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 (at) 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 37 static void activate_noTV(void) 38 { 39 system("xrandr --auto &> /dev/null"); 40 system("xrandr --output TV --off &> /dev/null"); 41 } 42 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
