Here the result:
5.7.12 work
5.8.14 work
5.9.14 not work
5.10.16 not work
I have now opened a issue on
Bug 211905
]]>Please post commands and their outputs in code tags.
]]>grep lt4120 /sys/bus/usb/devices/*/product
/sys/bus/usb/devices/1-3/product:HP lt4120 Snapdragon X5 LTE
sudo echo 0 > /sys/bus/usb/devices/1-3/bConfigurationValue
sudo echo 2 > /sys/bus/usb/devices/1-3/bConfigurationValue
usb-devices
T: Bus=01 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#= 2 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 3
P: Vendor=03f0 ProdID=9d1d Rev=02.28
S: Manufacturer=HP
S: Product=HP lt4120 Snapdragon X5 LTE
S: SerialNumber=0123456789ABCDEF
C: #Ifs= 5 Cfg#= 1 Atr=e0 MxPwr=500mA
I: If#=0x0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
cat: '/sys/bus/usb/devices/usb1/1-3/1-3:1.1/bInterfaceNumber': File or directory not found
cat: '/sys/bus/usb/devices/usb1/1-3/1-3:1.1/bAlternateSetting': File or directory not found
cat: '/sys/bus/usb/devices/usb1/1-3/1-3:1.1/bNumEndpoints': File or directory not found
cat: '/sys/bus/usb/devices/usb1/1-3/1-3:1.1/bInterfaceClass': File or directory not found
cat: '/sys/bus/usb/devices/usb1/1-3/1-3:1.1/bInterfaceSubClass': File or directory not found
cat: '/sys/bus/usb/devices/usb1/1-3/1-3:1.1/bInterfaceProtocol': File or directory not found
/usr/bin/usb-devices: Zeile 79: printf: (none): Invalid number.
I: If#=0x Alt= 0 #EPs= 0 Cls=() Sub= Prot= Driver=
I: If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
cat: '/sys/bus/usb/devices/usb1/1-3/1-3:1.3/bInterfaceNumber': File or directory not found
cat: '/sys/bus/usb/devices/usb1/1-3/1-3:1.3/bAlternateSetting': File or directory not found
cat: '/sys/bus/usb/devices/usb1/1-3/1-3:1.3/bNumEndpoints': File or directory not found
cat: '/sys/bus/usb/devices/usb1/1-3/1-3:1.3/bInterfaceClass': File or directory not found
I: If#=0x Alt= 0 #EPs= 0 Cls=00((none)) Sub= Prot= Driver=
I: If#=0x4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
sudo echo 1 > /sys/bus/usb/devices/1-3/bConfigurationValue
T: Bus=01 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#= 2 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 3
P: Vendor=03f0 ProdID=9d1d Rev=02.28
S: Manufacturer=HP
S: Product=HP lt4120 Snapdragon X5 LTE
S: SerialNumber=0123456789ABCDEF
C: #Ifs= 5 Cfg#= 1 Atr=e0 MxPwr=500mA
I: If#=0x0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
I: If#=0x1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
I: If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
I: If#=0x3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
I: If#=0x4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
sudo echo 3 > /sys/bus/usb/devices/1-3/bConfigurationValue
T: Bus=01 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#= 2 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 3
P: Vendor=03f0 ProdID=9d1d Rev=02.28
S: Manufacturer=HP
S: Product=HP lt4120 Snapdragon X5 LTE
S: SerialNumber=0123456789ABCDEF
C: #Ifs= 5 Cfg#= 1 Atr=e0 MxPwr=500mA
I: If#=0x0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
I: If#=0x1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
I: If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
I: If#=0x3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
I: If#=0x4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
If i use kernel 5.4.95-1-lts on arch linux the internal lte modem work without a problem -> it work with networkmanager
But if i use a 5.10.17 lts kernel or 5.10.16 kernel the modem doesnt work
lsusb
Bus 001 Device 002: ID 03f0:9d1d HP, Inc HP lt4120 Snapdragon X5 LTE
How can i i solve this issue ?
Thanks !
kernel 5.4.95-1-lts loaded:
usb-devices
T: Bus=01 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#= 2 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 3
P: Vendor=03f0 ProdID=9d1d Rev=02.28
S: Manufacturer=HP
S: Product=HP lt4120 Snapdragon X5 LTE
S: SerialNumber=0123456789ABCDEF
C: #Ifs= 3 Cfg#= 3 Atr=e0 MxPwr=500mA
I: If#=0x0 Alt= 0 #EPs= 1 Cls=02(commc) Sub=0e Prot=00 Driver=cdc_mbim
I: If#=0x1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I: If#=0x2 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
kernel 5.10
usb-devices
T: Bus=01 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#= 2 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 3
P: Vendor=03f0 ProdID=9d1d Rev=02.28
S: Manufacturer=HP
S: Product=HP lt4120 Snapdragon X5 LTE
S: SerialNumber=0123456789ABCDEF
C: #Ifs= 5 Cfg#= 1 Atr=e0 MxPwr=500mA
I: If#=0x0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
I: If#=0x1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
I: If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
I: If#=0x3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
I: If#=0x4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)