NASPAChromebookScreenBlankingProblem

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https://github.com/dnschneid/crouton/issues/477

https://code.google.com/p/chromium/issues/detail?id=303986

https://wiki.archlinux.org/index.php/Intel_graphics

https://wiki.archlinux.org/index.php/Kernel_modules#Setting_module_options

We are considering as a fix to change the AccelMethod to "uxa"

localhost ~ # find / -name xorg-intel-sna.conf
/mnt/stateful_partition/crouton/chroots/trusty/etc/crouton/xorg-intel-sna.conf
/run/crouton/mnt/stateful_partition/crouton/chroots/trusty/etc/crouton/xorg-intel-sna.conf

localhost ~ # cat $(find / -name xorg-intel-sna.conf)
# Copyright (c) 2015 The crouton Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

# On Intel platforms with FBC enabled, in order to see anything we need to use
# the SNA driver with the TearFree option.
Section "Device"
   Identifier "Intel Graphics SNA+TearFree"
   Driver     "intel"
   Option     "AccelMethod" "uxa"
   Option     "TearFree"    "true"
EndSection