Brightness control on Toshiba Satellite L755

[[e-mail]]

I've try to control acpi module but always the same problem....

sudo modprobe toshiba_acpi
FATAL: Error inserting toshiba_acpi (/lib/modules/2.6.39-020639-generic/kernel/drivers/platform/x86/toshiba_acpi.ko): No such device

also using the patch toshiba-acpi-fix

Selezionato il pacchetto toshiba-acpi-fix.
(Lettura del database... 181435 file e directory attualmente installati.)
Estrazione di toshiba-acpi-fix (da .../toshiba-acpi-fix_0.0.3_all.deb)...
Configurazione di toshiba-acpi-fix (0.0.3)...
Building toshiba_acpi for installed kernels
Building toshiba_acpi for 2.6.38-8-generic
make -C /lib/modules/2.6.38-8-generic/build M=/tmp/tmp.V72hvK2C9J modules
make[1]: ingresso nella directory "/usr/src/linux-headers-2.6.38-8-generic"
  CC [M] /tmp/tmp.V72hvK2C9J/toshiba_acpi.o
  Building modules, stage 2.
  MODPOST 1 modules
  CC /tmp/tmp.V72hvK2C9J/toshiba_acpi.mod.o
  LD [M] /tmp/tmp.V72hvK2C9J/toshiba_acpi.ko
make[1]: uscita dalla directory "/usr/src/linux-headers-2.6.38-8-generic"
cp toshiba_acpi.ko /lib/modules/2.6.38-8-generic/kernel/drivers/platform/x86/toshiba_acpi.ko
update-initramfs -c -k 2.6.38-8-generic
update-initramfs: Generating /boot/initrd.img-2.6.38-8-generic
Building toshiba_acpi for 2.6.39-020639-generic
make -C /lib/modules/2.6.39-020639-generic/build M=/tmp/tmp.YYMWyPvUNG modules
make[1]: ingresso nella directory "/usr/src/linux-headers-2.6.39-020639-generic"
  CC [M] /tmp/tmp.YYMWyPvUNG/toshiba_acpi.o
/tmp/tmp.YYMWyPvUNG/toshiba_acpi.c:72:28: fatal error: linux/smp_lock.h: File o directory non esistente
compilation terminated.
make[2]: *** [/tmp/tmp.YYMWyPvUNG/toshiba_acpi.o] Errore 1
make[1]: *** [_module_/tmp/tmp.YYMWyPvUNG] Errore 2
make[1]: uscita dalla directory "/usr/src/linux-headers-2.6.39-020639-generic"
make: *** [all] Errore 2
cp toshiba_acpi.ko /lib/modules/2.6.39-020639-generic/kernel/drivers/platform/x86/toshiba_acpi.ko
cp: impossibile eseguire stat di "toshiba_acpi.ko": File o directory non esistente
make: *** [install] Errore 1
Building toshiba_acpi for 3.0.4-030004-generic
make -C /lib/modules/3.0.4-030004-generic/build M=/tmp/tmp.kJRcKmB5yG modules
make[1]: ingresso nella directory "/usr/src/linux-headers-3.0.4-030004-generic"
  CC [M] /tmp/tmp.kJRcKmB5yG/toshiba_acpi.o
/tmp/tmp.kJRcKmB5yG/toshiba_acpi.c:72:28: fatal error: linux/smp_lock.h: File o directory non esistente
compilation terminated.
make[2]: *** [/tmp/tmp.kJRcKmB5yG/toshiba_acpi.o] Errore 1
make[1]: *** [_module_/tmp/tmp.kJRcKmB5yG] Errore 2
make[1]: uscita dalla directory "/usr/src/linux-headers-3.0.4-030004-generic"
make: *** [all] Errore 2
cp toshiba_acpi.ko /lib/modules/3.0.4-030004-generic/kernel/drivers/platform/x86/toshiba_acpi.ko
cp: impossibile eseguire stat di "toshiba_acpi.ko": File o directory non esistente
make: *** [install] Errore 1
Reloading the module
ERROR: Module toshiba_acpi does not exist in /proc/modules
FATAL: Error inserting toshiba_acpi (/lib/modules/2.6.39-020639-generic/kernel/drivers/platform/x86/toshiba_acpi.ko): No such device
dpkg: errore nell'elaborare toshiba-acpi-fix (--configure):
 il sottoprocesso vecchio script di post-installation ha restituito lo stato di errore 1
Si sono verificati degli errori nell'elaborazione:
 toshiba-acpi-fix

