Increase gpu_mem to avoid hangs

[mangtronix]

Video playback was hanging for me after a few minutes and I was able to resolve it by increasing the GPU memory in /boot/config.txt. This could be added to the install script. gpu_mem=128 seems to work fine for me, but 256 also seems recommended (http://kodi.wiki/view/Raspberry_Pi_FAQ#Memory_Usage)

Issue: video hanging after a few minutes of playback OS: Raspbian Jessie Pixel HW: RPi 3 Fix: add "gpu_mem=128" to /boot/config.txt

pi@raspberrypi:~ $ cat /etc/os-release PRETTY_NAME="Raspbian GNU/Linux 8 (jessie)" NAME="Raspbian GNU/Linux" VERSION_ID="8" VERSION="8 (jessie)" ID=raspbian ID_LIKE=debian HOME_URL="http://www.raspbian.org/" SUPPORT_URL="http://www.raspbian.org/RaspbianForums" BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs"

[Anonymousdog]

FWIW, my code for doing this for various RPi hardware (in this project) is:

# Set a reasonable GPU memory allocation
# Determine total physical memory
# System Memory
sysmem="`free -m | grep Mem: | awk '$1=$1' | cut -f 2 -d " "`"
# GPU Memory
gpumem="`sudo raspi-config nonint get_config_var gpu_mem /boot/config.txt`"
# Total Mem
physmem=$((gpumem + sysmem))
if [ "$physmem" -lt "500" ]; then
    split=96
    else
    if [ "$physmem" -lt "1000" ]; then
        split=192
        else
        split=256
    fi
fi
# Ask whether there's a custom split desired
echo -n "Enter a custom gpu split if desired [gpu memory in MB] or [Enter] to use recommended split"
read
if [ "$REPLY" != "" ]; then
    if [ "$REPLY" -ge "64" -a "$REPLY" -le "512" ]; then
        split="$REPLY"
    fi
fi
# Set the split
if [ "`raspi-config nonint get_config_var gpu_mem /boot/config.txt`" -lt "$split" ]; then
    echo "Setting gpu_mem allocation to "$split"MB"
    raspi-config nonint do_memory_split "$split"
fi