Christopher,

You can close this bug as it is fixed in 14.04 which I am currently using.
Thank you


Steve

On Fri, Dec 5, 2014 at 12:26 PM, Christopher M. Penalver <
[email protected]> wrote:

> 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 subscribed to the bug
> report.
> 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
>

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https://bugs.launchpad.net/bugs/1175605

Title:
  Monitor Dim to black workaround breaks Power management settings in
  Kubuntu and Ubuntu 13.04

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1175605/+subscriptions

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