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#!/usr/bin/python2
# -*- coding: utf-8 -*-
__author__ = "James Meyer"
__date__ = "August 23rd 2012"
from subprocess import Popen, PIPE
import re
class available_display_res():
def __init__(self):
self.mode_list=[]
self.videocard = self.find_video_card()
if self.videocard == "nvidia":
self.parse_modeline_nvidia()
else:
self.sizes_xrandr()
#elif self.videocard == "intel":
#self.sizes_xrandr()
#elif self.videocard == "vmware":
#self.sizes_xrandr()
#elif self.videocard == "vesa":
#self.sizes_parse_log()
def getlist(self):
return self.mode_list
def getvc(self):
return self.videocard
def find_video_card(self):
videocard=""
conf_file="/etc/X11/xorg.conf.d/20-automv.conf"
lines=[]
try:
f=open(conf_file,'r')
lines=f.readlines()
f.close()
except:
print " find_video_card: couldn't read in %s" %conf_file
videocard = "unknown"
for line in lines:
parsed=line.split()
if parsed[0].strip() == "Driver":
videocard = parsed[1].strip('''"''')
break
return videocard
def parse_modeline_nvidia(self):
self.mode_list=[]
conf_file="/var/log/Xorg.0.log"
lines=[]
try:
f=open(conf_file,'r')
lines=f.readlines()
f.close()
except:
print " parse_modeline_nvidia: couldn't read in %s" %conf_file
self.mode_list=["Auto"]
#now parse the list looking for modelines
search="Modes in ModePool"
searchindex=[]
for line in lines:
if line.find(search) > 4 :
searchindex.append(lines.index(line))
search="End of ModePool"
if len(searchindex) == 2:
break
#extract the modelines
#[ 29.858] (II) NVIDIA(GPU-0): "nvidia-auto-select" : 2560 x 1600 @ 59.9 Hz (from: EDID)
try:
modelines = lines[searchindex[0]+1:searchindex[1]-1]
for i in modelines:
self.mode_list.append(i.split('''"''')[1])
except:
self.mode_list=["nvidia-auto-select"]
def sizes_parse_log(self):
self.mode_list=["parse_log_list"]
def sizes_xrandr(self):
"""List all sizes detected by xrandr,
ordered by the next resolution to cycle to"""
size_re = re.compile("^ ([0-9]*x[0-9]*)\W*[0-9]*\.[0-9]*(\*)?")
p1 = Popen(['xrandr'], stdout=PIPE)
sizes = []
current_size_index = 0
for line in p1.communicate()[0].split("\n"):
m = size_re.match(line)
if m:
sizes.append(m.group(1))
if m.group(2) == "*":
current_size_index = len(sizes) - 1
#return sizes[current_size_index+1:] + sizes[:current_size_index+1]
self.mode_list = sizes[current_size_index+1:] + sizes[:current_size_index+1]
def go():
mode = available_display_res()
vc = mode.getvc()
modelist = mode.getlist()
print vc
for i in modelist:
print i
conf_file="/tmp/modelines"
try:
f=open(conf_file,'w')
for i in modelist:
f.write(i)
f.write("\n")
f.close()
except:
print " print_xorg_res: couldn't write modelines to %s" %conf_file
if __name__ == '__main__':
go()
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