Ubuntu
hal-info package

  1. Bug #415023
  2. Comment #117

Comment 117 for bug 415023

Revision history for this message
mp459 (mickey-srtdata) wrote :

I used the nomodeset fix above; it seems to work with 4 levels of brightness when adjusting using the fn keys. (I don't remember if 9.4 had 4 or 8 levels of brightness, but I'm leaning towards 4).

FWIW, the workaround is outlined in the release notes here:
http://www.ubuntu.com/getubuntu/releasenotes/910#No%20Xv%20support%20for%20Intel%2082852/855GM%20video%20chips%20with%20KMS

"for GRUB 2: edit /etc/default/grub and add nomodeset to GRUB_CMDLINE_LINUX, then run sudo update-grub.
for GRUB 1: edit /boot/grub/menu.lst and add nomodeset to the line beginning with # kopt=, then run sudo update-grub"

I've verified that flickering does not recur after sleep, and that display auto-dims when on battery power.