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#!/usr/bin/python
#
# this script will exaimne /etc/xorg/xorg.conf and
# transition from broken proprietary drivers to the free ones
#
import sys
import os
import logging
import time
import shutil
# main xorg.conf
XORG_CONF = "/etc/X11/xorg.conf"
def replace_driver_from_xorg(old_driver, new_driver, xorg=XORG_CONF):
"""
this removes old_driver driver from the xorg.conf and subsitutes
it with the new_driver
"""
if not os.path.exists(xorg):
logging.warning("file %s not found" % xorg)
return
content = []
with open(xorg) as xorg_file:
for line in xorg_file:
# remove comments
s = line.split("#")[0].strip()
# check for fglrx driver entry
if (s.lower().startswith("driver") and
s.endswith('"%s"' % old_driver)):
logging.debug("line '%s' found" % line)
line = '\tDriver\t"%s"\n' % new_driver
logging.debug("replacing with '%s'" % line)
content.append(line)
# write out the new version
with open(xorg) as xorg_file:
if xorg_file.readlines() != content:
logging.info("saving new %s (%s -> %s)" % (
xorg, old_driver, new_driver))
with open(xorg + ".xorg_fix", "w") as xorg_fix_file:
xorg_fix_file.write("".join(content))
os.rename(xorg + ".xorg_fix", xorg)
def comment_out_driver_from_xorg(old_driver, xorg=XORG_CONF):
"""
this comments out a driver from xorg.conf
"""
if not os.path.exists(xorg):
logging.warning("file %s not found" % xorg)
return
content = []
with open(xorg) as xorg_file:
for line in xorg_file:
# remove comments
s = line.split("#")[0].strip()
# check for old_driver driver entry
if (s.lower().startswith("driver") and
s.endswith('"%s"' % old_driver)):
logging.debug("line '%s' found" % line)
line = '#%s' % line
logging.debug("replacing with '%s'" % line)
content.append(line)
# write out the new version
with open(xorg) as xorg_file:
if xorg_file.readlines() != content:
logging.info("saveing new %s (commenting %s)" % (xorg, old_driver))
with open(xorg + ".xorg_fix", "w") as xorg_fix_file:
xorg_fix_file.write("".join(content))
os.rename(xorg + ".xorg_fix", xorg)
if __name__ == "__main__":
if not os.getuid() == 0:
print("Need to run as root")
sys.exit(1)
# we pretend to be do-release-upgrade so that apport picks up when we crash
sys.argv[0] = "/usr/bin/do-release-upgrade"
# setup logging
logging.basicConfig(level=logging.DEBUG,
filename="/var/log/dist-upgrade/xorg_fixup.log",
filemode='w')
logging.info("%s running" % sys.argv[0])
if not os.path.exists(XORG_CONF):
logging.info("No xorg.conf, exiting")
sys.exit(0)
# remove empty xorg.conf to help xorg and its auto probing logic
# (LP: #439551)
if os.path.getsize(XORG_CONF) == 0:
logging.info("xorg.conf is zero size, removing")
os.remove(XORG_CONF)
sys.exit(0)
#make a backup of the xorg.conf
backup = XORG_CONF + ".dist-upgrade-" + time.strftime("%Y%m%d%H%M")
logging.debug("creating backup '%s'" % backup)
shutil.copy(XORG_CONF, backup)
if not os.path.exists("/usr/lib/xorg/modules/drivers/fglrx_drv.so"):
with open(XORG_CONF) as xorg_conf_file:
if "fglrx" in xorg_conf_file.read():
logging.info("Removing fglrx from %s" % XORG_CONF)
comment_out_driver_from_xorg("fglrx")
if not os.path.exists("/usr/lib/xorg/modules/drivers/nvidia_drv.so"):
with open(XORG_CONF) as xorg_conf_file:
if "nvidia" in xorg_conf_file.read():
logging.info("Removing nvidia from %s" % XORG_CONF)
comment_out_driver_from_xorg("nvidia")