linux-kernel - Re: [PATCH] ACPI / video: Add HP EliteBook Revolve 810 to the blacklist

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

Message-ID: <20140207102523.GO18029@intel.com>
Date:	Fri, 7 Feb 2014 12:25:23 +0200
From:	Mika Westerberg <mika.westerberg@...ux.intel.com>
To:	Aaron Lu <aaron.lu@...el.com>
Cc:	linux-acpi@...r.kernel.org,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Len Brown <lenb@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ACPI / video: Add HP EliteBook Revolve 810 to the
 blacklist

On Fri, Feb 07, 2014 at 09:29:58AM +0800, Aaron Lu wrote:
> On 02/03/2014 06:59 PM, Mika Westerberg wrote:
> > On HP EliteBook Revolve 810 the ACPI backlight device doesn't work as
> > expected. For example when resuming from system sleep, it seems to lose
> > backlight settings.
> > 
> > Forcing Intel driver fixes the problem so add this machine the ACPI
> > video detect blacklist.
> 
> For reference's purpose, can you please file a bug to kernel bugzilla
> under the ACPI/Power-Video category and attach the acpidump and dmesg
> there? Thanks.

Done, the bug is here:

https://bugzilla.kernel.org/show_bug.cgi?id=70231

I noticed that using only the acpi_video0 for tuning backlight works but if
I use intel_backlight directly, on resume I get values from acpi_video0
instead. I'm not really familiar how this is supposed to work, though so
please let me know if I'm missing something.

Thanks.
--
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/