Skip to content

Add workaround for a bug in Raspberry Pi 4 VL805 0x000137ab firmware (streaming issues) #623

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
guysoft merged 1 commit into from
Dec 31, 2019
Merged

Add workaround for a bug in Raspberry Pi 4 VL805 0x000137ab firmware (streaming issues) #623

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
31 changes: 31 additions & 0 deletions src/modules/octopi/filesystem/home/root/bin/webcamd
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -115,6 +115,37 @@ function goodbye() {
# runs MJPG Streamer, using the provided input plugin + configuration
function runMjpgStreamer {
input=$1

# There are problems with 0x000137ab firmware on VL805 (Raspberry Pi 4}).
# Try to autodetect offending firmware and temporarily fix the issue
# by changing power management mode
echo "Checking for VL805 (Raspberry Pi 4)..."
if [[ -f /usr/bin/vl805 ]]; then
VL805_VERSION=$(/usr/bin/vl805)
VL805_VERSION=${VL805_VERSION#*: }
echo " - version 0x${VL805_VERSION} detected"
case "$VL805_VERSION" in
00013701)
echo " - nothing to be done. It shouldn't cause USB problems."
;;
000137ab)
echo -e " - \e[31mThis version is known to cause problems with USB cameras.\e[39m"
echo -e " You may want to downgrade to 0x0013701."
echo -e " - [FIXING] Trying the setpci -s 01:00.0 0xD4.B=0x41 hack to mitigate the"
echo -e " issue. It disables ASPM L1 on the VL805. Your board may (or may not) get"
echo -e " slightly hotter. For details see:"
echo -e " https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=244421"
setpci -s 01:00.0 0xD4.B=0x41
;;
*)
echo " - unknown firmware version. Doing nothing."
;;
esac
else
echo " - It seems that you don't have VL805 (Raspberry Pi 4)."
echo " There should be no problems with USB (a.k.a. select() timeout)"
fi

pushd $MJPGSTREAMER_HOME > /dev/null 2>&1
echo Running ./mjpg_streamer -o "output_http.so -w $camera_http_webroot $camera_http_options" -i "$input"
LD_LIBRARY_PATH=. ./mjpg_streamer -o "output_http.so -w $camera_http_webroot $camera_http_options" -i "$input" &
Expand Down