Hi:

    I am new to Armbian Buster. I understand the legacy h3consumption is gone now. I wonder if I can do something similar under Armbian Buster like:

1. only allow 1 or 2 core

2. lower ram frequency

3. disable hdmi

On 5/8/2020 at 10:34 AM, tbsky said:

 

Hi:

    I am new to Armbian Buster. I understand the legacy h3consumption is gone now. I wonder if I can do something similar under Armbian Buster like:

1. only allow 1 or 2 core

2. lower ram frequency

3. disable hdmi

Add maxcpus=1 (usbcore.nousb) to kernel cmdline or e.g. echo 0 >/sys/devices/system/cpu/cpu3/online

Blacklisting modules is safe;

# cat >/etc/modprobe.d/blacklist.conf

blacklist cfg80211
blacklist ip_tables
blacklist lima
blacklist snd
blacklist snd_pcm
blacklist snd_pcm_dmaengine
blacklist snd_soc_core
blacklist snd_soc_simple_card
blacklist snd_soc_simple_card_utils
blacklist snd_timer
blacklist soundcore
blacklist sun4i_i2s
blacklist sun8i_adda_pr_regmap
blacklist sun8i_codec_analog
blacklist sunxi_cedrus
blacklist v4l2_mem2mem

^D

Note I do use headless, no usb no wifi no network-manager, you will need to adapt the blacklist according to your needs (board, used features).

 

 

On 5/9/2020 at 4:49 PM, xwiggen said:

Note I do use headless, no usb no wifi no network-manager, you will need to adapt the blacklist according to your needs (board, used features).

 

 

  thanks a lot for the hint. my usage is headless too. no wifi no network-manager but maybe with usb sometimes.

  your blacklist would be great help.

5 hours ago, tbsky said:

 

  thanks a lot for the hint. my usage is headless too. no wifi no network-manager but maybe with usb sometimes.

  your blacklist would be great help.

no network-manager is easy;

# cat >/etc/network/interfaces.d/eth0

auto eth0

iface eth0 inet dhcp

iface eth0 inet6 auto

 

# dpkg -P network-manager wpasupplicant crda wireless-tools wireless-regdb libiw && reboot