catseye2500, thank you for reporting this bug to Ubuntu. Raring reached EOL on January 27, 2014. See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases
Is this reproducible in the latest release of Ubuntu via http://cdimage.ubuntu.com/daily-live/current/ ? If so, please execute the following via a terminal in order for the necessary debugging information to be attached: apport-collect 1175605 ** Package changed: pm-utils (Ubuntu) => linux (Ubuntu) ** Changed in: linux (Ubuntu) Importance: Undecided => Low ** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to pm-utils in Ubuntu. https://bugs.launchpad.net/bugs/1175605 Title: Monitor Dim to black workaround breaks Power management settings in Kubuntu and Ubuntu 13.04 Status in linux package in Ubuntu: Incomplete Bug description: System: Acer Aspire V3-771G-9456 Intel I7 Core-3632QM 2.2GHZ 6 gig memory 120GB OGZ Solid State Drive Nvidia Optimus-Geforce GT 640M with 2GB dedicated video memory Kubuntu 12.10 Kernel 3.5.0-28 KDE 4.10.2 Kubuntu 13.04 Kernel 3.8.0-18 KDE 4.10.2 During boot up of live CD and after installation of both Kubuntu 12.10 and 13.04 my screen dims to black. I had to manually using the keyboard adjust the brightness for my screen to see. I found a solution to this by adding the following to my grub menu: "acpi_backlight=vendor" so it looks like this in the menu: GRUB_DEFAULT=0 GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=0 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" GRUB_CMDLINE_LINUX="acpi_backlight=vendor" On both versions this allows me to boot up and the screen does not dim to black. The issue is for some reason, in Kubuntu 13.04 it breaks KDE power management settings so I can not dim the screen, suspend, or adjust the brightness of the monitor. When I take the acpi_backlight=vendor out of the grub menu the power management settings work fine in Kubuntu 13.04. I just have to manually adjust the brightness to login. The odd thing is the above configurations works flawlessly in Kubuntu 12.10. I have the “acpi_backlight=vendor” in my grub menu and the power management setting work just fine. BTW: I also did a fresh Install of Ubuntu 13.04 and it did the same as Kubuntu 13.04. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1175605/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp