As far as I know, rootless X requires kernel mode setting, which causes all kinds of breakage on my system at least (e. g. suspend-to-ram doesn't work any longer, xvideo breaks, 3D performance is absymal).
Posted Aug 19, 2010 8:45 UTC (Thu) by epa (subscriber, #39769)
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For a moment there I thought 'rootless X' must refer to running the X server without a root window - as commonly done with X servers such as Xming on Microsoft Windows. But you meant 'running the X server as a non-root user'.