| **Device** | **Status** | **Modules** | | Intel | Working | xf86-video-intel | | Nvidia | Working | nouveau *or* nvidia | | Ethernet | Working | r8169 | | Wireless | Working | ath9k | | Audio | Working | snd_hda_intel | | Touchpad | Working | xf86-input-synaptics | | Camera | Working | linux-uvc | | Card Reader | Working | rtsx_usb | | Bluetooth | Working | btusb | [ASUS N550JV](http://www.asus.com/Notebooks_Ultrabooks/N550JV/specifications/) - this article covers hardware specific configuration. All topics covered can be performed after an installation of Arch Linux has been finished and the machine rebooted into it. For a general overview of laptop-related articles and recommendations, see [Laptop](/index.php/Laptop "Laptop"). ## Contents * [1 Configuration](#Configuration) * [1.1 Video](#Video) * [1.1.1 Drivers](#Drivers) * [1.1.2 Brightness](#Brightness) * [1.2 Audio](#Audio) * [1.3 Keyboard](#Keyboard) * [1.3.1 Brightness](#Brightness_2) * [1.3.2 Incorrectly mapped buttons](#Incorrectly_mapped_buttons) * [1.4 Touchpad](#Touchpad) * [2 Troubleshooting](#Troubleshooting) * [2.1 Audio](#Audio_2) * [2.1.1 Dual boot](#Dual_boot) * [2.1.2 Bug](#Bug) * [2.1.3 Sound pops twice during shutdown and sleep](#Sound_pops_twice_during_shutdown_and_sleep) * [2.1.4 Crackling sound](#Crackling_sound) * [2.2 Failed to initialize the NVIDIA GPU](#Failed_to_initialize_the_NVIDIA_GPU) * [2.3 Messages during console login](#Messages_during_console_login) * [2.4 USB devices and sleep](#USB_devices_and_sleep) * [2.4.1 Battery charging issues](#Battery_charging_issues) * [2.5 Card reader does not detect cards](#Card_reader_does_not_detect_cards) * [3 Tips and tricks](#Tips_and_tricks) * [3.1 Fan control](#Fan_control) * [3.2 Enable full performance of GPU](#Enable_full_performance_of_GPU) * [3.3 Special keys for window managers](#Special_keys_for_window_managers) ## Configuration ### Video #### Drivers Install [bumblebee](/index.php/Bumblebee "Bumblebee") along with Nvidia and Intel drivers. #### Brightness In order to be able to adjust the screen brightness using `Fn+F5` and `Fn+F6` you need to set the [kernel parameter](/index.php/Kernel_parameter "Kernel parameter") `acpi_osi= ` (the space is required). ### Audio Install [PulseAudio](/index.php/PulseAudio "PulseAudio"). After installation, reboot the laptop to ensure all modules are loaded. Check if the fallback device is correctly set to *Built-in Audio Analog Stereo* with [pavucontrol](https://www.archlinux.org/packages/?name=pavucontrol). See [PulseAudio/Troubleshooting#Fallback device is not respected](/index.php/PulseAudio/Troubleshooting#Fallback_device_is_not_respected "PulseAudio/Troubleshooting") for more information. Also check for muted devices: ``` $ alsamixer -c PCH ``` **Note:** [alsa-utils](https://www.archlinux.org/packages/?name=alsa-utils) provides `alsamixer` and `amixer` shell programs. ### Keyboard #### Brightness Key mappings `Fn+F3` and `Fn+F4` should work with most [desktop environments](/index.php/Desktop_environments "Desktop environments") out of the box. If not, install [asus-kbd-backlight](https://aur.archlinux.org/packages/asus-kbd-backlight/), load kernel module `asus-nb-wmi` to control hotkeys, then [start and enable](/index.php/Enable "Enable") the `asus-kbd-backlight.service`. Now you can control the keyboard backlighting using: ``` $ asus-kbd-backlight up $ asus-kbd-backlight down $ asus-kbd-backlight max $ asus-kbd-backlight off $ asus-kbd-backlight night $ asus-kbd-backlight 2 $ asus-kbd-backlight show ``` #### Incorrectly mapped buttons `Media` and `Fn+F7` buttons are not mapped correctly. It is not necessary to remap `Fn+F7` shortcut, because it works without any additional configuration. Install [xorg-xmodmap](https://www.archlinux.org/packages/?name=xorg-xmodmap), which provides app `xmodmap`. Generate a xmodmap config file if you haven't done it already: ``` $ xmodmap -pke > ~/.Xmodmap ``` Then open it and locate keycode 234: `~/.Xmodmap` ``` ... keycode 233 = XF86MonBrightnessUp NoSymbol XF86MonBrightnessUp **keycode 234 = XF86AudioMedia NoSymbol XF86AudioMedia** keycode 235 = XF86Display NoSymbol XF86Display ... ``` Now move `XF86AudioMedia NoSymbol XF86AudioMedia` text on the empty keycode 248 and leave keycode 234 empty: `~/.Xmodmap` ``` ... **keycode 234 =** ... ... ... keycode 247 = **keycode 248 = XF86AudioMedia NoSymbol XF86AudioMedia** keycode 249 = ... ``` Optionally, for `Fn+F7` give some value on keycode 253. `~/.Xmodmap` ``` ... keycode 252 = **keycode 253 = XF86Launch0 NoSymbol XF86Launch0** keycode 254 = ... ``` The next step is apply changes: ``` $ xmodmap ~/.Xmodmap ``` Test with `xev` or try to bind something on media button. `Fn+F7` should be controlled by hardware and switch display without any additional configuration. Also, if you are satisfied, put the command above to [Xinitrc](/index.php/Xinitrc "Xinitrc"). `~/.xinitrc` ``` { sleep 10; xmodmap ~/.Xmodmap; } & ``` ### Touchpad Install [libinput](/index.php/Libinput "Libinput"). If there are any problems, try [Touchpad Synaptics](/index.php/Touchpad_Synaptics "Touchpad Synaptics"). ## Troubleshooting ### Audio #### Dual boot If you boot your laptop right after Windows to Linux, sound might only work through headphones jack, but not through speakers and subwoofer. The quick fix is to suspend your laptop and resume it back. #### Bug The internal speakers seems not to play any sound until volume is being increased significantly. This also occurs on Windows operation system as well as on Linux. #### Sound pops twice during shutdown and sleep Create and [enable](/index.php/Enable "Enable") the following two services: `/etc/systemd/system/beep-disable.service` ``` [Unit] Description=Unloads audio module to prevent beep on shutdown DefaultDependencies=no [Service] Type=oneshot ExecStart=/bin/sh -c 'rmmod snd_hda_intel' [Install] WantedBy=shutdown.target suspend.target ``` `/etc/systemd/system/beep-disable-wakeup.service` ``` [Unit] Description=Load sound module back on system resume After=suspend.target Wants=local-system-resume.service Before=local-system-resume.service [Service] Type=oneshot ExecStart=/bin/sh -c 'modprobe snd_hda_intel' [Install] WantedBy=suspend.target ``` #### Crackling sound Add `tsched=0` to pulseaudio config file as per instructions at [PulseAudio/Troubleshooting#Glitches, skips or crackling](/index.php/PulseAudio/Troubleshooting#Glitches.2C_skips_or_crackling "PulseAudio/Troubleshooting"). ### Failed to initialize the NVIDIA GPU If you receive error similar to this `Failed to initialize the NVIDIA GPU at PCI:1:0:0 (GPU fallen off the bus / RmInitAdapter failed!)