Date: Wed, 22 Aug 2018 09:50:01 -0700 From: Pete Wright <pete@nomadlogic.org> To: Graham Perrin <grahamperrin@gmail.com>, 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: <0aa72278-c17b-0bd7-1f5b-960366890426@nomadlogic.org> In-Reply-To: <93fcf295-1dae-12d4-5530-ef0c55bd8cc2@gmail.com> References: <93fcf295-1dae-12d4-5530-ef0c55bd8cc2@gmail.com>
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On 8/22/18 2:11 AM, Graham Perrin wrote: > HP EliteBook 8570p with AMD 'Thames' Radeon HD 7570M. > > If neither drm-stable-kmod nor drm-next-kmod is used – commenting out > # kld_list="/boot/modules/radeonkms.ko" > in /etc/rc.conf > and if boot is pure UEFI, without CSM, > then the notebook can reliably resume from suspend. There's a > distinctive single amber pulse of the (normally blue) radio button > before suspend occurs. However: > > - without CSM, most of the startup routine is illegible, 'torn' > > – for example, I can't see what's typed when I boot to single user mode. > > ---- > > If either drm-stable-kmod or drm-next-kmod is used > and if boot is pure UEFI, > then the notebook can not suspend. No amber pulse of the radio button. > > 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 -- Pete Wright pete@nomadlogic.org @nomadlogicLA
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