Acer laptop with Intel HD3000 + nVidia (Optimus), massive issues with S3 suspend and resume (10.0-RELEASE-p2 GENERIC, i915kms etc)

[Jan Kokemüller]

Hi,

 > Like the subject states, laptop's LCD turns off permanently after S3 
resume.

 > Here are the use cases in which this happens.

You could try to rebuild the kernel without the VESA option. For me and 
others this results in usable suspend/resume. I think this is because 
the VESA resume code somehow conflicts with the i915kms resume code that 
restores the backlight, but I'm not 100% sure.

There might be some graphical glitches after resume. I guess the root 
cause of this will only be fixed until the KMS code is updated to Linux 
3.8. In the meantime, there are some workarounds and hacks you can try:

http://lists.freebsd.org/pipermail/freebsd-x11/2013-October/013727.html
http://lists.freebsd.org/pipermail/freebsd-mobile/2014-April/012937.html
http://lists.freebsd.org/pipermail/freebsd-current/2014-May/050261.html

Cheers,
Jan