`, see [here](/index.php/NVIDIA_Optimus#Failed_to_initialize_the_NVIDIA_GPU_at_PCI:1:0:0_.28GPU_fallen_off_the_bus_.2F_RmInitAdapter_failed.21.29 "NVIDIA Optimus"). ### Messages during console login After booting up, when Linux asks you to enter your login and password, some messages might appear similar to these: ``` Nouveau E[ PBUS][0000:01:00.0] MIMO write of 0x00000002 FAULT at 0x4188ac [ IBUS] Nouveau E[ DRM] Pointer to TMDS table invalid Nouveau E[ DRM] Pointer to flat panel table invalid ``` To resolve, refer to [#Drivers](#Drivers). ### USB devices and sleep **Note:** You might experience USB devices (e.g. mouse) are not being turned on immediately after wake up. Current 4.9 kernel (and probably further versions) does not have this issue and below fix might not be required Hibernate via systemd works out of the box when the swap space or file is correctly identified in the resume kernel parameter. However, even though the system suspends properly it will lock up when resuming. This is due to the USB controller not properly turning off on its own. Create two the following files as shown: `/etc/systemd/system/root-suspend.service` ``` [Unit] Description=Local system suspend actions Before=sleep.target [Service] Type=oneshot ExecStart=-/usr/bin/rmmod ehci_pci ; /usr/bin/rmmod ehci_hcd ; /usr/bin/rmmod xhci_pci ; /usr/bin/rmmod xhci_hcd [Install] WantedBy=sleep.target ``` `/etc/systemd/system/root-resume.service` ``` [Unit] Description=Local system resume actions After=suspend.target [Service] Type=oneshot ExecStart=/usr/bin/modprobe ehci_hcd ; /usr/bin/modprobe ehci_pci ; /usr/bin/modprobe xhci_hcd ; /usr/bin/modprobe xhci_pci [Install] WantedBy=suspend.target ``` Then [enable](/index.php/Enable "Enable") `root-suspend.service` and `root-resume.service` as root. #### Battery charging issues This battery in this laptop can only be accessed by removing the bottom of the entire laptop, which requires removing 10 TORX-5 screws. That there appears to be a power issue related to the recharging USB port (the USB port with a lightning bolt) under Linux. When an externally powered device is plugged into the charging USB port and the system is power cycled, the battery indicator will begin flashing orange and the system no longer recognizes or charges the battery. One way to reset the charging circuit is to force shutdown by holding the power button for a few seconds. See [this thread at the Ubuntu forums](http://ubuntuforums.org/showthread.php?t=2176915&page=4&p=13035724#post13035724) for other possible solutions. ### Card reader does not detect cards Due to unknown reasons, card reader does not detect cards. To resolve this, quickly pull out the card and insert it back for several times (leave inserted afterwards) and after few seconds card will be detected in your system. ## Tips and tricks ### Fan control See [Fan speed control](/index.php/Fan_speed_control "Fan speed control"). Here is a configuration file, which was tested on Asus N550JV and was used with `asus-nb-wmi` kernel module. It however might need some tweaking: `/etc/fancontrol` ``` INTERVAL=10 FCTEMPS=/sys/devices/platform/asus-nb-wmi/hwmon/hwmon[[:print:]]*/pwm1=/sys/devices/platform/coretemp.0/hwmon/hwmon[[:print:]]*/temp1_input FCFANS= /sys/devices/platform/asus-nb-wmi/hwmon/hwmon[[:print:]]*/pwm1=/sys/devices/platform/asus-nb-wmi/hwmon/hwmon[[:print:]]*/fan1_input MINTEMP=/sys/devices/platform/asus-nb-wmi/hwmon/hwmon[[:print:]]*/pwm1=50 MAXTEMP=/sys/devices/platform/asus-nb-wmi/hwmon/hwmon[[:print:]]*/pwm1=80 MINSTART=/sys/devices/platform/asus-nb-wmi/hwmon/hwmon[[:print:]]*/pwm1=40 MINSTOP=/sys/devices/platform/asus-nb-wmi/hwmon/hwmon[[:print:]]*/pwm1=10 ``` Here is a configuration file, which was tested on Asus N550JV and was used with `asus-fan` kernel module. It however might need some tweaking: `/etc/fancontrol` ``` INTERVAL=10 FCTEMPS=/sys/devices/platform/asus_fan/hwmon/hwmon[[:print:]]*/pwm1=/sys/devices/platform/coretemp.0/hwmon/hwmon[[:print:]]*/temp1_input /sys/devices/platform/asus_fan/hwmon/hwmon[[:print:]]*/pwm2=/sys/devices/platform/asus_fan/hwmon/hwmon[[:print:]]*/temp1_input FCFANS=/sys/devices/platform/asus_fan/hwmon/hwmon[[:print:]]*/pwm1=/sys/devices/platform/asus_fan/hwmon/hwmon[[:print:]]*/fan1_input /sys/devices/platform/asus_fan/hwmon/hwmon[[:print:]]*/pwm2=/sys/devices/platform/asus_fan/hwmon/hwmon[[:print:]]*/fan2_input MINTEMP=/sys/devices/platform/asus_fan/hwmon/hwmon[[:print:]]*/pwm1=50 /sys/devices/platform/asus_fan/hwmon/hwmon[[:print:]]*/pwm2=45 MAXTEMP=/sys/devices/platform/asus_fan/hwmon/hwmon[[:print:]]*/pwm1=80 /sys/devices/platform/asus_fan/hwmon/hwmon[[:print:]]*/pwm2=90 MINSTART=/sys/devices/platform/asus_fan/hwmon/hwmon[[:print:]]*/pwm1=40 /sys/devices/platform/asus_fan/hwmon/hwmon[[:print:]]*/pwm2=40 MINSTOP=/sys/devices/platform/asus_fan/hwmon/hwmon[[:print:]]*/pwm1=10 /sys/devices/platform/asus_fan/hwmon/hwmon[[:print:]]*/pwm2=10 ``` ### Enable full performance of GPU **Note:** This only applicable if you have BIOS 207 or BIOS 208 installed. BIOS 206 and earlier aren't affected. If you have BIOS 208 or 207 installed and tried to play something heavy, you noticed that for a few seconds game runs for 60fps, but most of the time - 20-40fps. This is strange behavior, which happens on Windows as well as on Linux. Even if the temperature limit is set to 90c, GPU throttling occurs at 75c or even all the time (with a feeling that GPU only runs at 60-70% of it's full potential). To fix this, flash [bios 206](https://www.asus.com/support/Download/3/529/0/2/dad5aYI8mC6sfoNV/41/). If your BIOS version is newer than this, you must follow [this guide](http://forums.legitreviews.com/viewtopic.php?t=41080), which requires you to have **Windows installed on this laptop**. **Note:** If you get error while installing WinFlash that this is only supported on Asus notebooks - first you need to install [ATKACPI driver](http://www.asus.com/support/Download/3/588/0/1/41/). ### Special keys for window managers If you prefer using a [Window manager](/index.php/Window_manager "Window manager") rather than a [Desktop environment](/index.php/Desktop_environment "Desktop environment"), most settings will not work out of the box, so you might need to manually bind every single `FN` button combination. How to bind, see [Extra keyboard keys in Xorg](/index.php/Extra_keyboard_keys_in_Xorg "Extra keyboard keys in Xorg"). FN buttons output | Buttons | Output | | Media Button | XF86AudioMedia (xmodmap) | | FN + F1 | XF86Sleep | | FN + F2 | XF86WLAN | | FN + F3 | XF86KbdBrightnessDown | | FN + F4 | XF86KbdBrightnessUp | | FN + F5 | XF86MonBrightnessDown | | FN + F6 | XF86MonBrightnessUp | | FN + F7 | XF86Launch0 (xmodmap) | | FN + F8 | XF86Display | | FN + F9 | XF86TouchpadToggle | | FN + F10 | XF86AudioMute | | FN + F11 | XF86AudioLowerVolume | | FN + F12 | XF86AudioRaiseVolume | | FN + C | XF86Launch1 | | FN + V | XF86WebCam | | FN + Space | XF86Launch6 | | FN + NumEnter | XF86Calculator | | FN + Left | XF86AudioPrev | | FN + Right | XF86AudioNext | | FN + Up | XF86AudioStop | | FN + Down | XF86AudioPlay | | FN + Delete | Insert |