Pi install - Teh Forum

<body> <div id="header"> <span class="left"> <span class="back"><a href="lthread_list.php?webtag=DEFAULT"><span class="image mobile_back" title="Back"></span></a></span> <span class="image mobile_logo" title="Beehive Forum Logo"></span> </span> <ul> <li> <a class="reply_all" href="lpost.php?webtag=DEFAULT&reply_to=42216.0&return_msg=42216.21"> <span class="image mobile_reply_all"></span><span class="text">Reply to All</span> </a> </li> <li> <a class="navigation" href="#"> <span class="image mobile_navigation"></span><span class="text">Show messages</span> </a> </li> <li> <a class="main" href="#"><span class="image mobile_menu" title="Menu"></span> </a> </li> </ul> </div> <div class="menu main"> <ul> <li><a href="lthread_list.php?webtag=DEFAULT">Messages</a></li> <li><a href="lpm.php?webtag=DEFAULT">Inbox</a></li> <li><a href="lsearch.php?webtag=DEFAULT">Search</a></li> <li><a href="llogon.php?webtag=DEFAULT">Login</a></li> </ul> </div> <div class="menu navigation"><a href="lmessages.php?webtag=DEFAULT&msg=42216.1">1–10</a><a href="lmessages.php?webtag=DEFAULT&msg=42216.11">11–20</a><a href="lmessages.php?webtag=DEFAULT&msg=42216.21">21–30</a><a href="lmessages.php?webtag=DEFAULT&msg=42216.31">31–40</a>…<a href="lmessages.php?webtag=DEFAULT&msg=42216.91">91–92</a></div> <div id="page_content"> <h3 class="thread_title"><a href="index.php?webtag=DEFAULT&amp;msg=42216.21">Pi install</a> </h3> <div id="messages" data-navigation="42216_21_92_10"> <a name="a42216_21"></a><div class="message" id="message_42216_21"> <div class="message_header"> <div class="message_from"> From: CHYRON (DSMITHHFX)<span class="message_time">22 Aug 2018 17:29</span> <div class="clearer"></div> </div><div class="message_to">To: Chris (CHRISSS) <span><span class="image post_read" title="Read: 22 Aug 2018 21:53"></span></span> <span class="message_count">21 of 92</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=42216.21">42216.21</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=42216.20">42216.20</a></div> <div class="message_body"> Here's a preview:<br /><br /><img alt="" src="https://images-na.ssl-images-amazon.com/images/I/51VIf6PSW6L.jpg" style="width:400px;height:500px;" /></div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=42216.21&return_msg=42216.21" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="42216.21"> <span class="rating">+1/1</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a42216_22"></a><div class="message" id="message_42216_22"> <div class="message_header"> <div class="message_from"> From: graphitone<span class="message_time">22 Aug 2018 18:45</span> <div class="clearer"></div> </div><div class="message_to">To: CHYRON (DSMITHHFX) <span><span class="image post_read" title="Read: 22 Aug 2018 20:03"></span></span> <span class="message_count">22 of 92</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=42216.22">42216.22</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=42216.21#a42216_21" target="_self">42216.21</a></div> <div class="message_body"> <span class="emoticon e_fail" title="(fail)"><span class="e__">(fail)</span></span></div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=42216.22&return_msg=42216.21" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="42216.22"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a42216_23"></a><div class="message" id="message_42216_23"> <div class="message_header"> <div class="message_from"> From: graphitone<span class="message_time">22 Aug 2018 19:44</span> <div class="clearer"></div> </div><div class="message_to">To: All <span><span class="image post_unread" title="Unread Message"></span></span> <span class="message_count">23 of 92</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=42216.23">42216.23</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=42216.21#a42216_22" target="_self">42216.22</a></div> <div class="message_body"> Ok, this portion of the script works really well, (thank you PB!)