[Bug 105198] LG 5K Ultrafine display (tiled DP) is not detected correctly

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105198

--- Comment #18 from Henry de Valence <hdevalence at hdevalence.ca> ---
Is there a possible reason why applying that patch would cause *increased*
display corruption?

I guess I am comparing 4.16.0-rc3-sst-tile-patch (drm-tip+patch) to
4.15.6-300.fc27.x86_64 (the Fedora kernel), so maybe I should test drm-tip
without the patch to see if changes between 4.15 and drm-tip are the cause.  On
the stock kernel, I get offset displays, as in the photo of the other bug.

Setting up an xrandr monitor doesn't seem to make a difference.

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