On Tue, 14 Mar 2017, Eric Blau <eblau@xxxxxxxxx> wrote: > That's funny. I have a MacBook Pro 12,1 from late 2015. Hibernate > failed for me in 4.9.6 through 4.9.8 (possibly earlier as well, I do > no recall) without the patch. The patch you reference fixed my problem > and apparently many others based on the bug reports: > > https://bugs.freedesktop.org/show_bug.cgi?id=96526 > > I applied the patch myself in 4.9.6 through 4.9.8 and hibernate works > for me. I have run vanilla 4.9.9 and 4.10.1 and in both hibernate > works. So I'm quite surprised commit f2a0409a08502d64fbe3990354dff5902b08d2fb Author: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> Date: Wed Sep 21 14:51:08 2016 +0100 drm/i915/execlists: Reset RING registers upon resume commit bafb2f7d4755bf1571bd5e9a03b97f3fc4fe69ae upstream. ended up in v4.9.9 considering that the upstream commit is not annotated for stable, it has no Fixes: tags, and I can't find any backport requests or even notifications for it in my mails. (Admittedly I'm not subscribed on stable@, but I'd expect our lists, maintainers or developers be Cc'd.) BR, Jani. > > Regards, > Eric > > On Mon, Mar 13, 2017 at 6:23 PM, Damian Dominik Martinez Dreyer > <damian@xxxxxxxxxxx> wrote: >> I am writing regarding this kernel patch: https://git.kernel.org/pub/sc >> m/linux/kernel/git/stable/stable-queue.git/tree/releases/4.9.9/drm- >> i915-execlists-reset-ring-registers-upon-resume.patch . >> >> I have identified this by bisect to be the cause of a suspend and >> resume issue. Please see https://github.com/kxv/linux49.9 for the >> bisect history. >> >> After this change, a Laptop (HP Spectre x360) with Intel HD Graphics >> 520 will wake up from suspend to a blank screen. >> >> Please also see this thread on the manjaro linux forum: https://forum.m >> anjaro.org/t/linux-4-9-9-breaks-hibernation-4-9-8-works/17499 . >> >> >> Best regards >> Damian Dominik Martinez Dreyer > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Jani Nikula, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
