Motile m142

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Hardware

root #lspci

00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Root Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 IOMMU
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0]
00:01.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0]
00:01.5 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0]
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus A
00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus B
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 61)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 7
01:00.0 Non-Volatile memory controller: Micron/Crucial Technology Device 2263 (rev 03)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
03:00.0 Network controller: Intel Corporation Dual Band Wireless-AC 3168NGW [Stone Peak] (rev 10)
04:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Picasso (rev c2)
04:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP Audio Controller
04:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) Platform Security Processor
04:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Raven USB 3.1
04:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Raven USB 3.1
04:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) HD Audio Controller
05:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 61)

CPU

The CPU is an AMD Ryzen 5 3500U with four cores.

user $cat /proc/cpuinfo

processor	: 0
vendor_id	: AuthenticAMD
cpu family	: 23
model		: 24
model name	: AMD Ryzen 5 3500U with Radeon Vega Mobile Gfx
stepping	: 1
microcode	: 0x8108102
cpu MHz		: 1506.542
cache size	: 512 KB
physical id	: 0
siblings	: 8
core id		: 0
cpu cores	: 4
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb hw_pstate sme ssbd sev ibpb vmmcall fsgsbase bmi1 avx2 smep bmi2 rdseed adx smap clflushopt sha_ni xsaveopt xsavec xgetbv1 xsaves clzero irperf xsaveerptr arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif overflow_recov succor smca
bugs		: sysret_ss_attrs null_seg spectre_v1 spectre_v2 spec_store_bypass
bogomips	: 4191.95
TLB size	: 2560 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 43 bits physical, 48 bits virtual
power management: ts ttp tm hwpstate eff_freq_ro [13] [14]

Graphics

The CPU provides Radeon Vega Mobile graphics, which claims 2Gb of main memory for video. Follow the instructions in the AMDGPU article.

root #lspci -k -s 04:00.0

04:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Picasso (rev c2)
        Subsystem: Tongfang Hongkong Limited Picasso
        Kernel driver in use: amdgpu
        Kernel modules: amdgpu

Wireless

root #lspci -k -s 03:00.0

03:00.0 Network controller: Intel Corporation Dual Band Wireless-AC 3168NGW [Stone Peak] (rev 10)
        Subsystem: Intel Corporation Dual Band Wireless-AC 3168NGW [Stone Peak]
        Kernel driver in use: iwlwifi
        Kernel modules: iwlwifi

The AC3168NGW wifi works with kernel version 5.8 and 5.4. The disable wireless key (Fn-F4) works through uefi and does not require kernel support.

KERNEL

Device Drivers  --->
    [*] Network device support  --->
        [*] Wireless LAN  --->
            <M> Intel Wireless WiFi Next Gen AGN - Wireless-N/Advanced-N/Ultimate-N (iwlwifi)
                <M> Intel Wireless WiFi MVM Firmware support

Sound

The laptop features AMD/Realtek HD audio.

root #lspci -k -s 04:00.1

04:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP Audio Controller
        Subsystem: Tongfang Hongkong Limited Raven/Raven2/Fenghuang HDMI/DP Audio Controller
        Kernel driver in use: snd_hda_intel

Configure ALSA with the following driver settings:

KERNEL

Device Drivers --->
    <*> Sound card support
        <*> Advanced Linux Sound Architecture --->
            HD-Audio  --->
                -*- Allow dynamic codec reconfiguration
                [*] Support initialization patch loading for HD-audio
                <*> Build Realtek HD-audio codec support
                <*> Build HDMI/DisplayPort HD-audio codec support
                -*- Enable generic HD-audio codec parser
          (2048) Pre-allocated buffer size for HD-audio driver

Touchpad

The laptop's touchpad will probably be a Tongfang model, similar to Elan touchpads, and may not be detected by system tools, including lspci.

To enable it, use the following kernel configuration settings:

KERNEL

Processor type and features  --->
    [*] AMD ACPI2Platform devices support
Device Drivers  --->
    -*- Pin controllers  --->
        <*> AMD GPIO pin control
    HID support  --->
        Special HID drivers  --->
            <*> HID Multitouch panels
        I2C HID support  --->
            <*> HID over I2C transport layer
    I2C support  --->
        I2C Hardware Bus support  --->
            <*> AMD MP2 PCIe
            <*> Synopsys DesignWare Platform
            <*> Synopsys DesignWare PCI
    Input device support  --->
        Mice  --->
            <*> ELAN I2C Touchpad support
            [*] Enable I2C support
            [*] Enable SMbus support

Keyboard

Keyboard backlight adjustment is handled through uefi, and does not require kernel support.