Wait -- that's incomplete. Originally I deleted all the non-Intel
sections, and that worked. Looking for a solution easier for others to
follow, I tried just removing the quirks lines, and thought it worked,
but it didn't.
My solution, in short:
1. In /boot/grub/menu.lst
add i915.modeset=0 nomodeset to the defoptions line. This disables the new
kernel mode-setting (KMS):
# defoptions=quiet splash i915.modeset=0 nomodeset
1b) Save and run update-grub.
2. In /usr/lib/pm-utils/sleep.d/98smart-kernel-video
delete all references to quirk options your machine needs to suspend.
In my case, three quirks are in the section have_smart_intel:
--quirk-dpms-on --quirk-vbe-post --quirk-vbestate-restore
and two are in the section remove_all_video_quirks:
--quirk-s3-bios --quirk-s3-mode
3) Save and reboot.
--
pm-suspend with quirks does not restore backlight anymore
https://bugs.launchpad.net/bugs/417599
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