SERVER_UNGRABBED], client [0x55efc5a96170] nxagentChangeScreenConfig: Changing config to 800 x 801 nxagentChangeScreenConfig: Xinerama is disabled nxagentChangeScreenConfig: current geometry: 205,132 800x801 nxagentChangeScreenConfig: returning [1] ===============Gnome Classic================

Kees