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JimGrohn
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Contributor

Slow scrolling of X clients on Centos 7(and 8) guest.

I use "ssh -X" to allow  remote linux machines to display their X applications on the guest linux  X server.

The guest linux is Centos. This worked well on Centos 6.  Starting at Centos 7,  vertical scrolling became slow. If I scrolled up a line, instead of shifting  the image up and paint the new line, it will  repaint of the entire window.    

Looking at the Xorg.log file for the remote Centos 6 and 7,  I notice AIGLX is started on 6, but NOT started on 7.   The description of AIGLX is below and matches what I am seeing.  I assume something in Centos7 HW detection is assuming it cannot run AIGLX. 

Anyone seen this problem, or knows how I can why X thinks it cannot run AIGLX.

FYI - "Accelerate 3D Graphics" is enabled in the fusion settings.  I have tried it on several Macs and 2 versions of OSX and the result is the same.

"Accelerated Indirect GLX ("AIGLX") is an open source project founded by Red Hat and the Fedora community, led by Kristian Høgsberg,[1] to allow accelerated indirect GLX rendering capabilities to the X.Org Server and DRI drivers. This allows remote X clients to get fully hardware accelerated rendering over the GLX protocol; coincidentally, this development was required for OpenGL compositing window managers to function with hardware acceleration."

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