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From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Thomas Renninger <trenn@suse.de>
Cc: Zhang Rui <rui.zhang@intel.com>,
	linux-acpi <linux-acpi@vger.kernel.org>,
	Len Brown <lenb@kernel.org>
Subject: Re: [RFC PATCH 1/5] ACPI video: check the return value of acpi_video_device_lcd_get_level_current
Date: Wed, 11 Mar 2009 13:04:32 +0000	[thread overview]
Message-ID: <20090311130432.GA21313@srcf.ucam.org> (raw)
In-Reply-To: <200903111356.01710.trenn@suse.de>

On Wed, Mar 11, 2009 at 01:56:00PM +0100, Thomas Renninger wrote:

> (BTW, I recently saw a BIOS with _BCQ function. They said they are going to 
> fix it, but it may be more widespread, e.g. this also is often the case 
> (missing _BQC) on Samsung). I found it by luck disassembling and 
> recompiling the DSDT, a runtime warning would be nice (if it does not 
> already exist).

It's not that uncommon - there's a few machines with _BCQ. I actually 
thought we handled it already, but it seems not. Just adding a cap._BCQ 
and using it if there's no _BQC sounds like a safe idea.

-- 
Matthew Garrett | mjg59@srcf.ucam.org

  reply	other threads:[~2009-03-11 13:04 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-03-10  8:03 [RFC PATCH 1/5] ACPI video: check the return value of acpi_video_device_lcd_get_level_current Zhang Rui
2009-03-11 12:56 ` Thomas Renninger
2009-03-11 13:04   ` Matthew Garrett [this message]
2009-03-11 13:15     ` Thomas Renninger
2009-03-12  6:28   ` Zhang Rui

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