Windows don't repaint correctly over VNC connection

Originator:craig.hockenberry
Number:rdar://19382113 Date Originated:1/5/2015
Status:Open Resolved:
Product:OS X Product Version:10.10.1
Classification:Serious Bug Reproducible:Always
 
Summary:
Windows don't repaint correctly over a VNC connection. Portions of windows don't redraw and pieces of other windows are left around on screen.

Steps to Reproduce:
1. Connect to a system running 10.10.1 (14B25)
2. Use it for awhile

Expected Results:
The windows should repaint correctly

Actual Results:
Eventually the windows will fail to repaint.

Version:
10.10.1 (14B25)

Notes:
A workaround is to disable beam sync in Quartz Debug. After the beam sync is disabled, the windows repaint correctly.

Note that I can't take a screenshot of this because doing so causes all the corrupted windows to repaint.

This problem looks like the same thing that happens when using a virtual machine (like VMware) on Yosemite: https://derflounder.wordpress.com/2014/12/13/improving-yosemite-vm-performance-in-vmware-fusion/

Both my wife and I do tech support for the other members of our family using Screen Sharing. Until this bug gets fixed, no one in our family will be updating to Yosemite.

Comments


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