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	<title>Linux tips, tricks, notes and scrawls</title>
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	<description>Yet another Linux blog</description>
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		<title>Linux tips, tricks, notes and scrawls</title>
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		<title>Hard blocked wireless kill-switch on Dell laptop</title>
		<link>http://linuxtrap.wordpress.com/2009/11/25/hard-blocked-wireless-kill-switch-on-dell-laptop/</link>
		<comments>http://linuxtrap.wordpress.com/2009/11/25/hard-blocked-wireless-kill-switch-on-dell-laptop/#comments</comments>
		<pubDate>Wed, 25 Nov 2009 20:11:15 +0000</pubDate>
		<dc:creator>linuxtrap</dc:creator>
				<category><![CDATA[1]]></category>

		<guid isPermaLink="false">http://linuxtrap.wordpress.com/?p=12</guid>
		<description><![CDATA[A few minutes ago my new Dell Latitude E6500 running Ubuntu karmic 9.10 hangs on resume. It pretty frequent but this time the hardware radio kill-switch is set On (=wireless disabled).
I reboot and the dumb dell_laptop linux kernel module thinks the kill-swith is set Off so when I toggle the hardware switch the kernel module [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=linuxtrap.wordpress.com&blog=2674844&post=12&subd=linuxtrap&ref=&feed=1" />]]></description>
			<content:encoded><![CDATA[<div class='snap_preview'><br /><p>A few minutes ago my new Dell Latitude E6500 running Ubuntu karmic 9.10 hangs on resume. It pretty frequent but this time the hardware radio kill-switch is set On (=wireless disabled).<br />
I reboot and the dumb <em>dell_laptop</em> linux kernel module thinks the kill-swith is set Off so when I toggle the hardware switch the kernel module works reversed.</p>
<p>It&#8217;s the output of network-manager debug when the hw kill-switch is set Off  (=wireless should be enabled):</p>
<blockquote><p>NetworkManager: &lt;info&gt;  Wireless now disabled by radio killswitch</p></blockquote>
<p>And this is the output of rfkill list:</p>
<blockquote><p># rfkill list<br />
2: phy0: Wireless LAN<br />
Soft blocked: no<br />
Hard blocked: no<br />
5: dell-wifi: Wireless LAN<br />
Soft blocked: no<br />
<span style="color:#ff0000;">Hard blocked: yes</span><br />
6: dell-bluetooth: Bluetooth<br />
Soft blocked: no<br />
Hard blocked: yes</p></blockquote>
<p>Rebooting doesn&#8217;t help!</p>
<p>I resolve removing dell_laptop kernel module</p>
<blockquote><p># rmmod dell_laptop</p></blockquote>
<p>then I toggle the hw kill-switch and finally</p>
<blockquote><p># modprobe dell_laptop</p></blockquote>
<p>Great, now works like a charm!</p>
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		<title>Converti i video per iPod con Linux</title>
		<link>http://linuxtrap.wordpress.com/2008/01/31/converti-i-video-per-ipod-con-linux/</link>
		<comments>http://linuxtrap.wordpress.com/2008/01/31/converti-i-video-per-ipod-con-linux/#comments</comments>
		<pubDate>Wed, 30 Jan 2008 23:04:46 +0000</pubDate>
		<dc:creator>linuxtrap</dc:creator>
				<category><![CDATA[Hardware]]></category>
		<category><![CDATA[scripts]]></category>
		<category><![CDATA[H264]]></category>
		<category><![CDATA[iPod]]></category>
		<category><![CDATA[video]]></category>

		<guid isPermaLink="false">http://linuxtrap.wordpress.com/?p=7</guid>
		<description><![CDATA[
L&#8217;iPod è compatibile con il formato MPEG-4 ma solo con una precisa codifica per audio e video.
Per esempio paradossalmente l&#8217;iPod non gestisce video con audio MP3 ma solo AAC!
Per convertire con ottima qualità (anche 2-pass)
i vostri video vi consiglio lo script di Mark Pilgrim che gestisce:

H.264/AAC
cropping a 4/3 se la sorgente è widescreen
resizing
DVD o file [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=linuxtrap.wordpress.com&blog=2674844&post=7&subd=linuxtrap&ref=&feed=1" />]]></description>
			<content:encoded><![CDATA[<div class='snap_preview'><br /><div style="text-align:center;"><img src="http://linuxtrap.files.wordpress.com/2008/01/ipod_classic.png" alt="ipod_classic.png" /></div>
<p>L&#8217;iPod è compatibile con il formato MPEG-4 ma solo con una precisa codifica per audio e video.<br />
Per esempio paradossalmente l&#8217;iPod non gestisce video con audio MP3 ma solo AAC!</p>
<p>Per convertire con ottima qualità (anche 2-pass)</p>
<p>i vostri video vi consiglio lo script di <a href="http://diveintomark.org/archives/2007/06/07/howto-batch-encode-video-for-ipod-under-linux-2007-edition" target="_blank">Mark Pilgrim</a> che gestisce:</p>
<ul>
<li>H.264/AAC</li>
<li>cropping a 4/3 se la sorgente è widescreen</li>
<li>resizing</li>
<li>DVD o file video</li>
</ul>
<p>Se poi volete tutti i video di una cartella io di solito uso un semplice script bash:</p>
<blockquote><p>$ for i in *.avi; do podencoder $i; done</p></blockquote>
<p>Oppure per chi ama la shell <a href="http://www.mail-archive.com/transcode-users@exit1.org/msg00597.html" target="_blank">un&#8217;altra soluzione con MP4Box</a>&#8230;</p>
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		<item>
		<title>Truecrypt 4.2a on 2.6.24</title>
		<link>http://linuxtrap.wordpress.com/2008/01/30/truecrypt-42a-on-2624/</link>
		<comments>http://linuxtrap.wordpress.com/2008/01/30/truecrypt-42a-on-2624/#comments</comments>
		<pubDate>Wed, 30 Jan 2008 22:46:16 +0000</pubDate>
		<dc:creator>linuxtrap</dc:creator>
				<category><![CDATA[Moduli]]></category>
		<category><![CDATA[truecrypt]]></category>