Any suggestion to me?
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ale 1306 F.... pulseaudio
 /dev/snd/pcmC0D0p: ale 1306 F...m pulseaudio
CRDA: Error: [Errno 2] File o directory non esistente
Card0.Amixer.info:
 Card hw:0 'PCH'/'HDA Intel PCH at 0xc3400000 irq 47'
   Mixer name : 'Conexant CX20585'
   Components : 'HDA:14f15069,1179fc50,00100302'
   Controls : 8
   Simple ctrls : 5
Card1.Amixer.info:
 Card hw:1 'NVidia'/'HDA NVidia at 0xc3000000 irq 17'
   Mixer name : 'Nvidia GPU 14 HDMI/DP'
   Components : 'HDA:10de0014,10de0101,00100100'
   Controls : 16
   Simple ctrls : 4
DistroRelease: Ubuntu 11.04
HibernationDevice: RESUME=UUID=95b6d3b9-0f21-407b-b893-5a6025489073
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
MachineType: TOSHIBA SATELLITE L755
NonfreeKernelModules: nvidia
Package: linux (not installed)
ProcEnviron:
 LANGUAGE=it_IT:en
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-11-generic root=UUID=58bed6f7-d924-4326-a43a-a654e438d28b ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 2.6.38-11.48-generic 2.6.38.8
RelatedPackageVersions:
 linux-restricted-modules-2.6.38-11-generic N/A
 linux-backports-modules-2.6.38-11-generic N/A
 linux-firmware 1.52
Tags: natty running-unity
Uname: Linux 2.6.38-11-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 08/02/2011
dmi.bios.vendor: INSYDE
dmi.bios.version: 2.30
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Base Board Product Name
dmi.board.vendor: Intel Corp.
dmi.board.version: Base Board Version
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: OEM Chassis Manufacturer
dmi.chassis.version: OEM Chassis Version
dmi.modalias: dmi:bvnINSYDE:bvr2.30:bd08/02/2011:svnTOSHIBA:pnSATELLITEL755:pvrPSK2YE-08H016IT:rvnIntelCorp.:rnBaseBoardProductName:rvrBaseBoardVersion:cvnOEMChassisManufacturer:ct10:cvrOEMChassisVersion:
dmi.product.name: SATELLITE L755
dmi.product.version: PSK2YE-08H016IT
dmi.sys.vendor: TOSHIBA
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ale 1292 F.... pulseaudio
CRDA: Error: [Errno 2] File o directory non esistente
Card0.Amixer.info:
 Card hw:0 'PCH'/'HDA Intel PCH at 0xc3400000 irq 47'
   Mixer name : 'Conexant CX20585'
   Components : 'HDA:14f15069,1179fc50,00100302'
   Controls : 8
   Simple ctrls : 5
Card1.Amixer.info:
 Card hw:1 'NVidia'/'HDA NVidia at 0xc3000000 irq 17'
   Mixer name : 'Nvidia GPU 14 HDMI/DP'
   Components : 'HDA:10de0014,10de0101,00100100'
   Controls : 16
   Simple ctrls : 4
DistroRelease: Ubuntu 11.04
HibernationDevice: RESUME=UUID=95b6d3b9-0f21-407b-b893-5a6025489073
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
MachineType: TOSHIBA SATELLITE L755
NonfreeKernelModules: nvidia
Package: linux (not installed)
ProcEnviron:
 LANGUAGE=it_IT:en
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-11-generic root=UUID=58bed6f7-d924-4326-a43a-a654e438d28b ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 2.6.38-11.48-generic 2.6.38.8
RelatedPackageVersions:
 linux-restricted-modules-2.6.38-11-generic N/A
 linux-backports-modules-2.6.38-11-generic N/A
 linux-firmware 1.52
Tags: natty
Uname: Linux 2.6.38-11-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

