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Re: Acer TimelineX 1830tz - Cannot change backlight brightness

 

Hi folks!
I am in exact the same situation after updating to the latest Ubuntu release 
10.04.

Before that with 9.04 and 9.10 the mentioned work arounds worked fine.

see: https://help.ubuntu.com/community/AspireTimeline/Fixes

Until now, I did not tried to change the BIOS.
(Can anyone be so kind and point me to an howto?, 
But I am not sure, if it is a good idea to make a change there to fix a ubuntu 
bug)

I have the Aspire 5810T.

Best Regards 

mt.

Am Montag, 28. Juni 2010 21:06 schrieb Gregor Müllegger:
> Hi guys,
>
> I recently purchased a Acer TimelineX 1830tz. WLAN is working (but always
> switched off after boot), Battery charging LED is working, also Compositing
> is working out of the box.
>
> But I have problems to set the backlight brightness. I think its not a
> problem of the FN+Arrow keys - its something driver related (I tried
> xbacklight, tried setting the brightness in /sys/ directory, tried the
> Helperscript posted in the Ubuntu Wiki).
>
> My first attempt fixing it was to set some boot options. But also
> "acpi_backlight=vendor" 
[...]


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Dipl.-Math. Martin Tschierschke   -  Geschäftsführer
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