[ltp] brightness acting up thinkpad t61
Sin Tzu
linux-thinkpad@linux-thinkpad.org
Tue, 25 Dec 2007 10:40:06 +0200
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how to i disable brightness handling with the thinkpad acpi module?
On 12/24/07, Henrique de Moraes Holschuh <hmh@hmh.eng.br> wrote:
>
> On Mon, 24 Dec 2007, Sin Tzu wrote:
> > 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...
>
> Ok. Keep your BIOS up-to-date.
>
> > 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?
>
> No, that interface is unrelated to thinkpad-acpi. However, it could be
> that
> the video driver in your kernel is a bit old, and buggy.
>
> > 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?
>
> You shouldn't need to do anything, it handles it automatically on an
> up-to-date BIOS and kernel... IF it works.
>
> If it doesn't, you can use acpid scripts to call xbacklight (but do not
> load
> the video mode in that case!).
>
> --
> "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>how to i disable brightness handling with the thinkpad acpi module?</div>
<div><br> </div>
<div><span class="gmail_quote">On 12/24/07, <b class="gmail_sendername">Henrique de Moraes Holschuh</b> <<a href="mailto:hmh@hmh.eng.br">hmh@hmh.eng.br</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">On Mon, 24 Dec 2007, Sin Tzu wrote:<br>> ok i upgraded my bios (adding a delightful logo to my boot lol)
<br>> i messed around with xbacklight a bit, seems to work fine, soon i'll<br>> re-compile my kernel with the new thinkpad acpi...<br><br>Ok. Keep your BIOS up-to-date.<br><br>> also, when i loaded the video module, and tried echoing values into the
<br>> /proc/ brightness files it created, nothing happened (VID nor VID1)...<br>> could it be because i'm still running thinkpad-acpi v0.16?<br><br>No, that interface is unrelated to thinkpad-acpi. However, it could be that
<br>the video driver in your kernel is a bit old, and buggy.<br><br>> anyway, i spent quite some time searching through the mailing list archive,<br>> and i didn't find any way to tie my brightness keys to the acpi video
<br>> module... you have the settings lying around perhaps?<br><br>You shouldn't need to do anything, it handles it automatically on an<br>up-to-date BIOS and kernel... IF it works.<br><br>If it doesn't, you can use acpid scripts to call xbacklight (but do not load
<br>the video mode in that case!).<br><br>--<br>"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." -- The Silicon Valley Tarot
<br>Henrique Holschuh<br></blockquote></div><br>
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