Update build.func

misc/build.func

@@ -1296,8 +1296,10 @@ such as 'intel-media-driver', 'libva2', or 'vainfo'." 15 74
         IDX=0
         DID_MOUNT_DRI=0
         for dev in $SELECTED_DEVICES; do
-          dev=$(sed 's/"//g' <<<"$dev")
+          dev="${dev%\"}" # remove trailing "
+          dev="${dev#\"}" # remove leading "
           IFS=":" read -ra devices <<<"$dev"
+          for d in "${devices[@]}"; do
 
             for d in "${devices[@]}"; do
               if [[ "$CT_TYPE" == "0" ]]; then
@@ -1318,6 +1320,7 @@ such as 'intel-media-driver', 'libva2', or 'vainfo'." 15 74
               fi
             done
           done
+        done
       else
         msg_warn "No VAAPI devices selected – passthrough skipped."
       fi