dmi.bios.date: 08/02/2011
dmi.bios.vendor: INSYDE
dmi.bios.version: 2.30
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Base Board Product Name
dmi.board.vendor: Intel Corp.
dmi.board.version: Base Board Version
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: OEM Chassis Manufacturer
dmi.chassis.version: OEM Chassis Version
dmi.modalias: dmi:bvnINSYDE:bvr2.30:bd08/02/2011:svnTOSHIBA:pnSATELLITEL755:pvrPSK2YE-08H016IT:rvnIntelCorp.:rnBaseBoardProductName:rvrBaseBoardVersion:cvnOEMChassisManufacturer:ct10:cvrOEMChassisVersion:
dmi.product.name: SATELLITE L755
dmi.product.version: PSK2YE-08H016IT
dmi.sys.vendor: TOSHIBA

[Seth Forshee (sforshee)]

There's a known issue with toshiba_acpi loading on newer models, but that module shouldn't be necessary to control your backlight (and on some models the interface used by toshiba_acpi doesn't allow adjusting the backlight anyway). Backlight control should still be possible via the generic ACPI backlight device. Are you unable to adjust the brightness level at all?

Can you please run 'ubuntu-bug -p linux 850065' in a terminal to attach relevant logs to this bug report? Please also install the fwts package (sudo apt-get install fwts), then run 'sudo fwts --disassemble-aml' and attach the *.dsl files it generates to this bug as well. Thanks!

[[e-mail] (alessandro88salvadori)]

I write 'ubuntu-bug -p linux 850065'....the answer is that the PID in not valid!....by the way a can't control the brightness at all!
I attach the dsl file

[[e-mail] (alessandro88salvadori)]

Thank you very much!

[Seth Forshee (sforshee)]

Sorry, my mistake. That should have been 'apport-collect -p linux 850065'.

[[e-mail] (alessandro88salvadori)]

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[[e-mail] (alessandro88salvadori)]

Ok.....I've done!...

[Seth Forshee (sforshee)]

toshiba_acpi probably isn't going to help. Most newer models I've looked at don't support modifying the brightness level via the interface it uses, only reading it, and yours doesn't appear to be an exception.

Please try the following. First, run these commands:

  cat /sys/class/backlight/acpi_video0/max_brightness
  cat /sys/class/backlight/acpi_video0/brightness
  cat /sys/class/backlight/acpi_video0/actual_brightness
  cat /sys/class/backlight/acpi_video0/bl_power

Please provide the output you get from these commands. Then try running

  echo n | tee /sys/class/backlight/acpi_video0/brightness

replacing "n" with various values less than or equal to the number you got from the max_brightness file (you might avoid using 0 in case it turns off the backlight). Does the backlight level change? If not, please attach the output of dmesg after writing the values to the brightness file.

[[e-mail] (alessandro88salvadori)]

cat /sys/class/backlight/acpi_video0/max_brightness
7
root@ale-SATELLITE-L755:/home/ale# cat /sys/class/backlight/acpi_video0/brightness
7
root@ale-SATELLITE-L755:/home/ale# cat /sys/class/backlight/acpi_video0/actual_brightness
7
root@ale-SATELLITE-L755:/home/ale# cat /sys/class/backlight/acpi_video0/bl_power
0
root@ale-SATELLITE-L755:/home/ale# echo 1 | tee /sys/class/backlight/acpi_video0/brightness
1
.....and nothings change!...

[[e-mail] (alessandro88salvadori)]

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[[e-mail] (alessandro88salvadori)]

I'm sorry...I've made a mystake and attach everythings.....

[Seth Forshee (sforshee)]

Can you check one more thing? After you write a value to the brightness file, do you get that value when you read the actual_brightness file, or something else?

