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  1. Bug #1069707
  2. Comment #26

Comment 26 for bug 1069707

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Salvatore Cristofaro (cristofaro) wrote : Re: Suspend doesn't work after dist-upgrade to Quantal 12.10

Hi, thank you for your fast reply.

I tried to remove both kernel parameters (acpi_backlight=vendor and acpi_sleep=nonvs) but problem persist. (see attached file).

In 12.04 (and in 11.10) I used a patched sony-laptop.ko module (please refer to http://www.absence.it/vaio-acpi/source/patches/ and http://code.google.com/p/vaio-f11-linux/issues/detail?id=6 ). It improved the management of energy savings through better driver support for backlight and environment light sensor with my Vaio. I believe that I introduced the kernel parameter acpi_backlight=vendor after applying this patch or, however, to improve support to brightness.
Just for your knowledge, after upgraded to 12.10, I could not apply this patch to current kernel (was incompatible with 3.5: patching result in a reject file).

The acpi_sleep=nonvs kernel parameter was not present when i used12.04.
I introduced it during last days after reading this post http://<email address hidden>/msg36825.html and other similar forum discussion, trying to fix the suspend feature, without success.

Thank you for support
Salvatore