Disable screen blanking and powersave on VT2 for factory

factory.conf

 # Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 description   "Chrome OS factory startup stub"
 author        "chromium-os-dev@chromium.org"
 
 start on stopped udev-addon
 stop on starting halt or starting reboot
 
 script
+  # disable screen blanking & VESA powerdown for VT2
+  echo -e "\033[9;0]" > /dev/console
+  echo -e "\033[14;0]" > /dev/console
+
   modprobe i2c-dev
   cd /usr/local/autotest
   eval $(./site_tests/suite_Factory/startx.sh)
   date >>/var/log/factory.log
   if [ ! -e factory_started ]; then
     touch factory_started
     cp -f site_tests/suite_Factory/control .
     OPT=""
   else
     OPT="-c"
   fi
   FACTORY_LOG_FILE=/var/log/factory.log
   CONSOLE_LOG_FILE=/var/log/factory_console.log
   # Factory log will be uploaded so we must always preserve previous results.
   # Console log is just for UI to display, no need to be saved across sessions;
   # however in order to support writing by multiple processes, the file must be
   # opened in "append" mode. So we must first delete it then use >> to append.
   rm -f "$CONSOLE_LOG_FILE"
   ./bin/autotest -t factory $OPT control 2>&1 |
     tee -a "$FACTORY_LOG_FILE" |
     grep --line-buffer "FACTORY" >>"$CONSOLE_LOG_FILE"
 end script
 
 pre-stop script
   pkill python
   pkill X
 end script