i915kms.ko regression?

[Adrian Chadd]

Hi,

I don't know . Unfortunately the drm2 update landed in between some
backlight changes in upstream ,and it's quite possible that we've hit
some magic point in the linux history where the backlight broke for
various versions of laptops.

It's fine for all the models I own, so unless someone buys me one so I
can tinker with it, you're going to have to wait for the next drm2
update to more recent Linux code.



-adrian


On 21 May 2015 at 20:45, Johannes Jost Meixner <xmj at freebsd.org> wrote:
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> Hi Adrian,
>
> Stefan is seeing the same issue I've started seeing in February.
>
> We're both using ASUS UX32VDs
> (https://wiki.freebsd.org/Laptops/ASUS_UX32VD).
>
> What's the actual fix for it?
> - -J
>
>
>> Hi,
>>
>> How are things ? Still using Zenbook ?
>>
>> Im running out of ideas: it seems I cant update anymore my FreeBSD
>>  11 to latest HEAD release since Xorg refuses to work/start nicely
>>  on this laptop. Something broke down Xorg after drm2 update at the
>>  beginning of Feb 2015.
>>
>> I logged here the entire story:
>> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=198937
>>
>> Any tips very welcome. Are you using FreeBSD current on Zenbook ?
>>
>> Thanks,
>
>
>
> - -------- Forwarded Message --------
> Subject: Re: i915kms.ko regression?
> Date: Thu, 5 Feb 2015 11:29:20 -0800
> From: Adrian Chadd <adrian at freebsd.org>
> To: Michael Reifenberger <mike at reifenberger.com>
> CC: Lutz Bichler <lutz.bichler at gmail.com>, Johannes Meixner
> <xmj at freebsd.org>, current at freebsd.org <current at freebsd.org>
>
> There's a backlight_invert tunable/hint that you can set in
> /boot/loader.conf . Try setting it to 1 and rebooting.
>
>
> - -a
>
>
> On 5 February 2015 at 10:32,  <mike at reifenberger.com> wrote:
>> Am 2015-02-05 09:46, schrieb Lutz Bichler:
>>>
>>> Hi Johannes,
>>>
>>> i am experiencing a similar behavior on an Asus UX31A. The
>>> display is active but brightness seems to be near 0 and
>>> unchangeable.
>>>
>>> Reverting https://svnweb.freebsd.org/changeset/base/277959 made
>>> me get full brightness again. Unfortunately, brightness changing
>>>  does not work.
>>>
>>
>> Me too for my Asus UX32VD Notebook.
>>
>> Greetings --- Michael Reifenberger
>>
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>
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