Have managed to get round this problem by modifying grub as follows: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
to GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux acpi_backlight=vendor" -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1173059 Title: Ubuntu 13.04 boots to dark screen on HP G6 laptop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1173059/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
