** Changed in: linux
Importance: Unknown = High
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https://bugs.launchpad.net/bugs/392812
Title:
Dell Studio 1555: cannot change display brightness after a while,
other hotkeys and
sad :( after one fix, now ACPI thermal fails after resume. I think i
will always keep waiting for newer kernel releases. Why do people break
ACPI so easily. There needs to be a good control on that. ubuntu should
use the latest kernels.. now my wait is longer, couldnt use 9.10 thanks
to brightness
Don't blame Canonical or Kernel developers. ACPI is very naughty and
manufacturers like to keep it that way to avoid non-paid systems to run
on them flawlessly, since they can't exploit it.
ACPI development is basically reverse-engineering and having one machine
for each type (remember, there are
I made a separate bug report for the thermal problems of Lucid's 2.6.32
kernel. You can follow the story here:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/524956
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
Hi,
I am using ubuntu 9.10 and recently I have updated the kernel to 2.6.31.19. As
per the discussion this is fixed and patch is released but I am facing the same
issue with this latest kernel.
Could anyone please explain why?
Thanks,
Abhijeet
--
Dell Studio 1555: cannot change display
Hi Abhijeet,
I spoke too soon, my 2.6.31 is *not* working. It stopped for quite a
while but now it's back. I have the 2.6.31-20 and it still happens...
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
Hi,
Mine is DualCore T4300, 3072MB 800MHz Dual Channel DDR2, Intel GMA
4500MHD, Dell Wireless 1397, BIOS A09.
Thermal sensors work with 2.6.31, fail with 2.6.32 and 2.6.33
Brightness, eject and lid work with 2.6.32 and 2.6.33, fail with 2.6.31
I think BIOS is a crucial point here. Originally I
Hi Pablo, I have to get home tonight to get full specs, but it's a
Studio1555 with Core2 Duo P7450, 4096MB 800MHz Dual Channel DDR2 SDRAM,
ATI Mobility RADEON HD 4570, Intel WiFi Link 5100. I'm running Ubuntu
9.10 fully up-to-date.
--
Dell Studio 1555: cannot change display brightness after a
Yes, that seems to be OK. I have something similar, but after a suspend-resume
cycle, I always get:
Thermal 0: ok, 0.0 degrees C
Thermal 1: ok, 0.0 degrees C
Thermal 2: ok, 0.0 degrees C
And I could not find any way (except reboot) to solve the problem. Do
you have the same symptom after resume?
2010/1/25 k_laci laszlokar...@hung.u-szeged.hu:
Yes, that seems to be OK. I have something similar, but after a
suspend-resume cycle, I always get:
Thermal 0: ok, 0.0 degrees C
Thermal 1: ok, 0.0 degrees C
Thermal 2: ok, 0.0 degrees C
And I could not find any way (except reboot) to solve
I continued to use the laptop (after resume and telling me those weird
0°C) and suddenly (after some bug with an app - I think unrelated) it
shut down. No warn message or anything, looking in the kern.log I got
this before the shutdown:
Jan 25 16:59:32 studio kernel: [18440.303726] CPU1:
Funny, my thermal/brightness/lid are in perfect state, after hours of
usage, plugged in or not, suspended several times since I turned it on.
Ever since I upgraded to 2.6.31-17 I never had a problem again.
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and
** Tags added: temperature
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
You received this bug notification because you are a member of Ubuntu
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I upgraded the lucid kernel to 2.6.32-11 and it's the same. After the
resume acpi -t shows 0°C:
~$ acpi -t
Thermal 0: ok, 0.0 degrees C
Thermal 1: ok, 0.0 degrees C
Thermal 2: ok, 0.0 degrees C
~$ sensors
acpitz-virtual-0
Adapter: Virtual device
temp1:+0.0°C (crit = +100.0°C)
I also tested my Dell 1555 with the kernel of Lucid, but the result is
not positive. Although brightness, lid and eject button work correctly,
I have problems with the thermal sensors. After resuming the machine,
the sensors cannot be read (acpi -t reports 0 C) and thus the fans never
start. As a
2010/1/24 k_laci laszlokar...@hung.u-szeged.hu:
I also tested my Dell 1555 with the kernel of Lucid, but the result is
not positive. Although brightness, lid and eject button work correctly,
I have problems with the thermal sensors. After resuming the machine,
the sensors cannot be read (acpi
Finally I decided to try the latest kernel on Lucid and now works like
charm :).
