[ltp] brightness acting up thinkpad t61

Sin Tzu linux-thinkpad@linux-thinkpad.org
Mon, 24 Dec 2007 08:10:56 +0200


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ok i upgraded my bios (adding a delightful logo to my boot lol)
i messed around with xbacklight a bit, seems to work fine, soon i'll
re-compile my kernel with the new thinkpad acpi...

also, when i loaded the video module, and tried echoing values into the
/proc/ brightness files it created, nothing happened (VID nor VID1)...
could it be because i'm still running thinkpad-acpi v0.16?

 anyway, i spent quite some time searching through the mailing list archive,
and i didn't find any way to tie my brightness keys to the acpi video
module... you have the settings lying around perhaps?

On 12/21/07, Henrique de Moraes Holschuh <hmh@hmh.eng.br> wrote:
>
> On Fri, 21 Dec 2007, Sin Tzu wrote:
> > i'm running debian unstable with thinkpad acpi version 0.15 and
> sometimes
> > the brightness randomly changes while not doing anything
> > how can i fix that?
>
> 1. Update to the latest BIOS for your thinkpad if you have not done it yet
> 2. Use thinkpad-acpi latest from ibm-acpi.sf.net, in its default mode
> (don't
> mess with brightness_enable).
>
> Then, hunt down in the ML archives how to configure X.org and ACPI video
> to
> properly deal with brightness changes in your thinkpad using xbacklight :(
>
> > a. i run a 64 bit kernel, will the i386 module from the project website
> work
> > ?
>
> Yes, it should work.  I have to use i386 because they don't have a proper
> arch for "i386 and amd64", in sourceforge.net... and I don't think it is
> right to call it "platform-independent".
>
> > b. i run kernel 2.6.23 with debian patchlevel 1, will i be able to
> install
> > the patches even though they are released for kernel version up to
> > patchlevel 9, the only patch available for the 2.6.23 kernel at the
> website?
>
> It will work. Actually, Debian 2.6.23-1 is based on 2.6.23.9, see
>
> http://packages.debian.org/changelogs/pool/main/l/linux-2.6/current/changelog
>
> --
> "One disk to rule them all, One disk to find them. One disk to bring
> them all and in the darkness grind them. In the Land of Redmond
> where the shadows lie." -- The Silicon Valley Tarot
> Henrique Holschuh
>

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<div>ok i upgraded my bios (adding a delightful logo to my boot lol)</div>
<div>i messed around with xbacklight a bit, seems to work fine, soon i&#39;ll re-compile my kernel with the new thinkpad acpi...</div>
<div>&nbsp;</div>
<div>also, when i loaded the video module, and tried echoing values into the /proc/ brightness files it created, nothing happened (VID nor VID1)...</div>
<div>could it be because i&#39;m still running thinkpad-acpi v0.16?</div>
<div>&nbsp;</div>
<div>
<div>anyway, i spent quite some time searching through the mailing list archive, and i didn&#39;t find any way to&nbsp;tie my&nbsp;brightness keys to the acpi&nbsp;video module... you have the settings lying around perhaps?<br>&nbsp;</div></div>

<div><span class="gmail_quote">On 12/21/07, <b class="gmail_sendername">Henrique de Moraes Holschuh</b> &lt;<a href="mailto:hmh@hmh.eng.br">hmh@hmh.eng.br</a>&gt; wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">On Fri, 21 Dec 2007, Sin Tzu wrote:<br>&gt; i&#39;m running debian unstable with thinkpad acpi version 0.15
 and sometimes<br>&gt; the brightness randomly changes while not doing anything<br>&gt; how can i fix that?<br><br>1. Update to the latest BIOS for your thinkpad if you have not done it yet<br>2. Use thinkpad-acpi latest from 
<a href="http://ibm-acpi.sf.net">ibm-acpi.sf.net</a>, in its default mode (don&#39;t<br>mess with brightness_enable).<br><br>Then, hunt down in the ML archives how to configure <a href="http://X.org">X.org</a> and ACPI video to
<br>properly deal with brightness changes in your thinkpad using xbacklight :(<br><br>&gt; a. i run a 64 bit kernel, will the i386 module from the project website work<br>&gt; ?<br><br>Yes, it should work.&nbsp;&nbsp;I have to use i386 because they don&#39;t have a proper
<br>arch for &quot;i386 and amd64&quot;, in sourceforge.net... and I don&#39;t think it is<br>right to call it &quot;platform-independent&quot;.<br><br>&gt; b. i run kernel 2.6.23 with debian patchlevel 1, will i be able to install
<br>&gt; the patches even though they are released for kernel version up to<br>&gt; patchlevel 9, the only patch available for the 2.6.23 kernel at the website?<br><br>It will work. Actually, Debian 2.6.23-1 is based on <a href="http://2.6.23.9">
2.6.23.9</a>, see<br><a href="http://packages.debian.org/changelogs/pool/main/l/linux-2.6/current/changelog">http://packages.debian.org/changelogs/pool/main/l/linux-2.6/current/changelog</a><br><br>--<br>&quot;One disk to rule them all, One disk to find them. One disk to bring
<br>them all and in the darkness grind them. In the Land of Redmond<br>where the shadows lie.&quot; -- The Silicon Valley Tarot<br>Henrique Holschuh<br></blockquote></div><br>

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