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It seems that dropping the "0001-sna-Let-modestting-glamor-handle-gen9.patch" solves the problem. However, due lack of time, I can't say too much about the long-term stability of this solution. The 20171025 driver was already tested in Fedora >= 27 since October 2017. Please remember that even after 2.99.917-27, intel driver is still disabled by default, because the xserver now defaults to the modesetting driver for all recent GPUs.
SPEC file from "xorg-x11-drv-intel-2.99.917-31.20160929.el7.src.rpm": http://wklej.org/hash/441ad00949e/txt/
Summary: I backported changes from "xorg-x11-drv-intel-2.99.917-34.20171025.el7.src.rpm" to the 20160929 driver and it seems to work, but I can't say too much about the long-term stability of this solution.
(In reply to Tomasz Tomasik from comment #6)
> It seems that dropping the
> "0001-sna-Let-modestting-glamor-handle-gen9.patch" solves the problem.
We have already done this in 7.5, so that's good to hear.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2018:0736