8.1-RELEASE: snd_hda works as module only, suspend/resume leaves
stefan at freebsd.org
Tue Nov 16 19:06:03 UTC 2010
Bruce Cran, 16.11.10, 15:44h CET:
> On Monday 15 November 2010 09:37:09 Stefan Walter wrote:
> > Suspend To RAM (S3) works by using "acpiconf -s 3", and pushing the power
> > button wakes the system up again. Everything seems to work, only the LCD
> > monitor remains off. (There also seem to be occasional cases in which the
> > keyboard doesn't work any more, but I haven't really looked at that, yet.
> > Usually, the system comes back up properly.) Loading dpms(4) doesn't seem
> > to make a difference. The only way to turn the display on again seems to
> > be typing "shutdown -r now" blindly.
> What graphics card do you have? If it's nVidia, try building the driver with
> ACPI_PM enabled and running "acpiconf -s3" from X11. That boots the video chip
> up on my laptop at least - though it seems some corruption occurs because I've
> had some odd panics afterwards in the fs and vm subsystems, and attempting to
> suspend for a second time results in the system rebooting instead.
It's an ATI Radeon HD 4200 integrated on the mainboard, using
x11-drivers/xf86-video-ati. It now works from the console with
hw.acpi.reset_video=1. From within X11, it doesn't.
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