Date: Sat, 03 Dec 2022 16:13:37 +1100 From: Ian Smith <smithi@nimnet.asn.au> To: Polytropon <freebsd@edvax.de>,Daniel Tameling <tamelingdaniel@gmail.com> Cc: questions@FreeBSD.org Subject: Re: Thinkpad T61 display won't wake from hibernate Message-ID: <317841A1-A8EA-4710-BC99-3C6C85B84352@nimnet.asn.au> In-Reply-To: <20221130122113.dc3f3b41.freebsd@edvax.de> References: <CAEz5-Sx7cui2%2BdafyETtmMy4K8jcSdeYKpCZ2AW2LyxXXLsmmQ@mail.gmail.com> <CADqw_gKdRFm6OZxaxXGhp%2BhUtKnNP8CsejVXyyhhnhG8BV%2B=Hg@mail.gmail.com> <CAEz5-Sz-2rR6dSTX9HgHULVd8NWS1iSxgigD-_57rFe8Pif=NA@mail.gmail.com> <Y4bvh2MM0AwCMZ97@mail.gmail.com> <20221130122113.dc3f3b41.freebsd@edvax.de>
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On 30 November 2022 10:21:13 pm AEDT, Polytropon <freebsd@edvax=2Ede> wrote= : > On Wed, 30 Nov 2022 06:52:07 +0100, Daniel Tameling wrote: > > I can't really help you because I never had to debug suspend/resume > > issues, but are you aware of https://wiki=2Efreebsd=2Eorg/SuspendResu= me That's a good resource to start with=2E > > The list https://wiki=2Efreebsd=2Eorg/Laptops contains one T61 and sa= ys > > Suspend / Resume is working, but it has some notes about things > that > > interfer with it (https://wiki=2Efreebsd=2Eorg/Laptops/Thinkpad_T61)= =2E Further down there's also a Thinkpad_X61s, basically the same hardware ser= ies in 12" form, same as the later T4xx vs X2xx models, the 4 for 14", 2 f= or 12" and 5xx for 15"=2E https://en=2Em=2Ewikipedia=2Eorg/wiki/List_of_Intel_graphics_processing_un= its https://wiki=2Efreebsd=2Eorg/Graphics https://wiki=2Efreebsd=2Eorg/Graphics/Intel-GPU-Matrix All have some clues, but indicate a good deal of confusion especially over= time=2E At one time there were drm-kmod, drm-next-kmod, drm-devel-kmod an= d drm-legacy-kmod, but such terms become meaningless outside of their timeframe, and I'm yet to find any com= prehensive, up to date docs that cover old through to latest systems, espec= ially regarding suspend/resume=2E </rant> > Also note that some BIOSes have a setting that is > something like "Repost video on S3 resume", you > could check for that, too=2E Also sysctl hw=2Eacpi=2Ereset_video, 'Call the VESA reset BIOS vector on t= he resume path', which may apply to some laptops as old as the T61=2E Bottom line with 13=2E1 and its present drm-kmod is that without the exact= ly right i915kms=2Eko, successful resume may remain elusive=2E=20 Happy hunting to all, cheers, Ian
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