Public bug reported:
Customer using Lenovo P50 (Skylake) and Surface Book (Skylake) laptops
tried to start unity in a guest VM on Hyper-V. Kernel 4.4.0-31 started
as expected, Hyper-V drivers loaded as expected including the
framebuffer driver, plenty of memory and vCPUs allocated, but x.org
fails with xf86EnableIOPorts: failed to set IOPL for I/O (Operation not
permitted), resulting in "no screens found".
However, when customer used KDE (kubuntu 16.04 with similar kernel) on
these same systems got a UI as expected. Customer also has no issues on
non-skylake laptop.
No unexpected messages seen in dmesg and syslog.
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1605798
Title:
Unity + Skylake + Hyper-V xf86EnableIOPorts: failed to set IOPL for
I/O (Operation not permitted)
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