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Description of problem: Fight over mouse, between X-servers and VNC, might lead to instability. Sometimes an X crashes. Version-Release number of selected component (if applicable): How reproducible: easy, everytime Steps to Reproduce: 1. On Host1, login in to main x-server, open a application or something like a gnome-terminal for easy identification, make sure vino is enabled 2. On Host1, Ctrl-Alt-2 to a conosle, login 3. On Host1, startx -- :1 A second X server starts on '7', start some application, play around 4. from a remote computer VNC to :1 5. move mouse on remote cursor, everything works fine play around with mouse, observe that things in sync between VNC client and X-server-2 6. On Host1, With VNC active, Ctrl-Alt-1 to the other first X-server note that 7. On Host1, the cursor on the first X server will be stuck Things may fall apart in various ways here. Actual results: instability Expected results: stability Speculations: There is a local mouse on Host1. There are two X-servers and 1 VNC client When the remote VNC client connects X-server-2, and the active console on Host-1 is X-server-2, the remote mouse and the local mouse control the mouse pointer. When Ctrl-Alt-1 is pressed on Host 1, local mouse must be detached from X-server-2 and attached to X-server-1 Either the vino backend is grabbing the mouse pointers of both X-servers or the local mouse is not properly attached detached from the X servers. Additional info: An additional test case would be two remote VNC clients connecting to both X-servers, and locally switching between the two consoles on Host-1.
Related Upstream bug Vino doesn't handle multiple xservers properly. https://bugzilla.gnome.org/show_bug.cgi?id=598796
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