linux-kernel - Re: acer_wmi: "Unable to detect available WMID devices" on Acer_Travelmate_5735Z-452G32Mnss (was: Re: i915/kms/backlight-combo mode problem)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Sun, 1 May 2011 09:44:41 +0200
From:	Melchior FRANZ <melchior.franz@...il.com>
To:	"Joey Lee" <jlee@...ell.com>
Cc:	carlos@...angeworlds.co.uk, tiwai@...e.de,
	linux-kernel@...r.kernel.org
Subject: Re: acer_wmi: "Unable to detect available WMID devices" on Acer_Travelmate_5735Z-452G32Mnss (was: Re: i915/kms/backlight-combo mode problem)

* Joey Lee -- Sunday 01 May 2011:
> I am tracing DSDT for why the WMID2 method return acpi fail, and maybe
> this machine direct support standard ACPI backlight method.

Excellent!  :-)



> Does this machine's backlight control works before 2.6.39 kernel? I mean
> does backlight control works fine on 2.6.38 or 37 or even older kernel ?

Yes, it worked before, but also only with acpi_osi=Linux. I'm not
sure about the versions, but I think it already worked with whatever
opensuse 11.3 and 11.4 came with (some 2.6.34.* and 2.6.37.*). This
notebook came with "Linpus" Linux pre-installed, and everything
worked with that. Unfortunately, the notebook specific code was
apparently put in a binary blob module. Disgusting.

m.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/