** Changed in: linux (Ubuntu)
Assignee: Kamal Mostafa (kamalmostafa) => (unassigned)
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Title:
screensaver backlight stuck off, system looks hu
Me too. I have not seen this problem since 9.10, I believe; 12.04
brought it back (or something like it).
Linux janus 3.2.0-24-generic #38-Ubuntu SMP Tue May 1 16:18:50 UTC 2012
x86_64 x86_64 x86_64 GNU/Linux
P: /devices/virtual/dmi/id
E: DEVPATH=/devices/virtual/dmi/id
E:
MODALIAS=dmi:bv
In 12.04 I am seeing this bug still here as well.
philip@PrincessLeia:~$ uname -r
3.2.0-18-generic
philip@PrincessLeia:~$ uname -a
Linux PrincessLeia 3.2.0-18-generic #28-Ubuntu SMP Fri Mar 2 20:02:50 UTC 2012
x86_64 x86_64 x86_64 GNU/Linux
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The problem occured on Precise Pangolin Beta1 now.
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Title:
screensaver backlight stuck off, system looks hung
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This bug was fixed in the package linux - 3.0.0-15.25
---
linux (3.0.0-15.25) oneiric-proposed; urgency=low
[Brad Figg]
* Release Tracking Bug
- LP: #910894
[ Upstream Kernel Changes ]
* Revert "clockevents: Set noop handler in clockevents_exchange_device()"
- LP: #
I can confirm that the -15 kernel fixes the issue on Aspire 5740.
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screensaver backlight stuck off, system looks hung
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** Changed in: linux (Ubuntu)
Status: Fix Committed => Fix Released
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Title:
screensaver backlight stuck off, system looks hung
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** Also affects: linux (Ubuntu Oneiric)
Importance: Undecided
Status: New
** Tags added: rls-mgr-p-tracking
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Title:
screensaver backlig
just a comment for those that tried editing the grub file at boot, in my
case i edited the grub and added acpi_backlight=vendor, however did not
see any effect. having read a few other bug reports I decided to try
this again, however using the reverse brightness light keys, and got
some success.
s
Thanks Dave, that seemed to solve my problem on my acer aspire whilst
connected to an external monitor, once disconnected the screen goes dark
again, anyway its a start for now.
thanks
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hi cmcanulty,
As soon as this fix is released in the main Ubuntu kernel (with version
-15, this bug status will be fix released), you will not need install
the kernel from the PPA but can instead just do
sudo apt-get update
sudo apt-get dist-upgrade
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I'm new to Ubuntu, I switched from Windows a while ago. I had this problem as
well, and I am using an Emachines E525 Laptop. I don't know if this will work
for every computer, or if it's just a temp. fix, but I got a bright light to
see the screen then did these steps.
1. Opened Terminal
2. Type
OK I am trying to learn about the kernel process. Will this have to be
redone every time there is a kernel upgrade. And can you explain how you
learned to do the patch. Thank you & Happy Holidays
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Sorry about the double post. Now light usually stays on but sometimes
all the laptops have to be closed and opened to get light back on.
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Title:
s
I got something to work and posted the directions here in post#25
http://ubuntuforums.org/showthread.php?t=1862893&page=2
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Title:
screensaver back
I added the ppa then got the no key error so I pasted this key
BEGIN PGP PUBLIC KEY BLOCK-
Version: SKS 1.0.10
mI0ESzaDQAEEAMZYGwJdo5WrARTjP3OqikQu2C0JvA8kOWjlSRWhFX8OpSS8GIA/T1A8TQFV
pO7DOT7IR0bDHSTCoD8TEc7UcphBHR3/4O7hD/xV9XS0VMWRXvLxbPcvWgE8ymOlacnhQRK2
A3UjUdk+sMVj7/bgpY4iq4MBQj9ub8kCU
@Adrienne-
It sounds like the problems you're experiencing more specifically relate to
either of these two bug reports ("backlight off at startup"):
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/779166
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/765438
My suggestion is to try t
@cmcanulty-
You should not need to use 'sudo add-key' at all. add-key is only relevant for
older Ubuntu versions (and these backlight PPA's are only for Ubuntu 11.10).
