I have prepared a PPA test kernel for Ubuntu 12.04 (Precise) which
includes experimental patches that might fix these "inverted backlight
brightness" or "backlight off at startup" problems, for laptops with
Intel GPU's (despite the name of the PPA, rest assured that the
brightness control fixes are
[Expired for Ubuntu because there has been no activity for 60 days.]
** Changed in: ubuntu
Status: Incomplete => Expired
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Title:
screen br
Nope. I still have this issue after installing Ubuntu 12.04 Beta 1.
Latest updates.
** Changed in: ubuntu
Status: Fix Committed => Incomplete
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Indeed, the 12.04 beta 1 (updated) works on my netbook HP Mini.
I've taken the liberty of marking the bug as Fix Committed.
** Changed in: ubuntu
Status: Confirmed => Fix Committed
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Yes, the fix in the "inverted-brightness" PPA is included in the 12.04
(Precise) kernel.
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Title:
screen brightness is inverted
To manage notifica
Using Kamal Mostafa's kernel, the brightness behaves normally on my HP
Mini, whereas with the latest mainstream kernel update, the bug still
existed.
so... does that mean your fix will wend its way into 12.04?
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This bug has been reported in association with other bug reports also;
marking Confirmed.
I have prepared a PPA test kernel for Ubuntu 11.10 (Oneiric) including a
patch which might address the "inverted backlight brightness" problem:
https://launchpad.net/~kamalmostafa/+archive/inverted-backl
** Attachment added: "dmidecode"
https://bugs.launchpad.net/ubuntu/+bug/842459/+attachment/2601765/+files/dmidecode.txt
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Title:
screen brightn
** Attachment added: "acpi tarball"
https://bugs.launchpad.net/ubuntu/+bug/842459/+attachment/2601766/+files/acpi.tar.bz
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Title:
screen bright
** Attachment added: "uname"
https://bugs.launchpad.net/ubuntu/+bug/842459/+attachment/2601762/+files/uname.txt
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Title:
screen brightness is i
** Attachment added: "kern.log"
https://bugs.launchpad.net/ubuntu/+bug/842459/+attachment/2601764/+files/kern.log
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Title:
screen brightness is
** Attachment added: "lscpi"
https://bugs.launchpad.net/ubuntu/+bug/842459/+attachment/2601763/+files/lspci.txt
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Title:
screen brightness is i
I can confirm this on Thinkpad T410 with ubuntu 11.10. The way it's
happening with me is:
1. Set manually the preferred brightness.
2. Wait some time (usually about 3 secs).
3. press a key or move mouse.
4. Screen goes to full brightness.
I have the power plugged in. This is naturally very annoyi
I have seen this too and the behavior seems to have changed recently.
Intuitively I noticed something. If I turn the brightness all the way
down I see something like what you are referring to. If I leave the
keyboard idle, the screen goes to a brighter setting (but not the
brightest). If I turn th
** Attachment added: "uname.txt"
https://bugs.launchpad.net/ubuntu/+bug/842459/+attachment/2390650/+files/uname.txt
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Title:
screen brightness
There. Hope that helps.
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Title:
screen brightness is inverted
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+bu
** Attachment added: "acpi.tar.bz"
https://bugs.launchpad.net/ubuntu/+bug/842459/+attachment/2390651/+files/acpi.tar.bz
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Title:
screen brightn
** Attachment added: "lspci.txt"
https://bugs.launchpad.net/ubuntu/+bug/842459/+attachment/2390649/+files/lspci.txt
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Title:
screen brightness
** Attachment added: "dmidecode.txt"
https://bugs.launchpad.net/ubuntu/+bug/842459/+attachment/2390648/+files/dmidecode.txt
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Title:
screen bri
Thank you for taking the time to report this bug and helping to make
Ubuntu better. We need some more information from you before we can
start working on this bug.
Please include the information requested at
https://wiki.ubuntu.com/DebuggingACPI as separate attachments.
This may also prove to be
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