[[e-mail] (alessandro88salvadori)]

Yes.....Values changes....but not brightness...
root@ale-SATELLITE-L755:/home/ale# echo 1 | tee /sys/class/backlight/acpi_video0/brightness
1
root@ale-SATELLITE-L755:/home/ale# cat /sys/class/backlight/acpi_video0/max_brightness
7
root@ale-SATELLITE-L755:/home/ale# cat /sys/class/backlight/acpi_video0/brightness
1
root@ale-SATELLITE-L755:/home/ale# cat /sys/class/backlight/acpi_video0/actual_brightness
1
root@ale-SATELLITE-L755:/home/ale# cat /sys/class/backlight/acpi_video0/bl_power
0

Thaks!!

[Seth Forshee (sforshee)]

That indicates that the interaction with the bios is okay -- actual_brightness actually fetches the brightness level from the bios, so we can see that the values you write are getting through. But whatever the bios is doing doesn't actually affect the brightness for whatever reason. I'll look at the DSDT some more to see if there are any clues, but right now it looks like your bios is just broken in this respect. You could check to see if there's a bios update for your machine (although it may be difficult to apply unless you're dual-booting Windows).

We can go ahead and try toshiba_acpi, but based on the DSDT I'm pretty sure it isn't going to work either. I've uploaded a dkms package you can install to get a version of toshiba_acpi that should work on your machine. After you install the package and load the module, you should have a new folder /sys/class/backlight/toshiba. Try the same things with adjusting the brightness there and see if it has any effect.

  http://people.canonical.com/~sforshee/lp850065/toshiba-acpi/toshiba-acpi-dkms_0.1_all.deb

It looks like you are using the proprietary nvidia module, and it doesn't appear to be exporting any kind of brightness control (unless it's through their control panel application, but that's not a very good solution anyway). Have you tried the nouveau driver? If it works okay for you then it might give you a working backlight control. It may be worth trying, and if it does work we can get your system using it instead of the ACPI control.

Beyond that, unless I find something in your DSDT, there's probably not anything that can be done. At this point it looks like the brightness control in your bios is just broken.

[[e-mail] (alessandro88salvadori)]

I'm already using nouveau driver....i've tried dkms package...and bios is up to date...nothing to do...
I have the dual boot...and using windows backlight controll work at all...
About nvidia control pannel i'm just using that for backlight controll...but it's not such a good solution.
I suppose that i have to wait for i seroius bios update!
In any case you was very very kind and i'm realy thankful to you!!

[Seth Forshee (sforshee)]

Both times you've attached your logs it shows your using the proprietary nvidia driver, not nouveau. I'm not sure, but I suspect that you can only use the control panel with the proprietary driver as well.

[Felipe Uribe (wfpaisa)]

update the bios and still does not work in version 11 ubuntu try various configurations at the end of all worked. but now ubuntu upgrade to version 12 and I have the same problem and I try to run out the steps in the last version., anyone know what else I can do?

[Seth Forshee (sforshee)]

Felipe: I'm still waiting for a definite confirmation that the nouveau's backlight driver doesn't work. If you could ensure that you're using nouveau, then test changing the brightness via the /sys/class/backlight/nv_backlight/brightness file, that would be a big help.

[Felipe Uribe (wfpaisa)]

I have only the folder: /sys/class/backlight/toshiba ,
Change the value of brightness as root and still does not change the brightness, the brightness in windows works well, I hate windows. my eyes do not stand up to the maximum brightness. of ubuntu. : (

[Rik Shaw (rik-shaw)]

I had the same problem with a Satellite L755 (Intel only, no NVIDIA) and solved it by creating this file:

/usr/share/X11/xorg.conf.d/20-intel.conf

Giving it the following:

Section "Device"
        Identifier "card0"
        Driver "intel"
        Option "Backlight" "intel_backlight"
        BusID "PCI:0:2:0"
EndSection

After reboot the brightness function keys work! Other posts indicated needing to add acpi_backlight=vendor to grub but I don't seem to need to modify any grub settings. Just the above file solves the problem.

[Rik Shaw (rik-shaw)]

FYI that above fix was for Ubuntu 14.04 / Linux Mint 17, with the 3.19 kernel