The best way to add the inverted-backlight PPA (which also includes the
stuck-backlight fix) is to run these commands in a ter
I added the ppa then got the no key error so I pasted this key
BEGIN PGP PUBLIC KEY BLOCK-
Version: SKS 1.0.10
mI0ESzaDQAEEAMZYGwJdo5WrARTjP3OqikQu2C0JvA8kOWjlSRWhFX8OpSS8GIA/T1A8TQFV
pO7DOT7IR0bDHSTCoD8TEc7UcphBHR3/4O7hD/xV9XS0VMWRXvLxbPcvWgE8ymOlacnhQRK2
A3UjUdk+sMVj7/bgpY4iq4MBQj9ub8kCU
** Branch linked: lp:ubuntu/oneiric-proposed/linux-ti-omap4
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Title:
screensaver backlight stuck off, system looks hung
To manage notifications ab
One more update. I tried the kernel 3.0.0.-15 generic. This also did not
fix the issue on the T400. Still dim screen can only use laptop with
external monitor.
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Hi -I have a Lenovo T400. The patch does not work for me. In the
beginning I could get the laptop display to brighten by connecting an
external monitor. That does not work any more. Suspend and resume does
not work. Changing users does not work. So now the laptop is not usable
unless I have a mon
I have prepared a PPA test kernel for Ubuntu 11.10 (Oneiric) including a
patch which might address the "inverted backlight brightness" problem,
but I would like to move discussion of that problem to a more specific
bug report:
LP #842459https://bugs.launchpad.net/ubuntu/+bug/842459
See my c
Fixed in 3.0.0-15 for me.
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Title:
screensaver backlight stuck off, system looks hung
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@Christopher-
On Thu, 2011-12-15 at 18:00 +, Christopher Barrington-Leigh wrote:
> Regression after latest kernel update: Linux my-netbook 3.0.0-15-generic
> #24-Ubuntu SMP Mon Dec 12 15:25:25 UTC 2011 i686 i686 i386 GNU/Linux
>
> The inverted brightness problem mentioned above was fixed, but
Regression after latest kernel update: Linux my-netbook 3.0.0-15-generic
#24-Ubuntu SMP Mon Dec 12 15:25:25 UTC 2011 i686 i686 i386 GNU/Linux
The inverted brightness problem mentioned above was fixed, but just
returned.
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@James Frank: My testing indicates that this bug is fixed in Precise
Alpha-1 (the 3.2.0-2.5 kernel). Some systems may still need to use the
kernel boot parameter "acpi_backlight=vendor" however. Guidance on
using kernel boot parameters is available at
https://wiki.ubuntu.com/Kernel/KernelBootPar
As has been noted, this is fundamentally a kernel bug, not a gnome-
settings-daemon bug, so marking the gnome-settings-daemon entry as
Invalid.
** Changed in: gnome-settings-daemon
Status: New => Invalid
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I verify that this bug is fixed by 3.0.0-15.24, and have set
'verification-done-oneiric'.
** Tags removed: verification-needed-oneiric
** Tags added: verification-done-oneiric
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@naveensix: The issue you describe are not likely to be related to this
bug. Please file a separate bug report.
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Title:
screensaver backlight stu
This bug is awaiting verification that the kernel for Oneiric in
-proposed solves the problem (3.0.0-15.24). Please test the kernel and
update this bug with the results. If the problem is solved, change the
tag 'verification-needed-oneiric' to 'verification-done-oneiric'.
