ASUS X551MA

Hardware
  • Platform: Bay Trail M (Atom)
  • CPU: Intel(R) Pentium(R) CPU N3520 @ 2.16GHz (quad core)
  • RAM: DDR3 1333MHz 4096 MB
  • SCREEN: 15.6"
  • VIDEO: Intel GMA HD 1366x768
  • HDD: 500 GB TOSHIBA MQ01ABF050 5400R SATA
  • Wi-fi: BCM943142HM 802.11b/g/n (+ Bluetooth 4.0)
  • Network: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 06)
  • DVD-RW
  • 1xUSB 2.0, 1xUSB 3.0, 1xHDMI, 1xD-sub, 1xEthernet, Cardreader, Camera

Settings

Video

For Intel GMA HD install: xf86-video-intel

LAN

Works out of the box

Wi-fi

Install from AUR: broadcom-wl or (better) broadcom-wl-dkms

Audio

Works out of the box. KDE: Install kmix

Touchpad

Works out of the box

Brightness

Fn+F5/Fn+F6 controls display brightness. Kernel parameter: acpi_osi= acpi_backlight=native For example for the systemd-boot EFI boot manager:

KDE: install

Webcam

Works out of the box. Tested at online webcam tester in Chromium.

Bluetooth

Bluetooth 4.0 is in combo wireless chip BCM43142.

Install: and

In spite of the bluetooth module works:

# hciconfig -a
hci0:   Type: Primary  Bus: USB
       BD Address: A4:DB:30:BB:2F:C1  ACL MTU: 1021:8  SCO MTU: 64:1
       DOWN 
       RX bytes:872 acl:0 sco:0 events:35 errors:0
       TX bytes:383 acl:0 sco:0 commands:35 errors:0
       Features: 0xff 0xfe 0xcf 0xfe 0xdb 0xff 0x7b 0x87
       Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 
       Link policy: RSWITCH HOLD SNIFF 
       Link mode: SLAVE ACCEPT 

# hciconfig hci0 up
# hciconfig -a

hci0:   Type: Primary  Bus: USB
       BD Address: A4:DB:30:BB:2F:C1  ACL MTU: 1021:8  SCO MTU: 64:1
       UP RUNNING PSCAN ISCAN 
       RX bytes:1488 acl:0 sco:0 events:72 errors:0
       TX bytes:1091 acl:0 sco:0 commands:72 errors:0
       Features: 0xff 0xfe 0xcf 0xfe 0xdb 0xff 0x7b 0x87
       Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 
       Link policy: RSWITCH HOLD SNIFF 
       Link mode: SLAVE ACCEPT 
       Name: 'thinkbali'
       Class: 0x00010c
       Service Classes: Unspecified
       Device Class: Computer, Laptop
       HCI Version: 4.0 (0x6)  Revision: 0xac
       LMP Version: 4.0 (0x6)  Subversion: 0x210b
       Manufacturer: Broadcom Corporation (15)

Sometimes it is needed to run:

# rfkill unblock bluetooth
works correctly.

Here https://forum.libreelec.tv/thread/10463-cannot-get-wireless-bt-to-work-on-ecs-liva-mini/?postID=68391 can be found a firmware for BCM43142 - BCM.hcd.

# unzip BCM.zip
# cp BCM.hcd /lib/firmware/brcm/

After restart:

But I felt no any difference without or with firmware.

Card Reader

Works out of the box. Tested with SD card 512 Mb.

Dual boot with Windows

To boot Windows 7 it is needed to switch on CSM at BIOS. Otherwise Windows boot hangs at logo. Set the BIOS setting OS Selection in the Advanced menu to Windows 7.

Freezing on 4.x kernels

Pentium N3520 processor is affected by the c-state bug: https://bugzilla.kernel.org/show_bug.cgi?id=109051

Workaround: add kernel parameter.

gollark: I thought it might be a filesystem issue of some sort, but then it would just not see it at all, surely?
gollark: Troubling!
gollark: So do you know of the """error -117"""?
gollark: Besides, we have countermeasures against debris anyway.
gollark: Well, you could fire stuff from higher orbits, or indeed lower orbits or basically any orbits, but it would be hard to hit.
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