Re: Major X issue - Two desktop session open - Cannot switch

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On 30/06/16 18:28, Robin Laing wrote:
Hello,

I have a major issue with the latest updates.  I cannot have two desktop
sessions open.  Until I updated yesterday, I would run two sessions
using sddm and switching sessions.

I cannot do this now.  If I create a new session, it doesn't close the
programs, it removes them from the desktop though.  If Firefox is open,
I will change sessions and the first session Firefox is still running
but nothing in the dialogs on any screen.  I have to open an terminal
and kill it to start again.

Now, if I go back to the first session, the second session dies.  It
doesn't exist anymore.  Applications are still running but no desktop.

In both sessions I have .xsession-errors


shader compilation failed:
""
QOpenGLShaderProgram::uniformLocation( qt_Matrix ): shader program is
not linked
QOpenGLShaderProgram::uniformLocation( opacity ): shader program is not
linked
QOpenGLShaderProgram: could not create shader program
QOpenGLShader: could not create shader
QOpenGLShader: could not create shader
shader compilation failed:
""
QOpenGLShaderProgram::uniformLocation( matrix ): shader program is not
linked
QOpenGLShaderProgram::uniformLocation( color ): shader program is not
linked
QOpenGLShaderProgram::uniformLocation( textureScale ): shader program is
not linked
QOpenGLShaderProgram::uniformLocation( dpr ): shader program is not linked
QOpenGLShaderProgram: could not create shader program
QOpenGLShader: could not create shader
QOpenGLShader: could not create shader

I am using the rpmfusion version of nVidia driver as I need the features
of my card that are not supported with the open source driver.


In the past I have had to delete my .kde and other config files to get
KDE to work properly again.  Do I have to do that now?  Was there some
configuration file location changes again?

As this machine is used by two people, I need to have two sessions running.

Robin
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For some reason, this happened twice but not again.  It was strange.

All the .xsession-errors that I reported are not present now.

I didn't do a reboot either.

Robin

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