If verification is not do
I noticed a couple of issues with the 3.0.0-15 release on Dell Studio
15 with intel graphics. I believe these are related-
1. System freeze after few seconds of resume. /var/log/Xorg.0.log.old is
attached and has these interesting lines-
[ 1371.960] (II) AIGLX: Suspending AIGLX clients for VT s
** Tags added: blocks-hwcert-enablement
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Title:
screensaver backlight stuck off, system looks hung
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Had the problem and before i was able to apply the patch / install the
3.0.0-14 kernel, upgraded to the precise alpha on my Acer Aspire 5336,
now when I try adding ur PPA to the update repository, its not
downloading the updates. I now have kernel 3.2. but no fix for the
backlight issue, any sugge
The kernel of the PPA solved the backlight problem on my lenovo S10e.
Thanks Kamal! I got rid of a very anoying problem.
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Title:
screensaver backl
Problem still exists here on my Dell D620, running Xubuntu 11.10.
Installed the kernel from the proposed updates this morning
Linux 3.0.0-14-generic #23-Ubuntu SMP Mon Nov 21 20:34:47 UTC 2011
Screen "switches off" after 1 min, per my settings in Power Manager.
When I activate the screen, it'
Problem still persists here:
Linux 3.0.0-14-generic #23-Ubuntu SMP Mon Nov 21 20:34:47 UTC 2011 i686 i686
i386 GNU/Linux
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Title:
screensaver back
@readan2- Correction: Try the 'stuck-backlight' PPA referenced in
comment #55.
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Title:
screensaver backlight stuck off, system looks hung
To m
@readan2- Try the 'stuck-backlight' PPA referenced in comment #54. If
that fixes it for you, then the official 3.0.0-15 kernel will also fix
it.
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For reference, the relevant kernel patches applied to the Ubuntu 11.10
(Oneiric) repository are:
http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-oneiric.git;a=commit;h=fc2199957c120c6e9121281b877fe78154c5dd19
http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-oneiric.git;a=commit;h=9ee9da25243469279f4fbbcc
The two patches by Takashi Iwai to fix this bug ("screensaver backlight
stuck off, system looks hung") have now been applied to the standard
Ubuntu 11.10 kernel. One of the patches appears in the recently
released 3.0.0-14 series kernel and resolves the problem for many
systems. The other patch
Me too, Claudio: Updating to the latest Kernel 3.0.0-14-generic for
11.10 / official Ubuntu (64bit, running on mains, ie plugged in) gets
rid of both the locked-to-dim state after being idle for a while and the
reverse brightness problem after being idle for a few seconds.
Thanks, all.
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Using (official Ubuntu) Kernel 3.0.0-14-generic solves the problem for
me.
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Title:
screensaver backlight stuck off, system looks hung
To manage n
Without installing the patch from #48 (but keeping up with mainstream
updates), I have noticed a change to the behaviour of this bug (on a
dell D620 running 64-bit Xubuntu 11.10, running on mains).
I now find that if the system is left for a short while, the screen dims
as expected. Pressing any k
on my Lenovo B570 with Sandybridge only ( Core i3 + HD2000 ) , your GSD
ppa worked great , But why isn't your patch backported on GSD 3.2 on
proposed ? Is there a big regression risk ?
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ht
$ uname -a
Linux rgw2 3.0.0-13-generic #22+kamal~fix~stuck~backlight4-Ubuntu SMP Wed Nov
23 13:54:10 UT i686 i686 i386 GNU/Linux
=> still same result with this last version: it works.
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Dear All,
I just tested this last patch, and it works for me on my ASUS UL20A.
(intel GMA 4500HD)
below some detailed infos:
$ uname -a
Linux rgw2 3.0.0-13-generic #22+kamal~fix~stuck~backlight3-Ubuntu SMP Fri Nov
18 01:04:58 UT i686 i686 i386 GNU/Linux
$ cat /proc/cmd*
BOOT_IMAGE=/boot/vmlinuz
I have updated my Ubuntu Oneiric 11.10 kernel PPA with another new
experimental patch by Keith Packard[0]. This new patch may resolve the
"inverted brightness" and/or the "jumps with successive changes"
behavior that has been reported on some systems:
https://launchpad.net/~kamalmostafa/+arc
I have a related problem, possibly not the same.
