Maybe solution 1 : Could somebody try to move
 "/usr/share/hal/fdi/policy/10osvendor/10-sony-laptop-brightness.fdi"
into "/usr/share/hal/fdi/preprobe/20thirdparty" or if it is not working
"/usr/share/hal/fdi/preprobe/10osvendor/" ?
(obviously after moving it restart HAL or the computer)

2009/8/3 yohan Lee-tin-yien <email address hidden>

> I was hoping that I've done the trick. The issue is that the
> "10-laptop-panel-mgmt-policy.fdi" is loaded before
> "10-sony-laptop-brightness.fdi" (which delete the wrong sysfspath").
> Thus There is two solutions :
> 1- force the evaluation of "10-sony-laptop-brightness.fdi" before the other
> by changing its order. But it may become non-standard.
> 2- Second approach is to copy&paste the appropriate part of
> "10-laptop-panel-mgmt-policy.fdi" into "10-sony-laptop-brightness.fdi".
> I will search throught the specifications if solution 1 can be done without
> becoming non-standard. The thing to understand here is that the module
> "sony-laptop" (which give you keys, etc. on VAIOs) also create a backlight
> device with "linux.sys_fspath". This "sys_fspath" only work on old graphic
> cards. "10-sony-laptop-brightness.fdi" remove this "linux.sys_fspath" since
> it is the wrong one for our models.
> 2009/8/2 Alex <email address hidden>
>
>> @Steve,
>> You are absolutely right on all your points.
>> I have 2 related to the bug udi:
>>
>> 1) Nvidia card pci
>> 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)
>>
>> 2) the backlight
>> udi = '/org/freedesktop/Hal/devices/computer_backlight'
>>   info.capabilities = {'laptop_panel'} (string list)
>>  info.category = 'laptop_panel'  (string)
>>   info.interfaces = {'org.freedesktop.Hal.Device.LaptopPanel'} (string
>> list)
>>   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)
>>   org.freedesktop.Hal.Device.LaptopPanel.method_argnames =
>> {'brightness_value', ''} (string list)
>>  org.freedesktop.Hal.Device.LaptopPanel.method_execpaths =
>> {'hal-system-lcd-set-brightness', 'hal-system-lcd-get-brightness'} (string
>> list)
>>  org.freedesktop.Hal.Device.LaptopPanel.method_names = {'SetBrightness',
>> 'GetBrightness'} (string list)
>>  org.freedesktop.Hal.Device.LaptopPanel.method_signatures = {'i', ''}
>> (string list)
>>
>> The first one (nvidia pci) is used in 10-sony-laptop-brightness.fdi to
>> match the video card by its primary_video.product.
>> The second one (the backlight) is used in 10-laptop-panel-mgmt-policy.fdi
>> to add necessary config.
>> In the latter fdi the following matching rules are used:
>>
>> <match key="info.category" string="laptop_panel">
>> <match key="laptop_panel.access_method" compare_ne="custom">
>> <match key="linux.sysfs_path" exists="false">
>>
>> According to the rules it should match the second udi (the
>> backlight),and as the udi does not contain "linux.sysfs_path" then
>> necessary attributes should be added. But on my (and most likely
>> benste's) config it does not. May be there is a bug in the process of
>> rules being applied? But if I change the last matching rule to
>>
>> <match key="linux.sysfs_path" exists="true">
>>
>> it works!
>>
>> Why do we need to check if "linux.sysfs_path" exists to apply the
>> config? Can we check for "laptop_panel.access_method"=sony-nvidia, as we
>> make this assingment in 10-sony-laptop-brightness.fdi?
>>
>> I guess the rule should look like this (I am not an expert, but the
>> complete beginner):
>>
>> <match key="laptop_panel.access_method" string="sony-nvidia">
>>
>> Your thoughts?
>>
>> P.S.
>> I've just checked the above rule. It does not work. But the following
>> <match key="laptop_panel.access_method" exists="true">
>> works!
>>
>> --
>> sony brighness on a geforce series older than 8 (nvclock works fine)
>> https://bugs.launchpad.net/bugs/277589
>> You received this bug notification because you are a direct subscriber
>> of the bug.
>>
>
>