Difference between revisions of "ASUS Eee PC 1025c"

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(Created page with "==Screen Brightness Keys== ===acpi=== Setting brightness in /sys/class/backlight/acpi_video0/ with the scripts for acpid did change the va...")
 
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==Screen Brightness Keys==
+
[[Category:ASUS]]
−
===acpi===
+
{{Poor writing|}}
−
Setting brightness in /sys/class/backlight/acpi_video0/ with the scripts for [[acpid#Enabling_backlight_control|acpid]] did change the values of the files ''brightness'' and ''actual_brightness'' but did not have any effect on current screen brightness.
+
{{Note|This laptop uses a [[Poulsbo]] GPU. Hardware acceleration for GPU-related tasks is unsupported. Use the VESA display driver.}}
  
−
Set the following as kernel parameters in your bootloader (see [[Backlight#ACPI|here]])
+
== Bootloader ==
−
acpi_osi=Linux acpi_backlight=vendor
 
  
−
To make this permant...
+
Use i686 even if Intel ARK mentions support for Intel 64. The Arch ISO will detect i686.
  
−
Now there is a folder ''eeepc-wmi'' in /sys/class/backlight and the scripts need to be updated
+
For BIOS legacy boot, create a [[USB flash installation media#Using_dd|USB stick with dd]]. Press F2 to go into the boot menu. Choose the entry for your USB stick that doesn't say "UEFI:".
−
{{hc|/etc/acpi/actions/bl_up.sh|<nowiki>
+
The BIOS gives an option for UEFI booting but the option seems to be broken.
−
   #!/bin/sh
+
 
−
   bl_device=/sys/class/backlight/eeepc-wmi/brightness
+
== Audio ==
−
   echo $(($(cat $bl_device)+1)) >$bl_device
+
 
 +
=== Mono format ===
 +
 
 +
In case of missing voices, play all sounds in mono format. Using [[ALSA]] add to {{ic|.asoundrc}}:
 +
{{hc|~/.asoundrc|2=<nowiki>
 +
pcm.card0 {
 +
   type hw
 +
  card 0
 +
}
 +
 
 +
ctl.card0 {
 +
  type hw
 +
  card 0
 +
}
 +
 
 +
pcm.monocard {
 +
  slave.pcm card0
 +
  slave.channels 2
 +
# type plug
 +
   type route
 +
   ttable {
 +
  # Copy both input channels to output channel 0 (Left).
 +
    0.0 1
 +
    1.0 1
 +
  # Send nothing to output channel 1 (Right).
 +
    0.1 0
 +
    1.1 0
 +
  }
 +
}
 +
 
 +
ctl.monocard {
 +
  type hw
 +
  card 0
 +
}
 +
 
 +
pcm.!default monocard
 
</nowiki>}}
 
</nowiki>}}
  
−
{{hc|/etc/acpi/actions/bl_down.sh|<nowiki>
+
Save and reload ALSA.
−
   #!/bin/sh
+
 
−
  bl_device=/sys/class/backlight/eeepc-wmi/brightness
+
To set mono in a [[PulseAudio]], run:
−
  echo $(($(cat $bl_device)-1)) >$bl_device
+
 
 +
  $ pacmd list-sinks | grep name | head -n1
 +
 
 +
To get the master device name. The output of command will look like this:
 +
 
 +
  name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
 +
 
 +
Put device name (in my case ''alsa_output.pci-0000_00_1b.0.analog-stereo'') in field 'master' of the command below:
 +
 
 +
  $ pacmd load-module module-remap-sink sink_name=mono master=alsa_output.pci-0000_00_1b.0.analog-stereo channels=2 channel_map=front-right,mono
 +
 
 +
This only works if PulseAudio is running. To make this permanent, add the pacmd argument last to {{ic|/etc/pulse/default.pa}}:
 +
 
 +
  # echo "load-module module-remap-sink sink_name=mono master=alsa_output.pci-0000_00_1b.0.analog-stereo channels=2 channel_map=front-right,mono" >> /etc/pulse/default.pa
 +
 
 +
== HDMI ==
 +
 
 +
=== Video ===
 +
 
 +
You have to change the [[Poulsbo|video driver]].
 +
If the HDMI cable is plugged in, it is enabled  on boot. If plugged in after boot, use [[xrandr]] to enable the second monitor:
 +
 
 +
# xrandr --output DVI-0 --auto
 +
 
 +
=== Audio ===
 +
 
 +
You need to know the number of your sound card and the the HDMI device number:
 +
 
 +
{{hc|aplay -l|2=<nowiki>
 +
Karte 0: Intel [HDA Intel], Gerät 0: ALC269VB Analog [ALC269VB Analog]
 +
  Sub-Geräte: 1/1
 +
   Sub-Gerät #0: subdevice #0
 +
Karte 0: Intel [HDA Intel], Gerät 3: HDMI 0 [HDMI 0]
 +
  Sub-Geräte: 1/1
 +
  Sub-Gerät #0: subdevice #0
 +
</nowiki>}}
 +
 
 +
==== Global ====
 +
 
 +
In {{ic|/usr/share/alsa/alsa.conf}} search the lines
 +
 
 +
default.pcm.card 0
 +
default.pcm.device 0
 +
 
 +
If you change the numbers to your card and device (in my case card is 0 and device is 3) and reboot, the audio output switches to HDMI.
 +
 
 +
==== User specific ====
 +
 
 +
See [[Advanced Linux Sound Architecture#HDMI Output Does Not Work]]{{Broken section link}}.
 +
 
 +
==== Dynamic ====
 +
 
 +
The audio device can also be configured with {{ic|/etc/asound.conf}}
 +
So you can create a script that links asound.conf to a configuration depending on the hdmi cable plugged in or not: (for some reason my HDMI device is listed as DVI)
 +
 