I am running Xubuntu 11.10 64 bit, patched only to normal distribution
level, on a dell d620 laptop.
There is no gnome-settings application, the nearest I can find is
settings->settings-manager-> and then various panels have settings
related to bla
I'm using a Dell XPS 15 (L501x) and it works with kamal's ppa and the
kernel parameter "acpi_backlight=vendor".
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Title:
screensaver backlight stuc
I updated using Kamal Mostafa's patch. It appears to solve the problem on my
HP Mini. That is, I have turned the "dim display when idle" option back on in
the "Screen" options, and now the display does not get locked into a dark mode.
However, I think this is working backwards: ten or so secon
Status update: A new kernel patch by Takashi Iwai has been submitted[0]
which will likely become the official fix for this problem. My thanks
to Takashi, and to Alex Davis for his earlier kernel patch.
I have updated my Ubuntu Oneiric kernel PPA with the new patch (as well
as another prerequisit
I don't think the problem is in gnome-settings-daemon, but in the
kernel. The gnome-settings-daemon package is actually only a workaround.
Isn't it?
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I have applied the patch in
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/872652/comments/34
and it works.
However, you must force version (in synaptic) because there has been an
update to a newer version in the official repositories.
Would be great if the patch could be applied soon...
So I tested also this blank screen problem with some mainline kernels.
Linux bilbo 3.0.9-030009-generic #20111635 SMP Fri Nov 11 21:43:52 UTC 2011
i686 i686 i386 GNU/Linux
Linux bilbo 3.1.0-030100rc10-generic #201110200610 SMP Thu Oct 20 10:20:00 UTC
2011 i686 i686 i386 GNU/Linux
Linux bilbo
I have a HP Compac mini 702EG with an Intel Corporation Mobile 945GME
Express Integrated Graphics Controller. I have also the problem since
11.10 (with 11.04 there was no error).
I tried the patched kernel from comment #26, #27 and #28, and it seems
to fix the problem. Thank you. Hopefully soon i
I am also having the problem on my Acer Aspire Laptop running Ubuntu
11.10. (Oneiric) since upgrading.
When connected to an external monitor I am able to see something
displayed, and can vaguely make out something on the laptop's dark
screen, this is when using kernel 3.0.0-13, reverting to kerne
Dell Inspiron N7010
Service Tag : FBL37P1
Works for me ( Ca fonctionne !! )
Thanks many time Kamal Mustafa.
Vincent
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Title:
screensaver backligh
Nor for me.
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Title:
screensaver backlight stuck off, system looks hung
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The patch from Kamal Mustafa did not work for me...:(
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screensaver backlight stuck off, system looks hung
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@Andriopoulos Nikolaos (sirnicolas21)
I'll apply the patch by the commands you have given and will revert back
with the outcome...(once i get back home)
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@ terminal
sudo add-apt-repository ppa:kamalmostafa/gnome-settings-daemon
sudo apt-get update
sudo apt-get upgrade
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Title:
screensaver backlight s
I may sound dumbbut could anyone please tell me how do i apply the
mentioned patch?
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Title:
screensaver backlight stuck off, system looks hung
For what it's worth, I had the same problem and the patch as per #28
works for me too. Thanks Kamal!
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Title:
screensaver backlight stuck off, syst
A quick update on this patch. I'm not sure what I did wrong the first
time I tried, but when I checked again it seems to be working fine.
Thanks Kamal!
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I applied the patched kernel last night to my Dell Studio 1558 and
unfortunately saw the same issue occur again. I'm not sure if there was
something else I needed to do, but at the moment it doesn't seem like
the patched kernel solves the issue in all cases. What information can
I capture to help
Additional note: the patch discussed in comments #26, #27, and #28 also
fixes the behavior of "xset s activate".
