spice-fix

SPICE Resize Auto-Fix (Proxmox VM)

Overview

This sets up a lightweight background watcher that reapplies display sizing when SPICE/virt-viewer window size changes.

Info

Use cat <<'EOF' blocks to write files directly from terminal instead of manual editors.

1) Create Watch Script

Run:

mkdir -p ~/.local/bin
cat <<'EOF' > ~/.local/bin/spice-resize-watch.sh
#!/usr/bin/env bash
set -u
 
OUTPUT="Virtual-1"
LAST=""
 
while sleep 0.7; do
    CUR="$(xrandr | awk '/current/ {print $8"x"$10}')"
    if [ "$CUR" != "$LAST" ]; then
        xrandr --output "$OUTPUT" --auto >/dev/null 2>&1 || xrandr -s 0 >/dev/null 2>&1
        LAST="$(xrandr | awk '/current/ {print $8"x"$10}')"
    fi
done
EOF
chmod +x ~/.local/bin/spice-resize-watch.sh

2) Create Autostart Entry

Run:

mkdir -p ~/.config/autostart
cat <<'EOF' > ~/.config/autostart/spice-resize-watch.desktop
[Desktop Entry]
Type=Application
Name=SPICE Resize Watch
Exec=/home/kevin/.local/bin/spice-resize-watch.sh
X-GNOME-Autostart-enabled=true
NoDisplay=false
Hidden=false
EOF

3) Start Immediately (No Reboot)

~/.local/bin/spice-resize-watch.sh &

Resize the virt-viewer window and verify resolution follows.

4) Persist on Login

Log out, then log back in once. The watcher should auto-start each session.

5) Stop or Disable

Stop current process:

pkill -f spice-resize-watch.sh

Disable autostart permanently:

rm ~/.config/autostart/spice-resize-watch.desktop

6) Optional CPU Tuning

To reduce wakeups, increase poll interval in the script:

From:

while sleep 0.7; do

To:

while sleep 1; do

Tradeoff: lower CPU wakeups, slightly slower resize response.