Hello!
I have a TongFang laptop (GM5MP0W), which is experiencing issues with the tuxedo_io module.
With the module loaded, the keyboard's FN combos work with the exception of the backlight. Pressing the keys is recognized by GNOME as the correct combination to increase or decrease brightness as the symbol is displayed on-screen. The keyboard backlight brightness, however, doesn't change. On the journal, I see the following entry coming-up whenever I press the combo:
gsd-power[3073]: gsd_power_backlight_abs_to_percentage: assertion 'max > min' failed
Commenting out the following line in tongfang_wmi.h fixes the issue but I wonder if that is breaking something else because for example, while changing the backlight works, the on-screen symbol doesn't show anymore.
uw_ec_write_addr(0x41, 0x07, 0x01, 0x00, ®_write_return);
It also made sense to then comment out
uw_ec_write_addr(0x41, 0x07, 0x00, 0x00, ®_write_return);
Fan control (which seems was the reason behind setting manual mode) is apparently following the profiles. I'm not sure this model requires entering "manual mode" and if it does, then I'd like to try fixing the keyboard backlight issue.
As for the keyboard itself, is an ITE keyboard supporting per-key RGB colors. Here are the details:
lsusb -d 048d:6004 -v
Bus 001 Device 003: ID 048d:6004 Integrated Technology Express, Inc. ITE Device(8291)
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x048d Integrated Technology Express, Inc.
idProduct 0x6004
bcdDevice 0.03
iManufacturer 1 ITE Tech. Inc.
iProduct 2 ITE Device(8291)
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x003b
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xc0
Self Powered
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 1 Keyboard
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.10
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 23
Report Descriptor: (length is 23)
Item(Global): Usage Page, data= [ 0x89 0xff ] 65417
(null)
Item(Local ): Usage, data= [ 0x10 ] 16
(null)
Item(Main ): Collection, data= [ 0x01 ] 1
Application
Item(Global): Report ID, data= [ 0x5a ] 90
Item(Local ): Usage, data= [ 0x01 ] 1
(null)
Item(Global): Logical Minimum, data= [ 0x00 ] 0
Item(Global): Logical Maximum, data= [ 0xff 0x00 ] 255
Item(Global): Report Size, data= [ 0x08 ] 8
Item(Global): Report Count, data= [ 0x10 ] 16
Item(Main ): Feature, data= [ 0x00 ] 0
Data Array Absolute No_Wrap Linear
Preferred_State No_Null_Position Non_Volatile Bitfield
Item(Main ): End Collection, data=none
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.10
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 31
Report Descriptor: (length is 31)
Item(Global): Usage Page, data= [ 0x03 0xff ] 65283
(null)
Item(Local ): Usage, data= [ 0x01 ] 1
(null)
Item(Main ): Collection, data= [ 0x01 ] 1
Application
Item(Global): Logical Minimum, data= [ 0x00 ] 0
Item(Global): Logical Maximum, data= [ 0xff 0x00 ] 255
Item(Global): Report Size, data= [ 0x08 ] 8
Item(Global): Report Count, data= [ 0x40 ] 64
Item(Local ): Usage, data= [ 0x20 ] 32
(null)
Item(Main ): Input, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position Non_Volatile Bitfield
Item(Local ): Usage, data= [ 0x21 ] 33
(null)
Item(Main ): Output, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position Non_Volatile Bitfield
Item(Local ): Usage, data= [ 0x22 ] 34
(null)
Item(Global): Report Count, data= [ 0x08 ] 8
Item(Main ): Feature, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position Non_Volatile Bitfield
Item(Main ): End Collection, data=none
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
can't get device qualifier: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
Device Status: 0x0001
Self Powered
Anything I should be testing out which might help to figure out the issue?
Thanks!
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