HP Pavilion 15-au624tx

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Information about how to install/configure Gentoo GNU/Linux in HP Pavillion au624tx Notebook


user $lscpu
Architecture:                    x86_64
CPU op-mode(s):                  32-bit, 64-bit
Byte Order:                      Little Endian
Address sizes:                   39 bits physical, 48 bits virtual
CPU(s):                          4
On-line CPU(s) list:             0,1
Off-line CPU(s) list:            2,3
Thread(s) per core:              1
Core(s) per socket:              2
Socket(s):                       1
NUMA node(s):                    1
Vendor ID:                       GenuineIntel
CPU family:                      6
Model:                           142
Model name:                      Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz
Stepping:                        9
CPU MHz:                         800.033
CPU max MHz:                     3100.0000
CPU min MHz:                     400.0000
BogoMIPS:                        5399.81
Virtualization:                  VT-x
L1d cache:                       64 KiB
L1i cache:                       64 KiB
L2 cache:                        512 KiB
L3 cache:                        3 MiB
NUMA node0 CPU(s):               0,1
Vulnerability Itlb multihit:     KVM: Mitigation: Split huge pages
Vulnerability L1tf:              Mitigation; PTE Inversion; VMX conditional cach
                                 e flushes, SMT disabled
Vulnerability Mds:               Mitigation; Clear CPU buffers; SMT disabled
Vulnerability Meltdown:          Mitigation; PTI
Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled v
                                 ia prctl and seccomp
Vulnerability Spectre v1:        Mitigation; usercopy/swapgs barriers and __user
                                  pointer sanitization
Vulnerability Spectre v2:        Mitigation; Full generic retpoline, IBPB condit
                                 ional, IBRS_FW, RSB filling
Vulnerability Srbds:             Mitigation; Microcode
Vulnerability Tsx async abort:   Not affected
Flags:                           fpu vme de pse tsc msr pae mce cx8 apic sep mtr
                                 r pge mca cmov pat pse36 clflush dts acpi mmx f
                                 xsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rd
                                 tscp lm constant_tsc art arch_perfmon pebs bts 
                                 rep_good nopl xtopology nonstop_tsc cpuid aperf
                                 mperf pni pclmulqdq dtes64 monitor ds_cpl vmx e
                                 st tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_
                                 1 sse4_2 x2apic movbe popcnt tsc_deadline_timer
                                  aes xsave avx f16c rdrand lahf_lm abm 3dnowpre
                                 fetch cpuid_fault epb invpcid_single pti ssbd i
                                 brs ibpb stibp tpr_shadow vnmi flexpriority ept
                                  vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep
                                  bmi2 erms invpcid mpx rdseed adx smap clflusho
                                 pt intel_pt xsaveopt xsavec xgetbv1 xsaves dthe
                                 rm ida arat pln pts hwp hwp_notify hwp_act_wind
                                 ow hwp_epp md_clear flush_l1d


root #lspci
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 02)
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 620 (rev 02)
00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 02)
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21)
00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] (rev 21)
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #1 (rev f1)
00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 (rev f1)
00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #6 (rev f1)
00:1d.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #9 (rev f1)
00:1d.3 PCI bridge: Intel Corporation Device 9d1b (rev f1)
00:1f.0 ISA bridge: Intel Corporation Sunrise Point-LP LPC Controller (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
01:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 940MX] (rev a2)
02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS522A PCI Express Card Reader (rev 01)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller (rev 0a)
05:00.0 Network controller: Intel Corporation Dual Band Wireless-AC 3168NGW [Stone Peak] (rev 10)


user $lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 8087:0aa7 Intel Corp. 
Bus 001 Device 002: ID 0408:5090 Quanta Computer, Inc. HP Wide version HD
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub



WiFi and BLuetooth

The Linux firmware package is needed for wifi adapter to work.

It can be obtained by installing the Linux firmware package: sys-firmware/linux-firmware. For more info see iwlwifi.


Intel released microcode updates that fixes fault on processors. Install the officially published microcode package sys-firmware/intel-microcode. For more info see Intel microcode.


Recommended kernel config for sys-linux/gentoo-sources. More info at Kernel.

This config is last tested on Linux Kernel sys-linux/gentoo-sources 5.4.60

Kernel config being maintained at au624tx_defconfig


Compiler settings

More info is available at:

FILE /etc/portage/make.conf
# O2 for super-safe output
CFLAGS="-march=native -O2 -pipe"
# Dual-core with enabled Hyper-Threading technology - 4 logical processors
# AMD64 architecture

Packages settings

For more info: CPU_FLAGS_X86

FILE /etc/portage/make.conf
# Obtained via cpuinfo2cpuflags-x86
CPU_FLAGS_X86="aes avx2 mmx popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3 mmxext avx"
USE flags

With Intel Modesetting DDX as video driver and libinput as input driver add the USE flags glamor and libinput.

FILE /etc/portage/make.conf
# Intel kabylake
VIDEO_CARDS="intel i965"
VIDEO_CARDS="nouveau" ## only if you are going to configure dedicated gpu 
# Input devices
# Useflags

Utils and Extras

Enabling Mute LED light

Create the following file:-

FILE /etc/modprobe.d/snd-hda-intel.conf
## Enabling Mute LED for Hp Pavillion Notebooks Containing Realtek ALC295 Audio Card
options snd-hda-intel model=alc295-hp-x360

Optimize system

Use app-laptop/laptop-mode-tools, For more info check Power_management

Extra notes on Uefi settings

Do not disable "Fan Always ON" from UEFI settings, since Operating Systems (Other than Windows) are not able to disable ACPI fan, causing battery drain even after shutting down.