Description of problem: I use AccelMethod UXA in intel config, as SNA causes rendering issues in xterm. This was working till 4.13.15-300.fc27.x86_64. But after the recent upgrade to 4.14.8-300.fc27.x86_64, windows are not rendered, and I only get a black region for any application (chrome, vlc, gnome-tweak-tool etc.,). Correspondingly, ~/.local/share/xorg/Xorg.0.log says: (EE) intel(0): Failed to submit batch buffer, expect rendering corruption: Invalid agument. However, if I try SNA instead, windows are rendered correctly (though the old problem with xterm, for which I had switched to UXA in the first place, is still present.) Workaround: Using the older kernel 4.13.15-300.fc27.x86_64.
Glad to say this issue could not be reproduced with the kernel-vanilla-mainline kernel-4.17.0-0.rc7.git0.1.vanilla.knurd.1.fc27.x86_84.rpm. So may be it is just a matter of time before the fix arrives (if it hasn't arelady arrived) in Fedora and CentOS.
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