Kai Jauch, this bug report is being closed due to your last comment
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/540134/comments/15
regarding this being fixed with an update. For future reference you can
manage the status of your own bugs by clicking on the current status in
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** Changed in: linux
Importance: Unknown => Medium
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https://bugs.launchpad.net/bugs/540134
Title:
Screen backlight doesn't come on again after opening the lid
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** Changed in: linux
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/540134
Title:
Screen backlight doesn't come on again after opening the lid
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** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Screen backlight doesn't come on again after opening the lid
https://bugs.launchpad.net/bugs/540134
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I also couldn't reproduce the problem in 2.6.32-19 from Lucid, it is
fixed there.
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Screen backlight doesn't come on again after opening the lid
https://bugs.launchpad.net/bugs/540134
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I just tested version 2.6.34-999.201004021325 from the mainline builds,
the problem is fixed there. The backlight goes off when I close the lid
and comes back on when I open it.
** Tags removed: needs-upstream-testing
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Screen backlight doesn't come on again after opening the lid
https://bugs.l
Hi Kai,
If you could also please test the latest upstream kernel available that would
be great. It will allow additional upstream developers to examine the issue.
Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the
upstream kernel, please remove the 'needs-upstream
This affects HP 2510p as well. Switching to another VT restores the
display, so switching to VT1 and then back to Xorg is a usable
workaround.
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Screen backlight doesn't come on again after opening the lid
https://bugs.launchpad.net/bugs/540134
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I've already done this for bug #535640 the logs are attached there.
http://launchpadlibrarian.net/41121035/pre.tar.gz
http://launchpadlibrarian.net/41121037/open.tar.gz
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Screen backlight doesn't come on again after opening the lid
https://bugs.launchpad.net/bugs/540134
You received this bug not
Can you add the boot option of "drm.debug=0x04" and do the following test?
1. get the output of "cat /proc/acpi/button/LID/*/state", dmesg,
intel_reg_dumper before close the LID
2. close the LID
3. Open the LID
4. Please login the system by using ssh and get the output of "
** Changed in: linux
Status: Unknown => Confirmed
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Screen backlight doesn't come on again after opening the lid
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Well, I didn't want to say drm drivers, but xorg drivers.
I've already tested the drm-next packages without success.
But, we really need to fix bug #535640 before doing additional testing here.
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Screen backlight doesn't come on again after opening the lid
https://bugs.launchpad.net/bugs/540134
@Nicolò Chieffo:
Your comment about the latest intel drivers jogged my memory. There's
also the drm-intel-next kernels at the mainline ppa page that would be
useful to try it. It contains changes that haven't hit Linus' tree yet.
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Screen backlight doesn't come on again after opening the lid
ht
Confirmed, filed at http://bugzilla.kernel.org/show_bug.cgi?id=15553
** Bug watch added: Linux Kernel Bug Tracker #15553
http://bugzilla.kernel.org/show_bug.cgi?id=15553
** Also affects: linux via
http://bugzilla.kernel.org/show_bug.cgi?id=15553
Importance: Unknown
Status: Unknown
Using mainline 2.6.34rc1 still has the same problem
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Screen backlight doesn't come on again after opening the lid
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Also note that this bug might be solved when solving this:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
intel/+bug/535640
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Screen backlight doesn't come on again after opening the lid
https://bugs.launchpad.net/bugs/540134
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Maybe also using the latest intel drivers could help?
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Screen backlight doesn't come on again after opening the lid
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@Kai:
Please test the latest 2.6.34 mainline kernel at
http://kernel.ubuntu.com/~kernel-ppa/mainline/ to see if there's better
behavior there. If not, I suggest opening a bug at bugzilla.kernel.org
so upstream is aware of the issue. Please note the bug here if you do
open one.
Thanks
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Just to be clear, the 2.6.32-16 kernel does contain the patch that fixed
the 2.6.32-15 kernel, but it does not appear to be the complete fix
anymore.
** Description changed:
The backlight of the laptop display doesn't come back on after closing
and opening the lid on a Dell Latitude E6400.
** Attachment added: "AlsaDevices.txt"
http://launchpadlibrarian.net/41109718/AlsaDevices.txt
** Attachment added: "AplayDevices.txt"
http://launchpadlibrarian.net/41109719/AplayDevices.txt
** Attachment added: "BootDmesg.txt"
http://launchpadlibrarian.net/41109721/BootDmesg.txt
** Att
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