[Bug 59785] [dual-gpu regression] Display shuts off when switching to discrete graphics card

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=59785

--- Comment #24 from Jani Nikula <jani.nikula at intel.com> ---
Created attachment 82989
  --> https://bugs.freedesktop.org/attachment.cgi?id=82989&action=edit
drm/i915: do not disable backlight on vgaswitcheroo switch off

All, please try the attached patch.

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