		<guid isPermaLink="false">http://linuxtrap.wordpress.com/?p=6</guid>
		<description><![CDATA[Anche con la release 2.6.24 è necessaria una patch per compilare il modulo del kernel.
La patch cumulativa per 2.6.23 e 2.6.24 la potete scaricare qui altrimenti separatamente dal cvs gentoo.
In attesa della prossima release pianificata a giorni&#8230;
       <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=linuxtrap.wordpress.com&blog=2674844&post=6&subd=linuxtrap&ref=&feed=1" />]]></description>
			<content:encoded><![CDATA[<div class='snap_preview'><br /><p>Anche con la release 2.6.24 è necessaria una patch per compilare il modulo del kernel.</p>
<p>La patch cumulativa per 2.6.23 e 2.6.24 la potete scaricare <a href="http://ubuntuforums.org/attachment.php?attachmentid=54669&amp;d=1199018370" target="_blank">qui</a> altrimenti separatamente dal <a href="http://sources.gentoo.org/viewcvs.py/gentoo-x86/app-crypt/truecrypt/files/" target="_blank">cvs gentoo</a>.</p>
<p>In attesa della prossima release pianificata a giorni&#8230;</p>
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		<title>HD SATA2 su controller SATA</title>
		<link>http://linuxtrap.wordpress.com/2008/01/30/hd-sata2-su-controller-sata/</link>
		<comments>http://linuxtrap.wordpress.com/2008/01/30/hd-sata2-su-controller-sata/#comments</comments>
		<pubDate>Wed, 30 Jan 2008 22:26:18 +0000</pubDate>
		<dc:creator>linuxtrap</dc:creator>
				<category><![CDATA[Hardware]]></category>
		<category><![CDATA[SATA]]></category>

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		<description><![CDATA[Utile se avete problemi con controller vecchi.
In dettaglio sui Western Digital basta ponticellare i pin 5-6 (OPT1) come da guida.

       <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=linuxtrap.wordpress.com&blog=2674844&post=4&subd=linuxtrap&ref=&feed=1" />]]></description>
			<content:encoded><![CDATA[<div class='snap_preview'><br /><p>Utile se avete problemi con controller vecchi.</p>
<p>In dettaglio sui Western Digital basta ponticellare i pin 5-6 (OPT1) come da <a href="http://www.wdc.com/en/library/eide/2579-001037.pdf" target="_blank">guida</a>.</p>
<p><img src="http://linuxtrap.files.wordpress.com/2008/01/sata.png" alt="sata.png" /></p>
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		<title>Abilitare i canali wifi 12 e 13</title>
		<link>http://linuxtrap.wordpress.com/2008/01/30/abilitare-i-canali-wifi-12-e-13/</link>
		<comments>http://linuxtrap.wordpress.com/2008/01/30/abilitare-i-canali-wifi-12-e-13/#comments</comments>
		<pubDate>Wed, 30 Jan 2008 22:01:39 +0000</pubDate>
		<dc:creator>linuxtrap</dc:creator>
				<category><![CDATA[Hardware]]></category>
		<category><![CDATA[Moduli]]></category>
		<category><![CDATA[mac80211]]></category>

		<guid isPermaLink="false">http://linuxtrap.wordpress.com/?p=3</guid>
		<description><![CDATA[In Italia sono abilitati secondo normativa i canali fino all&#8217;11(2462MHz)
Per abilitarli fino al 13 (2472MHz) se usate lo stack di rete mac80211 va specificata l&#8217;opzione &#8220;ieee80211_regdom=64&#8243; con
# modprobe mac80211 ieee80211_regdom=64
Altrimenti affinché avvenga direttamente all&#8217;avvio aggiungete la riga seguente a /etc/modprobe.d/options:
options mac80211 ieee80211_regdom=64
Per verificare se usate lo stack mac80211 guardate se è caricato il modulo con [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=linuxtrap.wordpress.com&blog=2674844&post=3&subd=linuxtrap&ref=&feed=1" />]]></description>
			<content:encoded><![CDATA[<div class='snap_preview'><br /><p>In Italia sono abilitati secondo normativa i <a href="http://en.wikipedia.org/wiki/List_of_WLAN_channels" target="_blank">canali fino all&#8217;11(2462MHz)</a><br />
Per abilitarli fino al 13 (2472MHz) se usate lo stack di rete mac80211 va specificata l&#8217;opzione &#8220;ieee80211_regdom=64&#8243; con</p>
<blockquote><p># modprobe mac80211 ieee80211_regdom=64</p></blockquote>
<p>Altrimenti affinché avvenga direttamente all&#8217;avvio aggiungete la riga seguente a /etc/modprobe.d/options:</p>
<blockquote><p>options mac80211 ieee80211_regdom=64</p></blockquote>
<p>Per verificare se usate lo stack mac80211 guardate se è caricato il modulo con # lsmod | grep mac80211.</p>
<p>Per controllare i canali abilitati: # iwlist freq.</p>
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