[Bug 111909] New: commit c1132367 "Extract GT render sleep (rc6) management" prevents entering s2idle

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111909

            Bug ID: 111909
           Summary: commit c1132367 "Extract GT render sleep (rc6)
                    management" prevents entering s2idle
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: kenny at panix.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: andi.shyti at intel.com,
                    intel-gfx-bugs at lists.freedesktop.org

I've been running the drm-tip for about two weeks now.

I noted that my laptop (HP X360 Spectre 13") has been warm while suspended (and
having even greater power drain than normal under s2idle (which is
unfortunately all I have on this box).

Plugging in my USB-C power meter there is indeed a 100mA extra drain while
suspended, more than just on a vanilla Linus tip kernel.

After bisecting, I narrowed it down to
c113236718e89561f309705f1a78126b3df93a21; if I cut a kernel with drm-tip to
just before that commit it does not have this issue (my initial quick attempt
at fixing up the conflicts while trying to revert this commit crashes the i915
driver on resume, and I didn't go further in trying to fix that).

Please let me know if there's any additional information you'd need.

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