Comment 19 for bug 1562219

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Ubfan (ubfan1) wrote :

Ubuntu 16.04, Nvidia Quadro 1000m, #14 allow the X server to run, applications may be launched (xterm, then xclock) and they appear in ps, keyboard input to the xterm works, but the display is totally black. No errors are in the ~/.local/share/xorg/Xorg.1.log file (a failure does show:
xf86EnableIOPorts: failed to set IOPL for I/O (Operation not permitted)
but that appears in the working :0 display log also. Running as root has same result, black display on the vt. There may be several issues here.