mrcharles
0beb30e896
With the server proven clean at 5160x2160 (band analysis + freerdp on every codec), Jump still painted bars - its EGFX large-frame decode is broken regardless of budget. drdynvc=false blocks EGFX for all clients; clipboard/audio ride separate channels and survive. Classic codec verified clean at 5160 via harness. Script part 3 + xrdp bounced. Details: https://projects.knownelement.com/issues/611
98 lines
4.3 KiB
Bash
Executable File
98 lines
4.3 KiB
Bash
Executable File
#!/bin/bash
|
|
# 12-fix-rdp-bigres.sh — xrdp EGFX big-resolution fix (Redmine #611)
|
|
#
|
|
# Symptom: Jump Desktop from iPad -> big external monitor (5160x2160)
|
|
# showed color bars / cut sides. Root cause candidate: default EGFX
|
|
# compressed-frame budget truncates large frames at this width.
|
|
# freerdp UAT at 5160x2160 (all codecs + mid-session resize) is clean;
|
|
# this mitigation raises the budget for the Jump client path.
|
|
#
|
|
# Idempotent: run as root on ultix-streaming.
|
|
|
|
set -euo pipefail
|
|
|
|
DROPIN=/etc/systemd/system/xrdp.service.d/bigres.conf
|
|
|
|
mkdir -p "$(dirname "$DROPIN")"
|
|
cat > "$DROPIN" <<'EOF'
|
|
[Service]
|
|
Environment=XRDP_GFX_MAX_COMPRESSED_BYTES=33554432
|
|
Environment=XRDP_GFX_FRAMES_IN_FLIGHT=2
|
|
EOF
|
|
|
|
systemctl daemon-reload
|
|
# bounce only when nobody is connected: check for active RDP sessions first
|
|
ACTIVE=$(pgrep -c -f 'Xorg.*xrdp/xorg.conf' || true)
|
|
if [ "${ACTIVE:-0}" -gt 0 ]; then
|
|
echo "Active RDP X sessions: $ACTIVE — NOT restarting; apply at next bounce with:"
|
|
echo " systemctl restart xrdp-sesman xrdp"
|
|
else
|
|
systemctl restart xrdp-sesman xrdp
|
|
sleep 2
|
|
systemctl is-active xrdp xrdp-sesman
|
|
fi
|
|
|
|
grep -q XRDP_GFX_MAX_COMPRESSED_BYTES "$DROPIN" && echo "drop-in present: $DROPIN"
|
|
|
|
###############################################################################
|
|
# Part 2 — kwin_x11 black-screen fix (root-caused 2026-09-01, #611)
|
|
#
|
|
# Symptom: RDP login -> KDE spinner -> BLACK screen. Server-side bisect
|
|
# showed display :10 rendering pure black (colors=1): kwin_x11 was
|
|
# crash-looping (plasma-kwin_x11.service "start operation timed out",
|
|
# restart counter 12+). Cause: software-GL compositing init under
|
|
# xorgxrdp (no DRI) at 5160x2160 never finishes inside the unit's
|
|
# start timeout; systemd kills kwin -> no desktop. The "spinner" the
|
|
# user sees is KSplash firing on every kwin restart.
|
|
#
|
|
# Fix: disable X11 compositing for the RDP accounts (kwin runs
|
|
# uncomposited = instant, no GL) and give the kwin unit start-time
|
|
# headroom. Wayland console session unaffected (Compositing/Enabled is
|
|
# an X11-only key). Verified with the freerdp harness on rdptest:
|
|
# fresh 1408x945 / fresh 5160x2160 / resize up mid-session / resize
|
|
# down on reconnect — all render real desktops.
|
|
###############################################################################
|
|
|
|
for ACCOUNT in reachableceo reachableceo-offstage; do
|
|
runuser -u "$ACCOUNT" -- kwriteconfig6 --file kwinrc \
|
|
--group Compositing --key Enabled false
|
|
echo "kwinrc Compositing=false: $ACCOUNT"
|
|
done
|
|
|
|
mkdir -p /etc/systemd/user/plasma-kwin_x11.service.d
|
|
cat > /etc/systemd/user/plasma-kwin_x11.service.d/bigres-timeout.conf <<'EOF'
|
|
[Service]
|
|
# big-res xorgxrdp sessions: software-GL init is slow; give kwin room
|
|
# instead of kill+crashloop (#611)
|
|
TimeoutStartSec=300
|
|
EOF
|
|
systemctl daemon-reload
|
|
|
|
###############################################################################
|
|
# Part 3 — EGFX off for all clients (drdynvc=false), 2026-09-01 evening
|
|
#
|
|
# Final piece of #611: with the server rendering CLEAN at 5160x2160
|
|
# (verified by band-analysis of live captures + freerdp harness on every
|
|
# codec), Jump Desktop still painted color bars down the side — its
|
|
# decode of xrdp's EGFX large frames is broken regardless of the
|
|
# compressed-frame budget. EGFX rides the drdynvc channel; blocking it
|
|
# server-side makes every client (Jump included) fall back to the
|
|
# classic codecs, which render this monitor fine. Clipboard (cliprdr)
|
|
# and audio (rdpsnd) are separate channels and survive.
|
|
###############################################################################
|
|
|
|
sed -i 's/^drdynvc=true/drdynvc=false/' /etc/xrdp/xrdp.ini
|
|
grep -q '^drdynvc=false' /etc/xrdp/xrdp.ini || { echo "drdynvc line missing; check /etc/xrdp/xrdp.ini" >&2; exit 1; }
|
|
ACTIVE=$(pgrep -c -f 'Xorg.*xrdp/xorg.conf' || true)
|
|
if [ "${ACTIVE:-0}" -gt 0 ]; then
|
|
echo "Active RDP X sessions: $ACTIVE — xrdp listener restart will blip clients;"
|
|
echo "sessions survive (sesman untouched). Apply with: systemctl restart xrdp"
|
|
else
|
|
systemctl restart xrdp
|
|
fi
|
|
echo "EGFX disabled (drdynvc=false) — clients now negotiate classic codecs."
|
|
echo "kwin unit override: /etc/systemd/user/plasma-kwin_x11.service.d/bigres-timeout.conf"
|
|
echo
|
|
echo "If a session is currently black: loginctl terminate-session <id> (or"
|
|
echo "loginctl terminate-user <user> for their RDP sessions) and reconnect."
|