Post upgrade 18.09 to 19.04 switching to xrender was necessary

[kernelbasher]

Following the upgrade at login and after I noticed graphical flicking
Switching to xrender solved it for me

[FONT=monospace][COLOR=#5454FF][B]Graphics:  Device-1:[/B][/COLOR] Intel UHD Graphics 620 [COLOR=#5454FF][B]driver:[/B][/COLOR] i915 [COLOR=#5454FF][B]v:[/B][/COLOR] kernel  
          [COLOR=#5454FF][B]Display:[/B][/COLOR] x11 [COLOR=#5454FF][B]server:[/B][/COLOR] X.Org 1.20.4 [COLOR=#5454FF][B]driver:[/B][/COLOR] modesetting [COLOR=#5454FF][B]unloaded:[/B][/COLOR] fbdev,vesa [COLOR=#5454FF][B]resolution:[/B][/COLOR] 1920x1080~60Hz  
          [COLOR=#5454FF][B]OpenGL:[/B][/COLOR] [COLOR=#5454FF][B]renderer:[/B][/COLOR] Mesa DRI Intel UHD Graphics 620 (Kabylake GT2) [COLOR=#5454FF][B]v:[/B][/COLOR] 4.5 Mesa 19.0.2 
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