~# uname -a
Linux studio 2.6.32-10-generic #14-Ubuntu SMP Thu Jan 7 17:38:08 UTC 2010
x86_64 GNU/Linux
Still, I think that should be solved in Karmic. It is not acceptable
that the fix would be that!.
--
Dell
The problem was supposedly fixed on Ubuntu 10.04 but the API drivers
still don't work. I'd wait until April...
It could be that it's taking longer to happen, as I tested after hours
of heavy usage and all was fine.
The lid problem is related to the brightness, I also had both together.
The rest
I'm using Karmic on a Dell Studio 1555 and this is my uname -a result:
Linux studio 2.6.31-17-generic #54-Ubuntu SMP Thu Dec 10 17:01:44 UTC
2009 x86_64 GNU/Linux
And I have that problem, the keys works for a while and then they stop
working. Also when I close the lid the screen keeps turned on
Ah, sorry I also found a on kern.log just after the buttons stopped
functioning...
[ 46.620013] ACPI: EC: input buffer is not empty, aborting transaction
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
Seems fixed for me with kernel 2.6.31-17, ubuntu 9.10
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
You received this bug notification because you are a member of Ubuntu
Bugs, which is
What does this mean fix released? The standard 9.10 install on Dell
Studio 1555 did not have brightness control. After updating to kernel
-17 it was the same (no brightness). Was able to fix this by adding
noapic in grub. I thought that fix released meant no need for such
manual workarounds?
Apparently it's fixed in 10.04, but we'll have to wait until April for
that
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
You received this bug notification because you are a member of
** Changed in: linux (Ubuntu)
Status: Confirmed = Fix Released
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
You received this bug notification because you are a member of Ubuntu
** Changed in: linux (Ubuntu)
Status: Confirmed = Fix Released
** Changed in: linux (Ubuntu)
Status: Fix Released = Confirmed
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
You
** Changed in: linux
Status: In Progress = Fix Released
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
You received this bug notification because you are a member of Ubuntu
Bugs, which
Having this problem on karmic as well. I was using noapic and nomodeset
options on boot, and all the multimedia and eject and lid closing keys
worked, and it went into hiberation and came out perfectly, but I was
messing with the 'xserver-xorg-video-intel' driver and it hasn't been
working since
I found this troubleshooting guide, I tried doing it but I don't understand
what xev is supposed to do. Maybe it could help?
https://wiki.ubuntu.com/Hotkeys/Troubleshooting
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
nopes .. i am sorry ... i take back my claim... it is not working ...
brightness etc everything failed after 2 hours and never worked even
after reboots .. THIS IS REALLY BAD.. i had issues with lexmark 64 bit
printer drivers and now this .. i am back to windows for sometime sadly.
--
Dell
also ATI needs to come out with usable driver for 2.6.32 i agree,
without that its too bad and choppy ...
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
You received this bug notification
So you are getting the error with the 2.6.32 kernel? Hm, I should try it
for more time then, I still haven't run it for more than an hour. Or are
you talking about the 2.6.31-16 kernel?
By the way is your touchpad working properly? The cursor start jumping
and clicking around like crazy when I
I've reinstalled Ubuntu 9.10 from scratch (CD), updated up-front and
installed the ATI drivers. Still not working. Brightness and lid
operations work fine for a few minutes than stop working.
Just to let it clear, suspend and hibernate work perfectly when choosing
it from the shutdown menu. ACPI
Updated to 2.6.32-17 and the bug is still present.
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
You received this bug notification because you are a member of Ubuntu
Bugs, which is
Investigating a bit further, I can confirm that the lid.sh script works
fine once brightness is woking and doesn't even get called when it's
not. In other words, the script works perfectly, the event is not being
generated. Both brightness and lid events stop working at the same time,
I still
Could be some mess up with the thermal control?
I'd doubt it, especially on a brand new laptop (my Dell is under a month old).
Either way, I'm not noticing anything to do with temperature
I'm running 2.6.32 and right after the update and restart of the machine
it worked for about four minutes
I am on 2.6.31-16 64 bit and looks like it is working fine (i am able
to control brightness in dell studio 1555). I had problems with ever
other kernel before this, some work for 2-3 mins and then fail, but its
been about 3 hours and it is still working dont know if it will fail
later, but i did
The problem seems to be fixed in kernel v2.6.32 :).
