[PC-BSD Testing] Desktop system won't wake up from sleep mode
kris at pcbsd.org
Wed Feb 15 08:55:33 PST 2012
On 02/13/2012 13:18, Jeff wrote:
> I have PCBSD 9 (64 bit) on a home built Asus P6T board and a Radeon
> HD 4850 video card, and a generic Samsung digital monitor (2043 SWX Plus).
> When trying to wake it up from sleep mode, it appears as if the
> computer wakes up, but the monitor won't. Note that the monitor was
> not identified during installation of the OS.
> I tried different video drivers, but still no workee.
> Even tried disabling powerd on someone's advice. No affect.
> Any suggestions how to get sleep to work? Hibernation doesn't work
> FreeBSD has an extensive section in the handbook detailing the debug
> process for ACPI issues, but it looks daunting so I thought I'd ask
> here first.
> BTW, what value does powerd have on a desktop system? Is it there
> just to spin down disks not being used? Seems from rc.conf that it's
> manipulating CPU speed:
> # powerd: adaptive speed while on AC power, adaptive while on battery
> powerd_flags="-a hiadaptive -b adaptive" # set CPU frequency
> If it doesn't spin the disk down, does some other part of PCBSD do
> that? I have a backup disk that I rarely access and would prefer that
> it spin down when not being used. I haven't looked in the BIOS to see
> if it can be set there, as yet.
> Testing mailing list
> Testing at lists.pcbsd.org
Try using "xset -dpms" to prevent the monitor from going blank and not
coming back up :)
If that works, you can put it in ~/.xprofile
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