I'm not sure if this is still / again the same problem, but I have a
very similar issue on a recently bought Clevo P650RA laptop, running
Ubuntu Xenial / 16.04 and the similar bug search when reporting a new
bug led me to this issue.
The brightness keys do not work; setting the brightness
Fixed per comment #59 and upstream bug has been resolved.
** Changed in: linux (Ubuntu)
Status: Confirmed = Fix Released
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Title:
Fn +
We need to figure out what commits are needed to fix the black screen, so that
we can submit CADL SRU with those patches.
The kernel team don't like the regression even if the bug is pre-existing and
reveled by CADL patch.
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I can confirm that the brightness fn keys are now working for me in
Raring daily build as of 7th Jan 2013 (and possibly earlier).
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Title:
Fn +
AceLan, the patch first entered in the 3.6 series, the bug you linked is
much older.
Daniel Vetter first mentioned the patch in
https://bugs.freedesktop.org/show_bug.cgi?id=43577#c9, but there are no
reports thereafter that claim that it causes black screens (these issues
existed before the
https://bugassistant.libreoffice.org/show_bug.cgi?id=43577
The CADL patch introduced another black screen issue and is not really fixed
until now.
** Bug watch added: bugassistant.libreoffice.org/ #43577
https://bugassistant.libreoffice.org/show_bug.cgi?id=43577
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** Tags added: needs-upstream-testing
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Title:
Fn + F[89] does not work for controlling brightness on Clevo laptops
(B7130, W150HRM)
To manage
Does anyone know which version of the kernel this fix should appear in?
I am still seeing it in Quantal Beta. (3.5.0-17)
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Title:
Fn + F[89] does
It'll end up in 3.7.
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Title:
Fn + F[89] does not work for controlling brightness on Clevo laptops
(B7130, W150HRM)
To manage notifications
** Changed in: linux
Status: Confirmed = Fix Released
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Title:
Fn + F[89] does not work for controlling brightness on Clevo laptops
I have reported the /dev/mem write problem on 32 bit kernel in bug
#1037094
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Title:
Fn + F[89] does not work for controlling brightness on Clevo
64 bit is not an option for me at the moment. I have now confirmed the
workaround works on Quantal 64 bit and having looked at the script again I
understand your comment about /dev/mem being the problem, I initially assumed
it was the address that was at fault. I will file a bug against
Right, now we are getting somewhere. I booted off the Oneiric desktop 64 bit
live CD and now cadl_hack_brightness works correctly, the Fn keys show the
brightness bar and change the brightness. Kernel 3.0.0-12-generic.
And
$ c '\ASLB'
0xda31a018
$ c '\_SB_.PCI0.GFX0.CAL1'
0x410
So it works on
If 64-bit works, use that since it is the future. I do not know why
32-bit would not work. I guess it is an issue in the /dev/mem interface.
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Lekensteyn are you able to confirm whether my problem (comment #25) is
part of this same issue or is whether it is a different bug? Your help
is very much appreciated.
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I don't know why you would get that error. Can you modprobe acpi-call
and run:
c(){ echo $1 | sudo tee /proc/acpi/call /dev/null sudo cat
/proc/acpi/call;echo;}
c '\ASLB'
c '\_SB_.PCI0.GFX0.CAL1'
Please post the output of the last two commands (the first command just defines
a helper
$ c '\ASLB'
0xda31a018
$ c '\_SB_.PCI0.GFX0.CAL1'
0x0
The other CALn also show 0x0
If you think it worthwhile I could boot of an Oneiric live CD and try
it.
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The output is as expected (CALn is 0 because it did not get
initialized). Yes, please try Oneiric 64-bit.
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Title:
Fn + F[89] does not work for
I tried Oneiric 32 bit live CD (as that is what I have available) but I
do not get a working system. The CD is good so there must be something
in the laptop it does not like. Precise 32 bit runs ok but when I try
the scripts and the experiment in comment 39 I get exactly the same as
on Quantal.
What does your /proc/iomem show? If Oneiric fails, try building a
vanilla kernel (maybe the Ubuntu mainline kernels works too).
If that still does not work, or if you want to try something else, apply
the patch from freedesktop.org (see above) and build the i915 kernel
module.
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/proc/iomem is below.
I will give the Oneiric kernel a go in Quantal (32 bit).
I think building a kernel may be a bit beyond my capabilities, or at least
would involve me in a lot of research to get to the point where it is within my
capabilities, so hopefully that can be avoided.
Thanks again
I managed to boot off the Oneiric live CD (32 bit), kernel
3.0.0-12-generic. Everything exactly as before (cadl_hack_brightness
error and the outputs in comment 40.
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I have succeeded (with some trepidation) in installing and booting from
kernel 3.2.0.27-43 (in Quantal). Most of the boot errors have gone,
just leaving:
Aug 6 09:12:03 tigger kernel: [3.071520] ACPI Error: [_T_0] Namespace
lookup failure, AE_ALREADY_EXISTS (20110623/dswload2-316)
Aug 6
Nice to see that the bug is/will be resolved.
