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Merged
merged 3 commits into from
Oct 26, 2025
Merged

raspinfo: Improve display info output #148

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c007a7d
raspinfo: Improve display info output
popcornmix Oct 23, 2025
589a968
raspinfo: report libcamera-hello output if installed
popcornmix Oct 23, 2025
fc7ec25
raspinfo: Add sudo to dmesg
popcornmix Oct 23, 2025
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172 changes: 101 additions & 71 deletions raspinfo/raspinfo
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Original file line number Diff line number Diff line change
Expand Up @@ -8,88 +8,75 @@


display_info_drm() {
# If running X then can use xrandr, otherwise
# dump the /sys/class entries for the displays
if command -v xrandr > /dev/null &&
DISPLAY=${DISPLAY:-:0} xrandr --listmonitors &>/dev/null;
then
echo "Running (F)KMS and X"
echo

DISPLAY=${DISPLAY:-:0} xrandr --verbose
else
echo "Running (F)KMS, console"
echo

for card in /sys/class/drm/card[0-9]-*;
do
echo $card

# if kmsprint isn't installed print basic mode info
if ! command -v kmsprint > /dev/null; then
if [ -f $card/modes ];
then
cat $card/modes
else
echo "No modes found"
fi
fi

if [ -f $card/edid ];
then
base64 $card/edid
else
echo "No EDID found"
fi
echo
done
fi

# kmsprint is more useful, but not always installed
echo
if command -v kmsprint > /dev/null; then
kmsprint
echo
kmsprint -m
echo
kmsprint -p
else
echo "kmsprint is not installed. Install with: sudo apt install kms++-utils"
fi

echo

# dump the /sys/class entries for the displays
for card in /sys/class/drm/card[0-9]-*;
do
echo $card

if ! command -v kmsprint > /dev/null; then
if [ -f $card/modes ];
then
cat $card/modes
else
echo "No modes found"
fi
echo
fi

if [ -f $card/edid ];
then
base64 $card/edid
else
echo "No EDID found"
fi
echo
done

# dump the /sys/kernel/debug entries for the displays
cardfound=0
for card in `seq 0 9`;
do
if sudo test -f "/sys/kernel/debug/dri/${card}/state";
then
for hdmi in 0 1;
do
if sudo test -f "/sys/kernel/debug/dri/${card}/hdmi${hdmi}_regs";
then
echo "HDMI${hdmi}: $(sudo cat /sys/kernel/debug/dri/$card/hdmi${hdmi}_regs | grep HOTPLUG)"
for hdmi in 0 1;
do
if sudo test -f "/sys/kernel/debug/dri/${card}/hdmi${hdmi}_regs";
then
echo "HDMI${hdmi}: $(sudo cat /sys/kernel/debug/dri/$card/hdmi${hdmi}_regs | grep HOTPLUG)"
fi
done
echo
# dump the state if we don't have kmsprint
if ! command -v kmsprint > /dev/null; then
echo "/sys/kernel/debug/dri/$card/state:"
sudo cat "/sys/kernel/debug/dri/$card/state"
echo
fi
done
echo
echo "/sys/kernel/debug/dri/$card/state:"
sudo cat "/sys/kernel/debug/dri/$card/state"
echo
cardfound=1
cardfound=1
fi
done
if [ "$cardfound" == "0" ];
then
echo "kms state not found"
echo
fi
echo

}

display_info_legacy() {
# Legacy mode
echo "Running Legacy framebuffer"
echo

for card in `seq 0 9`;
do
F="/dev/fb${card}"
Expand All @@ -100,31 +87,64 @@ display_info_legacy() {
fi
done

disps=`tvservice -l | awk '/Display Number/{print substr($3,1,1)}'`
if command -v tvservice > /dev/null; then
disps=`tvservice -l | awk '/Display Number/{print substr($3,1,1)}'`

tmp=$(mktemp)
tmp=$(mktemp)

for display in $disps
do
echo
echo "Display: " $display
for display in $disps
do
echo
echo "Display: " $display

tvservice -v $display -s
tvservice -v $display -n
tvservice -v $display -m CEA
tvservice -v $display -m DMT
tvservice -v $display -s
tvservice -v $display -n
tvservice -v $display -m CEA
tvservice -v $display -m DMT

echo
tvservice -v $display -d $tmp > /dev/null
base64 $tmp
done
echo
tvservice -v $display -d $tmp > /dev/null
base64 $tmp
echo
done

rm $tmp
rm $tmp
else
echo "tvservice not installed"
fi

if pgrep Xorg > /dev/null &&
command -v xrandr > /dev/null &&
DISPLAY=${DISPLAY:-:0} xrandr --listmonitors &>/dev/null; then
DISPLAY=${DISPLAY:-:0} xrandr --verbose
echo
fi
}

display_info() {
# Check if we are running a KMS/DRM system

if [ -f /proc/device-tree/soc/firmwarekms@*/status ] &&
grep -q okay /proc/device-tree/soc/firmwarekms@*/status; then
KMS=fkms
elif [ -f /proc/device-tree/*/v3d@*/status ] &&
grep -q okay /proc/device-tree/*/v3d@*/status; then
KMS=kms
else
KMS=legacy
fi

if pgrep labwc > /dev/null; then
WIN=labwc
elif pgrep wayfire > /dev/null; then
WIN=wayfire
elif pgrep Xorg > /dev/null; then
WIN=Xorg
else
WIN=console
fi
echo "Using $WIN with $KMS"

if [ -d "/dev/dri" ];
then
display_info_drm
Expand Down Expand Up @@ -170,7 +190,17 @@ uname -a
cat /proc/cpuinfo | tail -3

echo "Throttled flag : "`vcgencmd get_throttled`
echo "Camera : "`vcgencmd get_camera`


echo "Camera Information"
echo "------------------"
echo

if command -v libcamera-hello > /dev/null; then
libcamera-hello --list
else
echo "Camera : "`vcgencmd get_camera`
fi

echo
echo "Videocore information"
Expand Down Expand Up @@ -275,7 +305,7 @@ echo "dmesg log"
echo "---------"
echo

dmesg | sed -e "s/\([0-9a-fA-F]\{1,4\}:\)\{7,7\}[0-9a-fA-F]\{1,4\}/y.y.y.y.y.y.y.y/g" | sed -e "s/[0-9a-fA-F]\{1,4\}:\(:[0-9a-fA-F]\{1,4\}\)\{1,4\}/y::y.y.y.y/g" | sed -e "s/\([0-9a-fA-F]\{2,2\}\:\)\{5,5\}[0-9a-fA-F]\{2,2\}/m.m.m.m/g"
sudo dmesg | sed -e "s/\([0-9a-fA-F]\{1,4\}:\)\{7,7\}[0-9a-fA-F]\{1,4\}/y.y.y.y.y.y.y.y/g" | sed -e "s/[0-9a-fA-F]\{1,4\}:\(:[0-9a-fA-F]\{1,4\}\)\{1,4\}/y::y.y.y.y/g" | sed -e "s/\([0-9a-fA-F]\{2,2\}\:\)\{5,5\}[0-9a-fA-F]\{2,2\}/m.m.m.m/g"


if grep -q "^Revision\s*:\s*[ 123][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F]11[0-9a-fA-F]$" /proc/cpuinfo
Expand Down