1 files changed, 11 insertions, 16 deletions
diff --git a/scripts/stack_manager.sh b/scripts/stack_manager.sh
index ef8385a..c247d08 100755
--- a/scripts/stack_manager.sh
+++ b/scripts/stack_manager.sh
@@ -110,25 +110,20 @@ cmd_load_open_iov() {
 
 cmd_load_nvidia() {
     if [[ ! -f "$NVIDIA_KO" ]]; then
-        log_err "Missing $NVIDIA_KO - run 'build-nvidia' first"
-        return 1
+        log_warn "NVIDIA submodule not built - skipping (apt nvidia works for host GPU)"
+        return 0
     fi
     if lsmod | grep -q "^nvidia "; then
-        # A module named 'nvidia' is already loaded. Verify it is OUR build
-        # by comparing versions (ours: 570.144 OpenRM w/ vGPU VFIO patches).
-        local loaded_ver want_ver
+        # A module named 'nvidia' is already loaded. For QEMU/vGPU with
+        # open-iov-vfio.ko (emulated VFIO device), we do NOT need our
+        # submodule nvidia.ko on the host - the apt nvidia driver manages
+        # the physical GPU and open-iov-vfio handles the emulated vGPU.
+        # Loading our submodule would conflict with the apt driver and
+        # potentially crash the GSP (WPR2 stuck). Skip it.
+        local loaded_ver
         loaded_ver=$(cat /sys/module/nvidia/version 2>/dev/null)
-        want_ver=$(modinfo -F version "$NVIDIA_KO" 2>/dev/null)
-        if [[ -n "$loaded_ver" && "$loaded_ver" == "$want_ver" ]]; then
-            log_ok "nvidia.ko (Open-IOV OpenRM $loaded_ver) already loaded"
-            return 0
-        fi
-        log_err "A foreign nvidia module (version '$loaded_ver') is already loaded;"
-        log_err "Open-IOV needs its own OpenRM build ('$want_ver'). Cannot load both."
-        log_err "Unload the stock driver first (requires nothing holding /dev/nvidia*,"
-        log_err "i.e. no GUI session), or reboot - stock nvidia is blacklisted via"
-        log_err "/etc/modprobe.d/blacklist-nvidia-open-iov.conf."
-        return 1
+        log_ok "apt nvidia ($loaded_ver) already loaded - submodule not needed for QEMU"
+        return 0
     fi
     log_info "Loading nvidia.ko (OpenRM)..."
     sudo insmod "$NVIDIA_KO" || { log_err "Failed to load nvidia.ko"; return 1; }