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Title:
Fn + F[89] does not work for controlling brightness on Clevo laptops
(B7130, W150HRM)
To
** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
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Title:
Fn + F[89] does not work for controlling brightness on Clevo laptops
I see that on boot, in syslog I am getting
Aug 5 17:55:07 tigger kernel: [ 10.278917] ACPI Warning:
0x0460-0x047f SystemIO conflicts with Region \PMIO 1
(20120320/utaddress-251)
Aug 5 17:55:07 tigger kernel: [ 10.278922] ACPI: If an ACPI driver is
available for this device, you
Can you test an older kernel? E.g. 3.2 from Ubuntu 12.04 or 3.0 from
Ubuntu 11.10.
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Title:
Fn + F[89] does not work for controlling brightness on
** Tags added: blocks-hwcert-enablement
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Title:
Fn + F[89] does not work for controlling brightness on Clevo laptops
(B7130, W150HRM)
To
I have this problem with a PC Specialist Genesys IV which is based on a Clevo
laptop. The mother board is reported as
baseboard-manufacturer: CLEVO CO.
baseboard-product-name: W240EU/W250EUQ/W270EUQ
baseboard-version : V3.0
The script in #7 gives
Yea, typo in my comment, it should indeed be grepping the .dsl file, not
the .dat one. Anyway, please attach your acpidump.txt, otherwise it is
hard to tell what the cause is.
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OS: Mint Maya (Based on 12.04)
Machine: Sager NP9170 (Clevo P170EM)
Brightness Down: Fn + F8 key
Brightness Up: Fn + F9 key
Output from grep mentioned above:
$ grep IGDM DSDT.dsl
OperationRegion (IGDM, SystemMemory, ASLB, 0x2000)
Field (IGDM, AnyAcc, NoLock, Preserve)
I
I haven't looked at your acpidump yet, but have you installed acpi_call
from the bumblebee/stable PPA (or build it manually using the
instructions on https://github.com/Bumblebee-Project/acpi_call)
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Performing:
sudo apt-get install acpi-call-tools acpi-call-source
was the missing link. Once installed and rebooted, the brightness keys
are now working. I'm not certain whether or not installing the source
was necessary.
Thank you very much!
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This bug also affects the Sager NP9170 (CLEVO P170EM).
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Title:
Fn + F[89] does not work for controlling brightness on Clevo laptops
(B7130,
I had to make a change:
The DSDT can be retrieved using:
sudo apt-get install acpidump iasl
cd $(mktemp -d)
sudo acpidump acpidump.txt
acpixtract acpidump.txt
iasl -d *.dat
grep IGDM DSDT.dsl
.dsl, not .dat. For me the .dat file was a binary file.
Regardless, I can't get this to work onmy
Escape as in use a proper string that grub will recognize.
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Title:
Fn + F[89] does not work for controlling brightness on Clevo laptops
(B7130,
The grub option is supposed to be acpi_osi=Windows 2006. The
/etc/default/grub file is sourced so you need to use \ in there. (this
is not necessary if you pass it as boot param by holding shift before
boot).
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Ah, I see what's going on now.
An empty OSI string will load the brightness controls in what seems to
be a hardware (embedded controller?) mode, bypassing any hotkey
detection from the distro.
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When using the script, button presses will bring up the brightness
meter. The grub setting does not.
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Title:
Fn + F[89] does not work for
With respect to a Windows 2006 string, I have no idea how to escape
that properly.
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Title:
Fn + F[89] does not work for controlling brightness on
I only get the brightness meter if I hold the brightness keys for a
longer time, i.e. not when I press it once to increment/decrement it by
one. What do you mean by escape?
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Adding acpi_osi= to the Grub line in /etc/default/grub enables the
hotkeys.
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Title:
Fn + F[89] does not work for controlling brightness on Clevo
err GRUB_CMDLINE_LINUX_DEFAULT
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Title:
Fn + F[89] does not work for controlling brightness on Clevo laptops
(B7130, W150HRM)
To manage
Hmm, I can't see why setting an empty ACPI OSI string has effect.
acpi_osi=Windows 2006 or later enables some additional code that
should make the brightness settings work providing that CDDS has been
initialized correctly.
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** Bug watch added: freedesktop.org Bugzilla #45452
https://bugs.freedesktop.org/show_bug.cgi?id=45452
** Also affects: linux via
https://bugs.freedesktop.org/show_bug.cgi?id=45452
Importance: Unknown
Status: Unknown
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Launchpad has imported 3 comments from the remote bug at
https://bugs.freedesktop.org/show_bug.cgi?id=45452.
If you reply to an imported comment from within Launchpad, your comment
will be sent to the remote bug automatically. Read more about
Launchpad's inter-bugtracker facilities at
From the previous findings, I've cooked a shellscript that uses
acpi_call to determine the address and ID to write. It relies on the
property that the DSDT of Clevo B7130 and Clevo W150HRM declare the base
address in the \ASLB field. I've seen other machines hardcoding this
value in their DSDT. In
The attached upstart script contains the script from the earlier post,
but fixes an issue in validating the _ADR result (which would result in
writing a 0 to the field, which was the default value)
Install it with:
sudo install -m 644 cadl-brightness.conf /etc/init
sudo start cadl-brightness
The
** Summary changed:
- Fn + F[89] does not work for controlling brightness
+ Fn + F[89] does not work for controlling brightness on Clevo laptops (B7130,
W150HRM)
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It effects me too, please take this bug seriously. Thanks.
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Title:
Fn + F[89] does not work for controlling brightness on Clevo laptops
(B7130,
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