Re: kern/50781: set hw.acpi.sleep.vbios=0 when kernel display driver handles suspend/resume (e.g., drmkms)

[David Holland <dholland-bugs%netbsd.org@localhost>]

The following reply was made to PR kern/50781; it has been noted by GNATS.

From: David Holland <dholland-bugs%netbsd.org@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/50781: set hw.acpi.sleep.vbios=0 when kernel display driver
 handles suspend/resume (e.g., drmkms)
Date: Sun, 12 Jun 2016 23:15:52 +0000

 not sent to gnats (with many mailers you have to explicitly fix the
 To: line if replying to your own comment)
 
    ------
 
 From: Martin Husemann <martin%duskware.de@localhost>
 To: kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost,
 	riastradh%NetBSD.org@localhost
 Subject: Re: kern/50781: set hw.acpi.sleep.vbios=0 when kernel display driver
 	handles suspend/resume (e.g., drmkms)
 Date: Mon, 8 Feb 2016 09:48:21 +0100
 
 On Mon, Feb 08, 2016 at 08:45:01AM +0000, Martin Husemann wrote:
 >  At framebuffer driver attach time, set it to 0, then modify the sysctl to
 >  be read-only?
 
 Actually slightly more tricky - make it a MD utility function and provide a MI
 macro to call it (overriden by architectures that support "vbios").
 
 The MI version would do nothing, the MD version call the utility function
 and modify the sysctl.
 
 Martin