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Title:
screensaver backlight stu
I also confirm that Alex Davis's kernel patch
https://lkml.org/lkml/2011/10/2/185 fixes the problem (and in a better
way than my gnome-settings-daemon patch). [Dell Studio 1558]
I have published an installable Ubuntu Oneiric kernel PPA with that
patched applied (the build is pending, and won't l
Just tested the patch from #26 under 3.0.0-13-generic. Works great!
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Title:
screensaver backlight stuck off, system looks hung
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After further testing I am not certain the patch I mentioned in comment
#24 actually works. However, I can confirm that this patch:
https://lkml.org/lkml/2011/10/2/185 does work with the 3.1 kernel
released today.
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Indeed, I don't know why, but it started to work today. Thank you!
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Title:
screensaver backlight stuck off, system looks hung
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UPDATE: This bug appears to be caused by a regression in the i915
driver. See the explanation and patch from Takashi Iwai here:
https://lkml.org/lkml/2011/10/14/128 . The problem is fixed for me
using the 3.0.4 kernel with the patch applied. See bug report and
further discussion here:
https://b
ikaps: I applied that patch on the same Asus and it works. So it's
strange that it doesn't work for you.
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Title:
screensaver backlight stuck off,
For me this patch does not work (Asus A3E, Intel i915GM) - I tried
with/without acpi_backlight=vendor , as well as on AC and battery power.
The effect is still the same - no backlight after the screensaver is
dismissed (backlight=0).
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Patch solves screensaver issue for me too, I have an Intel 915GM.
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Title:
screensaver backlight stuck off, system looks hung
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I can confirm the patch works for the screensaver issue.
It does not work for "xset s activate".
MacBook1,1 with 945GM
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Title:
screensaver backlig
Thank you for taking the time to report this bug and helping to make
Ubuntu better. The issue you are reporting is an upstream one and it
would be nice if somebody having it could send the bug to the developers
of the software by following the instructions at
https://wiki.ubuntu.com/Bugs/Upstream/G
I am experiencing this problem on my Acer Aspire 5740 laptop running
Xubuntu without xfce4 or gnome power manager installed. As Joshua Rubin
mentioned in comment #17, the bug can be reproduced by just blanking the
screen with xset. The problem does not happen when the screen in
blanked in a TTY.
The supplied patch does resolve the issue for me when the screensaver
activates automatically.
The issue persists when running "xset s activate".
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The attached patch to gnome-settings-daemon fixes the "backlight stuck
off" problem in Ubuntu 11.10.
This PPA supplies an installable gnome-settings-daemon package with the
patch applied:
https://launchpad.net/~kamalmostafa/+archive/gnome-settings-daemon
** Patch added: "52_save_and_restore
** Description changed:
+ After the screensaver fades the screen to black and turns off the
+ backlight, tapping a keyboard key does NOT turn the backlight back on
+ again. The backlight is "stuck off" making the system appear to be
+ hung.
+
+ This a regression in Ubuntu 11.10.
+
+ - (orig
** Changed in: gnome-settings-daemon (Ubuntu)
Status: Triaged => In Progress
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Title:
screensaver backlight stuck off, system looks hung
To
The problem is caused by a recent change to gnome-settings-daemon (the
application of debian/patches/00git_dont_restore_brightness.patch); I'm
working on a fix.
I also note that the bug only occurs if the system is plugged in to A/C
power at the moment gnome-settings-daemon first detects that the
Kamal,
I have confirmed all of your findings so far, including:
1. by disabling dpms (xset -dpms) the screensaver does not turn off the
backlight, and the screen does not get "stuck".
2. (1) does not resolve the issue when caused by running "xset s activate"
3. Your, 1st, method of passing the l
This method appears to reliably re-enable my backlight when it gets
stuck off. @Joshua, please try each of these sequences (without
disabling dpms) and describe your results if they differ from mine.
"Log in in the dark and tap brightness-up"
1. log in to the graphical session, and let it time o
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