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Created attachment 1065328 [details]
KDE shutdown dialog

Description of problem: 

Background on logout/reboot/shutdown dialog screen is black and slightly scrambled

journalctl logs multiple instances of this:

Aug 20 17:46:20 localhost.localdomain /etc/gdm/Xsession[2682]: X Error: BadDrawable (invalid Pixmap or Window parameter) 9
Aug 20 17:46:20 localhost.localdomain /etc/gdm/Xsession[2682]: Resource id:  0x0
Aug 20 17:46:20 localhost.localdomain /etc/gdm/Xsession[2682]: Major opcode: 72 (X_PutImage)


Actual results:

Please see attached screenshot


Expected results:

Background should be transparent and greyscale

I forgot to note this is not hardware specific. Issue happens on virtual and real hardware.

Will look into this for RHEL 7.3, because it's quite too late for 7.2 given this is not a critical issue.

Cannot reproduce with RHEL 7.7.