From: Felipe Contreras <felipe.contreras@gmail.com>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
Len Brown <lenb@kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [REGRESSION/PATCH] acpi: blacklist win8 OSI for ASUS Zenbok Prime UX31A
Date: Mon, 29 Jul 2013 15:22:56 -0500 [thread overview]
Message-ID: <CAMP44s1=VfRLPVxwuu1Qhim-nyCHe1gKzQDfiffWw3DDpK0Apg@mail.gmail.com> (raw)
In-Reply-To: <7981076.SojlpLkL71@vostro.rjw.lan>
On Mon, Jul 29, 2013 at 3:17 PM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
> On Monday, July 29, 2013 02:20:58 PM Felipe Contreras wrote:
>> Since v3.7 the acpi backlight driver doesn't work at all on this machine
>> because presumably the ACPI code contains stub code when Windows 8 OSI is
>> reported.
>>
>> The commit ea45ea7 (in v3.11-rc2) tried to fix this problem by using the intel
>> backlight driver, however, on this machine it turns the backlight completely
>> off when it reaches level 0%, after which the user might have a lot trouble
>> trying to bring it back.
>>
>> This patch fixes both regressions by blacklisting the win8 OSI, so we are back
>> to v3.6 behavior, and it should remain that way until the intel backlight
>> driver is fixed.
>
> Well, it really is a workaround, so perhaps it would be fair to call it this
> way?
Maybe, but to me, and to most users, the important thing is that it
fixes a regression.
>> Since v3.7, users have been forced to fix the initial regression by modifying
>> the boot arguments [1].
>>
>> [1] https://wiki.archlinux.org/index.php/ASUS_Zenbook_Prime_UX31A
>>
>> Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
>
> I don't really feel this is the right approach, but then I don't care enough
> to fight with you. :-)
It's not the right approach, I don't think I (or anybody) argued
otherwise, but unless the Intel driver is fixed before 3.11, it's the
only sane approach.
--
Felipe Contreras
next prev parent reply other threads:[~2013-07-29 20:22 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-29 19:20 [REGRESSION/PATCH] acpi: blacklist win8 OSI for ASUS Zenbok Prime UX31A Felipe Contreras
2013-07-29 20:17 ` Rafael J. Wysocki
2013-07-29 20:22 ` Felipe Contreras [this message]
2013-07-29 20:47 ` Rafael J. Wysocki
2013-07-29 21:04 ` Felipe Contreras
2013-07-30 3:11 ` Aaron Lu
2013-07-30 3:44 ` Felipe Contreras
2013-07-30 5:51 ` Aaron Lu
2013-07-30 5:57 ` Aaron Lu
2013-07-30 13:42 ` Rafael J. Wysocki
2013-07-30 20:59 ` Felipe Contreras
2013-07-30 23:13 ` Rafael J. Wysocki
2013-07-31 0:11 ` Felipe Contreras
2013-07-31 1:36 ` Aaron Lu
2013-07-31 2:07 ` Felipe Contreras
2013-07-31 2:22 ` Aaron Lu
2013-08-01 18:50 ` Felipe Contreras
2013-07-31 5:14 ` Matthew Garrett
2013-07-31 11:32 ` Felipe Contreras
2013-07-31 14:00 ` Matthew Garrett
2013-07-31 17:46 ` Felipe Contreras
2013-07-31 17:52 ` Matthew Garrett
2013-07-31 18:07 ` Felipe Contreras
2013-07-31 18:47 ` Matthew Garrett
2013-08-01 17:37 ` Felipe Contreras
2013-08-01 17:42 ` Matthew Garrett
2013-08-01 17:50 ` Felipe Contreras
2013-08-01 18:01 ` Matthew Garrett
2013-08-01 18:11 ` Felipe Contreras
2013-08-01 23:40 ` Felipe Contreras
2013-07-31 1:59 ` Aaron Lu
2013-07-31 2:09 ` Felipe Contreras
-- strict thread matches above, loose matches on Subject: below --
2013-10-20 22:16 Vincent Blut
2013-10-21 1:53 ` Aaron Lu
2013-10-21 21:21 ` Vincent Blut
2013-10-22 2:16 ` Aaron Lu
2013-10-22 2:12 ` Felipe Contreras
2013-10-23 15:31 ` Matthew Garrett
2013-10-23 19:39 ` Felipe Contreras
2013-10-24 0:53 ` Matthew Garrett
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