1 /*
2 * Copyright 2007, Intel Corporation
3 *
4 * This file is part of PowerTOP
5 *
6 * This program file is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; version 2 of the License.
9 *
10 * This program is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program in a file named COPYING; if not, write to the
17 * Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301 USA
20 *
21 * Authors:
22 * Arjan van de Ven <arjan@linux.intel.com>
23 */
24
25 #include <unistd.h>
26 #include <stdio.h>
27 #include <stdlib.h>
28 #include <string.h>
29 #include <stdint.h>
30 #include <sys/types.h>
31 #include <dirent.h>
32
33 #include "powertop.h"
34
35 int has_no_xrandr;
36
activate_noTV(void)37 static void activate_noTV(void)
38 {
39 system("xrandr --auto &> /dev/null");
40 system("xrandr --output TV --off &> /dev/null");
41 }
42
suggest_xrandr_TV_off(void)43 void suggest_xrandr_TV_off(void)
44 {
45 FILE *file;
46 int has_tv = 0;
47 int has_tv_active = 0;
48 char line[1024];
49
50 if (has_no_xrandr)
51 return;
52
53 memset(line, 0, 1024);
54 file = popen("xrandr 2> /dev/null", "r");
55 if (!file || feof(file)) {
56 has_no_xrandr = 1;
57 return;
58 }
59 while (!feof(file)) {
60 if (fgets(line, 1024, file)==NULL)
61 break;
62 if (line[0]!=' ') {
63 if (line[0]=='T' && line[1]=='V' && line[2]==' ')
64 has_tv = 1;
65 else
66 has_tv = 0;
67 } else {
68 if (strchr(line,'*') && has_tv)
69 has_tv_active = 1;
70 }
71
72 }
73 pclose(file);
74 if (has_tv_active)
75 add_suggestion(_("Suggestion: disable TV out via: \n"
76 " xrandr --output TV --off \n"
77 "or press the V key."),
78 35, 'V', _(" V - Disable TV out "), activate_noTV);
79 /* check this only once if no suggestion needed */
80 else
81 has_no_xrandr = 1;
82 }
83