linux-kernel - Re: [PATCH V2 2/2] apple_gmux: Add support for newer hardware

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 for Android: free password hash cracker in your pocket

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

Message-ID: <20120814151543.GD18992@thinkpad-t410>
Date:	Tue, 14 Aug 2012 10:15:43 -0500
From:	Seth Forshee <seth.forshee@...onical.com>
To:	Bernhard Froemel <froemel@...rs.tuwien.ac.at>
Cc:	Matthew Garrett <mjg@...hat.com>, linux-kernel@...r.kernel.org,
	platform-driver-x86@...r.kernel.org
Subject: Re: [PATCH V2 2/2] apple_gmux: Add support for newer hardware

On Tue, Aug 14, 2012 at 04:53:47PM +0200, Bernhard Froemel wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Only in relation to Seth's future apple-gmux patch series about
> vgaswitcheroo and restoring the gmux device configuration across
> suspend/resume [1]:
> On resume the gmux registers 0x28 (DDC) and 0x10 (SWITCH_DISPLAY)
> (i.e., the first two writes) are not restored (result: the screen
> remains black after suspend/resume).
> 
> Of course, this does not happen with my patch proposal ;)
> Unfortunately, I have not the time to sort this out in the next couple
> of days -- on the other hand this is probably not a problem w.r.t.
> this patch, but needs to be taken care of in Seth's patch series.

The patch adding support for switcheroo *does* restore those registers
on resume. Are you saying that isn't happening when you use it?

Seth

--
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/