Drew at 08:41, 25 January 2018

2018-01-25T08:41:31Z

Drew: Created page with "Debian Weezy on Raspberry Pi == RPi CPU Tempurature ==

# /opt/vc/bin/vcgencmd measure_temp # cat /sys/class/thermal/thermal_zone0/temp 49768 # expr `cat /sys/class/therm..."

2013-12-22T02:50:39Z

Created page with "Debian Weezy on Raspberry Pi == RPi CPU Tempurature == <pre># /opt/vc/bin/vcgencmd measure_temp # cat /sys/class/thermal/thermal_zone0/temp 49768 # expr `cat /sys/class/therm..."

New page

Debian Weezy on Raspberry Pi

== RPi CPU Tempurature ==
<pre># /opt/vc/bin/vcgencmd measure_temp
# cat /sys/class/thermal/thermal_zone0/temp
49768
# expr `cat /sys/class/thermal/thermal_zone0/temp` / 1000 # divide by 1000 for C
50</pre>

== Force Sleep Mode / Screen off ==
<pre>Off: /opt/vc/bin/tvservice -o
On: /opt/vc/bin/tvservice -p</pre>

== HDMI Audio Issues ==
Append to /boot/config.txt;
<pre>hdmi_force_hotplug=1
hdmi_drive=2</pre>

== Reduce Wear Leveling ==
<pre>$ cat /etc/fstab
proc /proc proc defaults 0 0
/dev/mmcblk0p1 /boot vfat defaults 0 2
/dev/mmcblk0p2 / ext4 defaults,noatime 0 1
# a swapfile is not a swap partition, so no using swapon|off from here on, use dphys-swapfile swap[on|off] for that
tmpfs /var/log tmpfs defaults 0 0<pre>

http://www.raspberrypi.org/phpBB3/viewtopic.php?f=29&t=13889
<pre>sudo apt-get install lsof rsync; dpkg -i ramlog*.deb; reboot twice</pre>

== MP3 Plackback ==
<pre>sox, or rather AUDIODEV=hw:1 play
moc or mocp
mpd</pre>

== Software to Install ==
<pre>sudo apt-get install \
tightvncserver youtube-dl synergy transmission-daemon \
chromium \
nginx php5 php-apc php5-sqlite sqlite mailutils python dns-utils \
php5-cgi php5-fpm php5-cli</pre>

== raspi-config autologin not as user pi ==
By default when setting to enable straight to desktop, this script will make it pi;
<pre># /usr/bin/raspi-config
update-rc.d lightdm enable 2
sed /etc/lightdm/lightdm.conf -i -e "s/^#autologin-user=.*/autologin-user=pi/"</pre>

== RDP with rdesktop and xfreerdp ==
<pre>$ rdesktop -g 1280x720 -u drew -r sound=local 192.168.1.10
sound is choppy, clipboard works
-f for full, ctrl+alt+enter to exit
keymap is broken, found doesn't work??
$ xfreerdp -u drew -g 1280x720 -x l --plugin rdpsnd --data alsa -- 192.168.1.10
-x experience, l is for lan
-z is compression</pre>

== LXDE autostart synergyc ==
<pre># mkdir ~/.config/autostart
# cat ~/.config/autostart/synergyc.desktop
[Desktop Entry]
Type=Application
Exec=/usr/bin/synergyc 192.168.1.10</pre>

== Fix Time / Date ==
<pre>dpkg-reconfigure tzdata</pre>
^ set locale

== Sound ==
<pre># amixer get PCM
# amixer set PCM 20%</pre>
^ one off to set lower noise http://man.he.net/man1/amixer

<pre># alsamixer</pre>
^ tui to set PCM volume / sound card info

<pre># amixer cset numid=3 1</pre>
^ 1 for headphones, 0 for hdmi

== Video with omxplayer ==
<pre># omxplayer -o local <filename></pre>
^ head phones output

<pre># omxplayer -o hdmi <filename></pre>
^ hdmi output

<pre># omxplayer -r <filename></pre>
^ full screen, skewed though?

<pre># setterm -blank force && omxplayer filename
# setterm -blank poke</pre>
^ command on console so only the video shows (and not console text scroll back), poke gets it back

=== omxplayer - Key bindings ===
<pre>1 Increase Speed
2 Decrease Speed
j Previous Audio stream
k Next Audio stream
i Previous Chapter
o Next Chapter
n Previous Subtitle stream
m Next Subtitle stream
s Toggle subtitles
q Exit OMXPlayer
Space or p Pause/Resume
- Decrease Volume
+ Increase Volume
Left Seek -30
Right Seek +30
Down Seek -600
Up Seek +600</pre>

== Admin groups ==
be in these groups: s/:pi/:pi,drew/
<pre>drew@drew-rpi ~ $ grep pi /etc/group
adm:x:4:pi,drew
dialout:x:20:pi,drew
cdrom:x:24:pi,drew
sudo:x:27:pi,drew,drew
audio:x:29:pi,drew
video:x:44:pi,drew
plugdev:x:46:pi,drew
games:x:60:pi,drew
users:x:100:pi,drew
pi:x:1000:
netdev:x:105:pi,drew
input:x:999:pi,drew</pre>

RaspberryPi - Revision history

Drew at 08:41, 25 January 2018

Drew: Created page with "Debian Weezy on Raspberry Pi == RPi CPU Tempurature ==
# /opt/vc/bin/vcgencmd measure_temp # cat /sys/class/thermal/thermal_zone0/temp 49768 # expr `cat /sys/class/therm..."