[Bug 88797] i915 driver isn't used for Broadwell-U GPU in Lenovo Helix 2

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88797

--- Comment #14 from David Lynam <david.lynam at redbrick.dcu.ie> ---
This bug is affecting me, too, on a third-generation Lenovo X1 Carbon.

When GDM under X starts, it is not using HW acceleration and seems to be stuck
with llvmpipe if I continue to use a pure X session.

If I log into GNOME with Wayland, HW acceleration starts to work and glxinfo
will give me this string: OpenGL renderer string: Mesa DRI Intel(R) HD Graphics
5500 (Broadwell GT2)

I don't think I have any problems with ACPI and my kernel has the i915 module
loaded.

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