Date: Wed, 12 Sep 2018 01:54:48 +0100 From: Graham Perrin <grahamperrin@gmail.com> To: Pete Wright <pete@nomadlogic.org>, freebsd-current <freebsd-current@freebsd.org> Subject: Re: Suspend, resume, UEFI, CSM, drm-stable-kmod and drm-next-kmod with Radeon HD 7570M Message-ID: <64b8ed0a-0a90-5b70-3288-81a091dde0fd@gmail.com> In-Reply-To: <0aa72278-c17b-0bd7-1f5b-960366890426@nomadlogic.org> References: <93fcf295-1dae-12d4-5530-ef0c55bd8cc2@gmail.com> <0aa72278-c17b-0bd7-1f5b-960366890426@nomadlogic.org>
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On 22/08/2018 17:50, Pete Wright wrote: > > On 8/22/18 2:11 AM, Graham Perrin wrote: >> HP EliteBook 8570p with AMD 'Thames' Radeon HD 7570M. … >> With and without drm-next-kmod: >> if boot is hybrid UEFI with CSM, >> then suspend occurs, but resume fails. No beep, the computer restarts. >> >> debug.acpi.resume_beep=1 >> in /boot/loader.conf for an audible beep. >> >> ---- >> >> Please: might graphics/drm-devel-kmod be better for either the tearing (without CSM) or for suspend? > > not sure this will address this specific issue - but have you tested setting this sysctl knob and seeing if that fixes your resume issues: > hw.acpi.reset_video=1 > > -pete > Thanks again. Briefly: - with CSM - with hw.acpi.reset_video=1 - without using /boot/modules/radeonkms.ko - FreeBSD 12.0-ALPHA2 #2 r337986: Fri Aug 17 22:01:23 BST 2018 Result: - endless beep when resume is attempted. A short press on the power button (around two seconds, not long enough to stop the computer) temporarily silences the beep. ---- <https://lists.freebsd.org/pipermail/freebsd-current/2018-August/070857.html>; there's the additional advice from Johannes Lundberg. Updating the OS etc. now, I'll share test results in due course. * *
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