I got it working!!!
So, here is my investigation:
1) I have exactly the same
/usr/share/hal/fdi/policy/10osvendor/10-laptop-panel-mgmt-policy.fdi as you
attached, so renaming it has no effect.
2) I've carefully looked through the 10-laptop-panel-mgmt-policy.fdi file:
<?xml version="1.0" encoding="UTF-8"?>
<deviceinfo version="0.2">
<device>
<match key="info.category" string="laptop_panel">
<!-- only set if the laptop_panel.access_method is not custom -->
<match key="laptop_panel.access_method" compare_ne="custom">
<!-- for the generic sysfs interfaces -->
<match key="linux.sysfs_path" exists="true">
<append key="info.addons"
type="strlist">hald-addon-generic-backlight</append>
</match>
<!-- for all the procfs related brightness interfaces -->
<match key="linux.sysfs_path" exists="false">
<append key="info.interfaces"
type="strlist">org.freedesktop.Hal.Device.LaptopPanel</append>
<append key="org.freedesktop.Hal.Device.LaptopPanel.method_names"
type="strlist">SetBrightness</append>
<append
key="org.freedesktop.Hal.Device.LaptopPanel.method_signatures"
type="strlist">i</append>
<append key="org.freedesktop.Hal.Device.LaptopPanel.method_argnames"
type="strlist">brightness_value</append>
<append key="org.freedesktop.Hal.Device.LaptopPanel.method_execpaths"
type="strlist">hal-system-lcd-set-brightness</append>
<append key="org.freedesktop.Hal.Device.LaptopPanel.method_names"
type="strlist">GetBrightness</append>
<append
key="org.freedesktop.Hal.Device.LaptopPanel.method_signatures"
type="strlist"></append>
<append key="org.freedesktop.Hal.Device.LaptopPanel.method_argnames"
type="strlist"></append>
<append key="org.freedesktop.Hal.Device.LaptopPanel.method_execpaths"
type="strlist">hal-system-lcd-get-brightness</append>
</match>
</match>
</match>
</device>
</deviceinfo>
* and looked through my output of the following command:
de...@defue-laptop:~$ hal-find-by-property --key info.category --string
laptop_panel | xargs lshal -u
udi = '/org/freedesktop/Hal/devices/computer_backlight'
info.addons = {'hald-addon-generic-backlight'} (string list)
info.capabilities = {'laptop_panel'} (string list)
info.category = 'laptop_panel' (string)
info.parent = '/org/freedesktop/Hal/devices/computer' (string)
info.product = 'Generic Backlight Device' (string)
info.subsystem = 'backlight' (string)
info.udi = '/org/freedesktop/Hal/devices/computer_backlight' (string)
laptop_panel.access_method = 'sony-nvidia' (string)
laptop_panel.num_levels = 18 (0x12) (int)
linux.hotplug_type = 2 (0x2) (int)
linux.subsystem = 'backlight' (string)
*Obvously it maches the rule from 10-laptop-panel-mgmt-policy.fdi:
<!-- for the generic sysfs interfaces -->
<match key="linux.sysfs_path" exists="true">
<append key="info.addons"
type="strlist">hald-addon-generic-backlight</append>
</match>
* and doesn't match the opposite rule
<!-- for all the procfs related brightness interfaces -->
<match key="linux.sysfs_path" exists="false">
<append key="info.interfaces"
type="strlist">org.freedesktop.Hal.Device.LaptopPanel</append>
<append key="org.freedesktop.Hal.Device.LaptopPanel.method_names"
type="strlist">SetBrightness</append>
<append
key="org.freedesktop.Hal.Device.LaptopPanel.method_signatures"
type="strlist">i</append>
<append key="org.freedesktop.Hal.Device.LaptopPanel.method_argnames"
type="strlist">brightness_value</append>
<append key="org.freedesktop.Hal.Device.LaptopPanel.method_execpaths"
type="strlist">hal-system-lcd-set-brightness</append>
<append key="org.freedesktop.Hal.Device.LaptopPanel.method_names"
type="strlist">GetBrightness</append>
<append
key="org.freedesktop.Hal.Device.LaptopPanel.method_signatures"
type="strlist"></append>
<append key="org.freedesktop.Hal.Device.LaptopPanel.method_argnames"
type="strlist"></append>
<append key="org.freedesktop.Hal.Device.LaptopPanel.method_execpaths"
type="strlist">hal-system-lcd-get-brightness</append>
</match>
On my system this behaviour is due to "linux.sysfs_path" already exists.
Here is the appropriate lshal output:
udi = '/org/freedesktop/Hal/devices/pci_10de_1d8'
info.linux.driver = 'nvidia' (string)
info.parent = '/org/freedesktop/Hal/devices/pci_8086_27a1' (string)
info.product = 'G72M [GeForce Go 7400]' (string)
info.subsystem = 'pci' (string)
info.udi = '/org/freedesktop/Hal/devices/pci_10de_1d8' (string)
info.vendor = 'nVidia Corporation' (string)
linux.hotplug_type = 2 (0x2) (int)
linux.subsystem = 'pci' (string)
linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0'
(string)
pci.device_class = 3 (0x3) (int)
pci.device_protocol = 0 (0x0) (int)
pci.device_subclass = 0 (0x0) (int)
pci.linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0'
(string)
pci.product = 'G72M [GeForce Go 7400]' (string)
pci.product_id = 472 (0x1d8) (int)
pci.subsys_product_id = 33263 (0x81ef) (int)
pci.subsys_vendor = 'Sony Corporation' (string)
pci.subsys_vendor_id = 4173 (0x104d) (int)
pci.vendor = 'nVidia Corporation' (string)
pci.vendor_id = 4318 (0x10de) (int)
*As you can see "linux.sysfs_path =
'/sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0' (string)" is definied.
So if you change rules matches to the opposite (see attached file) - IT WORKS!!!
So, the workaround might be the following:
1) Install sony-smartdimmer_0.4.deb from the #67 comment
2) Check if the brightness change works, if it does you are done :)
3) Otherwise replace your
/usr/share/hal/fdi/policy/10osvendor/10-laptop-panel-mgmt-policy.fdi with the
attached one or change 2 rules "<match key="linux.sysfs_path"
exists="boolean">" to the opposite values (1: exists="true", 2: exists="false")
I AM NOT SURE THAT IT IS THE CORRECT WAY OF FIXING THE ISSUE, SO USE IT
ON YOUR OWN RISK.
** Attachment added: "10-laptop-panel-mgmt-policy.fdi"
http://launchpadlibrarian.net/29770446/10-laptop-panel-mgmt-policy.fdi
--
sony brighness on a geforce series older than 8 (nvclock works fine)
https://bugs.launchpad.net/bugs/277589
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