Enzzo Pessanha Cavallo, thank you for taking the time to report this bug and
helping to make Ubuntu better. Could you please boot into a Ubuntu repository
kernel (not a mainline kernel) and execute the following command, as it will
automatically gather debugging information, in a terminal:
apport-collect 1156525
When reporting bugs in the future please use apport by using 'ubuntu-bug' and
the name of the package affected. You can learn more about this functionality
at https://wiki.ubuntu.com/ReportingBugs.
** Description changed:
Hi all
Im testing Ubuntu 13.04 with kernel 3.8.0-ubuntu on my VPCEG13EB (i3/HD3000).
My notebook have a long-standing bug with backlight: any distro can not
change my backlight by default. I Regulate manually my backlight in
/sys/class/backlight/intel_backlight/brightness(form 0 to 4882). All
distros/kernels/DE regulate the backlight in
/sys/class/acpi_video0/brightness(from 0 to 15). Same kernel flags change from
~/acpi_video0 to ~/sony but still not working.
But it always works on max by default on non-3.8 kernels. On kernel 3.8 when
i boot up works ok, but when I sleep/wakeup my backlight is zero, so i cant see
nothing in screen. Conecting the notebook on my TV and making an "# echo 4882 >
/sys/class/backlight/intel_backlight/brightness" makes everything work fine
again.
- My Arch Linux has the same bug when I try 3.8, in 3.7 everything works ok.
- ---
- ApportVersion: 2.9.1-0ubuntu1
- Architecture: i386
- DistroRelease: Ubuntu 13.04
- InstallationDate: Installed on 2013-03-14 (4 days ago)
- InstallationMedia: Lubuntu 13.04 "Raring Ringtail" - Alpha i386 (20130311.1)
- MarkForUpload: True
- Package: linux (not installed)
- ProcEnviron:
- LANGUAGE=pt_BR:en
- TERM=xterm
- PATH=(custom, no user)
- LANG=pt_BR.UTF-8
- SHELL=/bin/bash
- Tags: raring
- Uname: Linux 3.9.0-030900rc3-generic i686
- UnreportableReason: The running kernel is not an Ubuntu kernel
- UpgradeStatus: No upgrade log present (probably fresh install)
- UserGroups:
- ---
- ApportVersion: 2.9.1-0ubuntu1
- Architecture: i386
- DistroRelease: Ubuntu 13.04
- InstallationDate: Installed on 2013-03-14 (4 days ago)
- InstallationMedia: Lubuntu 13.04 "Raring Ringtail" - Alpha i386 (20130311.1)
- MarkForUpload: True
- Package: linux (not installed)
- ProcEnviron:
- LANGUAGE=pt_BR:en
- TERM=xterm
- PATH=(custom, no user)
- LANG=pt_BR.UTF-8
- SHELL=/bin/bash
- Tags: raring
- Uname: Linux 3.9.0-030900rc3-generic i686
- UnreportableReason: The running kernel is not an Ubuntu kernel
- UpgradeStatus: No upgrade log present (probably fresh install)
- UserGroups:
+ My Arch Linux has the same bug when I try 3.8, in 3.7 everything works
+ ok.
** Tags added: needs-kernel-logs needs-upstream-testing regression-
potential
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
** Changed in: linux (Ubuntu)
Assignee: Enzzo Pessanha Cavallo (souenzzo) => (unassigned)
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https://bugs.launchpad.net/bugs/1156525
Title:
Black screen after wakeup
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