Date: Thu, 05 Sep 2013 13:59:57 -0400 From: Jung-uk Kim <jkim@FreeBSD.org> To: Bengt Ahlgren <bengta@sics.se> Cc: Laura Marie Feeney <lmfeeney@sics.se>, freebsd-acpi@freebsd.org, Gleb Smirnoff <glebius@freebsd.org>, "Sergey A. Osokin" <osa@freebsd.org>, Ganael LAPLANCHE <ganael.laplanche@martymac.org> Subject: Re: suspend/resume on Lenovo X1 (regression from reports on wiki) Message-ID: <5228C69D.9070801@FreeBSD.org> In-Reply-To: <uh7eh93r7z9.fsf@P142.sics.se> References: <521D03AE.3050709@sics.se> <CAJ-VmokcQOhAE6y_=J1uzPHneSF%2BjYSpdo%2Bwdf7Gd0h36pRHwQ@mail.gmail.com> <20130830145102.GG32399@FreeBSD.org> <201308301153.23184.jhb@freebsd.org> <20130905062730.M86390@martymac.org> <uh7eh93r7z9.fsf@P142.sics.se>
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 2013-09-05 04:24:58 -0400, Bengt Ahlgren wrote: > "Ganael LAPLANCHE" <ganael.laplanche@martymac.org> writes: > >> On Fri, 30 Aug 2013 11:53:22 -0400, John Baldwin wrote >> >>> I just removed VESA from my kernel on an X220 and it now >>> suspends and resumes great in X. I don't notice any slowdown, >>> but I'm using a very simple tiling window manager (i3wm). >> >> Great, I can confirm that suspend/resume also works on my X220 >> with this trick ! >> >> I had once opened a PR for that problem and I had managed to >> track the change that, at that time, broke suspend/resume : >> >> http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/174504 >> >> I don't know how it relates to VESA (the change does not seem to >> be related to VESA), but it might help ? > > I believe this (the PR) is a completely different issue, since you > write "resume make the computer hang". The nooptions VESA fixed > wedging of Intel/KMS graphics _after_ resume. There have been many > other changes since r231797 (15 feb 2012). Correct. r231797 had an issue but it was quickly fixed, I think, and it was completely unrelated to VESA. > But nice that it works for you too! Unfortunately, many people think that no video == hang because they cannot see anything on their screen/panel. Moreover, I realized that more users are now complaining about suspend/resume problems with DRM/KMS, which is not directly related to ACPI. - From lots of responses I gathered from users and developers yesterday, I can definitely say that i915kms.ko does not cooperatively work with syscons(4) and acpi_video(4). Basically, it was not a priority at the time of porting according to the author. I am quite sure radeonkms.ko has similar problems. FYI... Jung-uk Kim * PS: https://wiki.freebsd.org/SuspendResume needs more love, I guess. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.21 (FreeBSD) iQEcBAEBAgAGBQJSKMadAAoJECXpabHZMqHOvpMH/0RVq4KZCTDZqsxOibrIY9/9 INNEZXsVWP+Y8+BQacXP3x45eUOGVKa2IGiDo/O7Oediqh/DIhWa8pqonzJ474qY UadV+SQTjQE1EDUcjWmKnAY4OT0dHiN6eAIUv5o+dnFOxb6HupQ2hTGziReQoupS QE9YgwUVU5yOlGZXFbhq2RHvqT2Bi52dHC1qP2waVOlghNY7PIbYMTwQ4X6S4fGC Fjgjvx4tUU4EhjWuaK8mH0t/gCsUjpRico7YmYVVb2N5hu9SrojGPsIgGLaD1Aqi 4Nkmd59Asu+NBR0A22c7UAcoRpP2aJ65q/MU8CdRp/FOTE+W2LLlsXy2JIiKCBk= =Pf+z -----END PGP SIGNATURE-----
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