<br /> <div class="quotetext"><strong>Code:</strong> </div> <pre class="code"> GPIO.setup(5, GPIO.IN, pull_up_down = GPIO.PUD_UP) oldButtonState1 = True while True: #grab the current button state buttonState1 = GPIO.input(5) # check to see if button has been pushed if buttonState1 != oldButtonState1 and buttonState1 == False: subprocess.call("echo 1 > /sys/class/backlight/rpi_backlight/bl_power && shutdown -h now", shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE) oldButtonState1 = buttonState1 time.sleep(.1) </pre> On a click of the button it turns off the backlight and shuts the Pi down. I only need that one line as it automatically turns the backlight back on on a power up. However, although it was working initially on a rebuild, the sound's dropped off again. <span class="emoticon e_csad" title=":C"><span class="e__">:C</span></span></div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=42216.23&return_msg=42216.21" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="42216.23"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a42216_24"></a><div class="message" id="message_42216_24"> <div class="message_header"> <div class="message_from"> From: CHYRON (DSMITHHFX)<span class="message_time">22 Aug 2018 20:05</span> <div class="clearer"></div> </div><div class="message_to">To: graphitone <span><span class="image post_read" title="Read: 22 Aug 2018 20:12"></span></span> <span class="message_count">24 of 92</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=42216.24">42216.24</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=42216.21#a42216_22" target="_self">42216.22</a></div> <div class="message_body"> No? How about this:<br /><br /><img alt="" src="http://www.gallagherstory.com/vintage_stereo/images/70s_stereo.jpg" style="width:800px;height:600px;" /></div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=42216.24&return_msg=42216.21" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="42216.24"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a42216_25"></a><div class="message" id="message_42216_25"> <div class="message_header"> <div class="message_from"> From: graphitone<span class="message_time">22 Aug 2018 20:13</span> <div class="clearer"></div> </div><div class="message_to">To: CHYRON (DSMITHHFX) <span><span class="image post_read" title="Read: 23 Aug 2018 00:12"></span></span> <span class="message_count">25 of 92</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=42216.25">42216.25</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=42216.21#a42216_24" target="_self">42216.24</a></div> <div class="message_body"> What you doing taking pictures of Throb's living room?</div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=42216.25&return_msg=42216.21" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="42216.25"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a42216_26"></a><div class="message" id="message_42216_26"> <div class="message_header"> <div class="message_from"> From: Peter (BOUGHTONP)<span class="message_time">22 Aug 2018 21:10</span> <div class="clearer"></div> </div><div class="message_to">To: graphitone <span><span class="image post_read" title="Read: 23 Aug 2018 06:03"></span></span> <span class="message_count">26 of 92</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=42216.26">42216.26</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=42216.12">42216.12</a></div> <div class="message_body"> "Somehow I've lost all sound" <p>My sound broke in Arch by doing something that buggered around with PulseAudio, which then fucked up ALSA, because PulseAudio is a buggy bloated piece of shit that nobody actually needs. </p><p>So maybe you installed/upgraded (possibly automatically) something that did fiddled with PA?</p></div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=42216.26&return_msg=42216.21" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="42216.26"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a42216_27"></a><div class="message" id="message_42216_27"> <div class="message_header"> <div class="message_from"> From: Peter (BOUGHTONP)<span class="message_time">22 Aug 2018 21:45</span> <div class="clearer"></div> </div><div class="message_to">To: graphitone <span><span class="image post_read" title="Read: 23 Aug 2018 06:03"></span></span> <span class="message_count">27 of 92</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=42216.27">42216.27</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=42216.21#a42216_23" target="_self">42216.23</a></div> <div class="message_body"> You're still using the <i>"Are we there yet? Are we there yet? ..."