 +
{{hc|hdmi_switched.sh|2=<nowiki>
 +
#! /bin/bash
 +
hdmi_status="$(cat /sys/class/drm/card0-DVI-D-1/status)"
 +
ln -f "/etc/alsa/hdmi_$hdmi_status" /etc/alsa/asound.conf
 +
alsactl restore
 +
</nowiki>}}
 +
 
 +
Configuration files:
 +
{{hc|hdmi_connected|2=<nowiki>
 +
pcm.!default {
 +
      type hw
 +
      card 0
 +
      device 3
 +
}
 +
</nowiki>}}
 +
 
 +
{{hc|hdmi_disconnected|2=<nowiki>
 +
pcm.!default {
 +
      type hw
 +
      card 0
 +
      device 0
 +
}
 
</nowiki>}}
 
</nowiki>}}
 +
 +
Create a symbolic link to /etc/asound.conf
 +
 +
ln -s /etc/alsa/asound.conf /etc/asound.conf
 +
 +
If the user is allowed to run the hdmi_switch.sh script and is also allowed to change files in /etc/alsa folder you can bind that script to a key :D
 +
If you also want to change to monitor read [[Advanced_Linux_Sound_Architecture#Using_udev_to_automatically_turn_HDMI_audio_on_or_off|this]]{{Broken section link}}.
 +
 +
== Screen Brightness ==
 +
 +
The backlight directory is /sys/class/backlight/acpi_video0. The display keys are now handled by the kernel.

Revision as of 12:02, 6 August 2016

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Reason: (Discuss in Talk:ASUS Eee PC 1025c#)
Note: This laptop uses a Poulsbo GPU. Hardware acceleration for GPU-related tasks is unsupported. Use the VESA display driver.

Bootloader

Use i686 even if Intel ARK mentions support for Intel 64. The Arch ISO will detect i686.

For BIOS legacy boot, create a USB stick with dd. Press F2 to go into the boot menu. Choose the entry for your USB stick that doesn't say "UEFI:". The BIOS gives an option for UEFI booting but the option seems to be broken.

Audio

Mono format

In case of missing voices, play all sounds in mono format. Using ALSA add to .asoundrc: 

~/.asoundrc
pcm.card0 {
  type hw
  card 0
}

ctl.card0 {
  type hw
  card 0
}

pcm.monocard {
  slave.pcm card0
  slave.channels 2
#  type plug
  type route
  ttable {
   # Copy both input channels to output channel 0 (Left). 
    0.0 1
    1.0 1
   # Send nothing to output channel 1 (Right). 
    0.1 0
    1.1 0
  }
}

ctl.monocard {
  type hw
  card 0
} 

pcm.!default monocard

Save and reload ALSA.

To set mono in a PulseAudio, run: 

 $ pacmd list-sinks | grep name | head -n1

To get the master device name. The output of command will look like this: 

 name: <alsa_output.pci-0000_00_1b.0.analog-stereo>

Put device name (in my case alsa_output.pci-0000_00_1b.0.analog-stereo) in field 'master' of the command below: 

 $ pacmd load-module module-remap-sink sink_name=mono master=alsa_output.pci-0000_00_1b.0.analog-stereo channels=2 channel_map=front-right,mono

This only works if PulseAudio is running. To make this permanent, add the pacmd argument last to /etc/pulse/default.pa: 

 # echo "load-module module-remap-sink sink_name=mono master=alsa_output.pci-0000_00_1b.0.analog-stereo channels=2 channel_map=front-right,mono" >> /etc/pulse/default.pa

HDMI

Video

You have to change the video driver. If the HDMI cable is plugged in, it is enabled on boot. If plugged in after boot, use xrandr to enable the second monitor: 

# xrandr --output DVI-0 --auto

Audio

You need to know the number of your sound card and the the HDMI device number: 

aplay -l
Karte 0: Intel [HDA Intel], Gerät 0: ALC269VB Analog [ALC269VB Analog]
  Sub-Geräte: 1/1
  Sub-Gerät #0: subdevice #0
Karte 0: Intel [HDA Intel], Gerät 3: HDMI 0 [HDMI 0]
  Sub-Geräte: 1/1
  Sub-Gerät #0: subdevice #0

Global

In /usr/share/alsa/alsa.conf search the lines 

default.pcm.card 0
default.pcm.device 0

If you change the numbers to your card and device (in my case card is 0 and device is 3) and reboot, the audio output switches to HDMI.

User specific

See Advanced Linux Sound Architecture#HDMI Output Does Not Work[broken link: invalid section].

Dynamic

The audio device can also be configured with /etc/asound.conf So you can create a script that links asound.conf to a configuration depending on the hdmi cable plugged in or not: (for some reason my HDMI device is listed as DVI) 

hdmi_switched.sh
#! /bin/bash
hdmi_status="$(cat /sys/class/drm/card0-DVI-D-1/status)"
ln -f "/etc/alsa/hdmi_$hdmi_status" /etc/alsa/asound.conf
alsactl restore

Configuration files: 

hdmi_connected
pcm.!default {
      type hw
      card 0
      device 3 
}

hdmi_disconnected
pcm.!default {
      type hw
      card 0
      device 0 
}

Create a symbolic link to /etc/asound.conf 

ln -s /etc/alsa/asound.conf /etc/asound.conf

If the user is allowed to run the hdmi_switch.sh script and is also allowed to change files in /etc/alsa folder you can bind that script to a key :D If you also want to change to monitor read this[broken link: invalid section].

Screen Brightness

The backlight directory is /sys/class/backlight/acpi_video0. The display keys are now handled by the kernel.

Retrieved from "https://wiki.archlinux.org/index.php?title=ASUS_Eee_PC_1025c&oldid=444684"