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
You received this bug notification because you are a member of Ubuntu
Bugs, which is
Hi Zdravko, is it 32bit or 64bit you tested?
My 1555 works fine with any 32bit kernel but fails on all but the second
Karmic 64bit kernels.
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
You
I've tested with the 32-bit kernel from http://kernel.ubuntu.com
/~kernel-ppa/mainline/v2.6.32/ and after an hour of use it seems to be
working fine. Some people also confirm that:
http://bugzilla.kernel.org/show_bug.cgi?id=13689 . I haven't tested the
64-bit version though.
--
Dell Studio 1555:
Tested with 64-bit and it seems to work for me. Even powerdevil can now control
brightness.
I have rolled back to 2.6.31.16 kernel as I'd like to wait for ATI to come up
with a video driver that is usable under 2.6.32 kernel -- as without the video
driver, everything is extremely choppy and
Tried again (Dell 1555, Radeon 4500 series):
noapic acpi=force nolapic works brightness and suspend on close lid,
but it doesn't recognize my core duo as dual core.
With any other combination of those flags I get two cores but brightness
and lid close stop working.
Is there any progress to this
Just with the noapic option is working for me on karmic.
I get the two cores, brightness and lid close works, suspension and hibernation
works.
The only thing that doesn't work is changing the brightness from the kde plasma
widget. I have to change it with the keys or it changes automatically
Mine is:
Linux blakey 2.6.31-16-generic #52-Ubuntu SMP Thu Dec 3 22:07:16 UTC 2009
x86_64 GNU/Linux
Which kernel are you using?
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
You received
2.6.31-16-generic-pae #52-Ubuntu SMP right now, but I have been using
the generic kernel and has been working ok too.
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
You received this bug
Commenting out the goto end; line in acpi_ec_transaction and recompiling
the kernel from source works around the bug for me -- I still get the
input buffer not empty error messages in dmesg, but the brightness
keys and AC adapter detection continue to work.
static int acpi_ec_transaction(struct
Reproduced the bug on 9.10 rc. Even adding noapic to grub2 configuration
doesn't solve the problem (brigthess works once every 2 or 3 attempts).
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
This bug still exists on Ubuntu 9.10 beta, using the open source driver.
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
You received this bug notification because you are a member of Ubuntu
Sorry, wrong bug! :(
But I can confirm that I still need noapic in the kernel line to make it
work with Karmic Koala.
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
You received this bug
I've updated to Ubuntu 9.10 and it worked. Using the proprietary fglrx
and everything.
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
You received this bug notification because you are a
Problem still exists with 2.6.31-12-generic.
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to
Can you tried to reproduce this issue in latest Karmic version or up to
date?
** Package changed: ubuntu = linux (Ubuntu)
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
You received this bug
** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
You received this bug notification because you are a member of Ubuntu
Bugs,
Passing the noapic option to the kernel was working until 2.6.25-13 kernel
version.
From 2.6.25-14 version, it still works but it has the side effect of not power
off the machine when halting the system.
It also dumps a (kernel?) trace, althogh it doesnt looks like a kernel panic. I
only see
Problem still exists with Linux 2.6.31-9-generic
([48.576034] ACPI: EC: input buffer is not empty, aborting transaction)
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
You received this bug
changing the line in menu.lst didn't work for me. still cannot change
brightness.
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
You received this bug notification because you are a member of
Just to confirm, bucik85's noapic workaround works for me too, and also
makes the other symptoms go away as well. Not an ideal fix, and there
may be subtler ways of doing this, but it's simpler than patching your
kernel.
** Also affects: linux via
** Changed in: linux
Status: Unknown = In Progress
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
You received this bug notification because you are a member of Ubuntu
Bugs, which is
** Summary changed:
- No change display brightness
+ Dell Studio 1555: cannot change display brightness after a while, other
hotkeys and ACPI stuff begin to fail
** Tags added: hotkeys
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to
** Changed in: ubuntu
Status: New = Confirmed
--
Dell Studio 1555: cannot change display brightness after a while, other hotkeys
and ACPI stuff begin to fail
https://bugs.launchpad.net/bugs/392812
You received this bug notification because you are a member of Ubuntu
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