</i> method instead of the <i>"Tell me when we're there"</i> one. <p>If you do really want to do it this way, since you only care about shutdown, you don't need to store/check oldButtonState and can simplify it to: </p><pre class="code">GPIO.setup(5, GPIO.IN, pull_up_down = GPIO.PUD_UP) # endless loop until button is pressed while GPIO.input(5): time.sleep(.1) # verify button state before switching off if not GPIO.input(5): subprocess.call("echo 1 > /sys/class/backlight/rpi_backlight/bl_power && shutdown -h now", shell=True,stdout=subprocess.PIPE, stderr=subprocess.PIPE) </pre> <p>The if verification is probably not necessary (depending on how Python works), but even so it acts as both a safety against unwanted shutdown (incase something goes wrong), and clarifies the intent slightly. (The event-driven/callback method would make it even clearer.)</p></div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=42216.27&return_msg=42216.21" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="42216.27"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a42216_28"></a><div class="message" id="message_42216_28"> <div class="message_header"> <div class="message_from"> From: Chris (CHRISSS)<span class="message_time">22 Aug 2018 21:54</span> <div class="clearer"></div> </div><div class="message_to">To: CHYRON (DSMITHHFX) <span><span class="image post_read" title="Read: 23 Aug 2018 00:12"></span></span> <span class="message_count">28 of 92</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=42216.28">42216.28</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=42216.21#a42216_21" target="_self">42216.21</a></div> <div class="message_body"> <span class="emoticon e_grin" title=":D"><span class="e__">:D</span></span></div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=42216.28&return_msg=42216.21" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="42216.28"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a42216_29"></a><div class="message" id="message_42216_29"> <div class="message_header"> <div class="message_from"> From: CHYRON (DSMITHHFX)<span class="message_time">23 Aug 2018 00:17</span> <div class="clearer"></div> </div><div class="message_to">To: graphitone <span><span class="image post_read" title="Read: 23 Aug 2018 06:03"></span></span> <span class="message_count">29 of 92</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=42216.29">42216.29</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=42216.21#a42216_25" target="_self">42216.25</a></div> <div class="message_body"> Has he really got a 70s stereo system?</div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=42216.29&return_msg=42216.21" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="42216.29"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div><a name="a42216_30"></a><div class="message" id="message_42216_30"> <div class="message_header"> <div class="message_from"> From: graphitone<span class="message_time">23 Aug 2018 08:33</span> <div class="clearer"></div> </div><div class="message_to">To: Peter (BOUGHTONP) <span><span class="image post_read" title="Read: 23 Aug 2018 19:47"></span></span> <span class="message_count">30 of 92</span><div class="clearer"></div> </div> </div> <div class="message_links"> <a href="lmessages.php?webtag=DEFAULT&msg=42216.30">42216.30</a> In reply to <a href="lmessages.php?webtag=DEFAULT&msg=42216.21#a42216_26" target="_self">42216.26</a></div> <div class="message_body"> Could well be.<br /><br /> IQaudIO produce <a href="http://www.iqaudio.com/downloads/IQaudIO.pdf">this document</a> (a pdf download) which seems to be wrriten in multiple styles and changes between being helpful and downright confusing.<br /><br /> I'll check the onboard audio is properly disabled and might go back to a vanilla image, and test the sound after every change made.<br /><br /> </div> <div class="message_footer"> <div class="message_footer_links"><a href="lpost.php?webtag=DEFAULT&reply_to=42216.30&return_msg=42216.21" class="reply"><span class="image post"></span>Reply</a></div> <div class="message_vote_form" data-msg="42216.30"> <span class="rating">0/0</span> <span class="image vote vote_down vote_down_off" title="Vote Down"></span> <span class="image vote vote_up vote_up_off" title="Vote Up"></span> </div> </div> </div></div> <div class="message_page_footer"> <ul> <li class="right_col"><form accept-charset="utf-8" method="get" action="lmessages.php" target="_self"><input type="hidden" name="webtag" id="webtag" class="bhinputtext" value="DEFAULT" dir="ltr" /><input type="hidden" name="msg" id="msg" class="bhinputtext" value="42216.31" dir="ltr" /><input type="submit" name="submit" id="keep_reading" value="Keep reading…" class="button" /></form></li> </ul> </div> </div> </body>