linux-kernel - Re: 4.1-rc7: Xorg broken after resume on thinkpad T40p, radeon 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:	Wed, 17 Jun 2015 16:22:58 +0200
From:	Paul Bolle <pebolle@...cali.nl>
To:	Pavel Machek <pavel@....cz>
Cc:	Christian König <christian.koenig@....com>,
	dri-devel@...ts.freedesktop.org, alexander.deucher@....com,
	rjw@...ysocki.net, lenb@...nel.org,
	kernel list <linux-kernel@...r.kernel.org>,
	linux-acpi@...r.kernel.org, linux-pm@...r.kernel.org
Subject: Re: 4.1-rc7: Xorg broken after resume on thinkpad T40p, radeon
 problem?

On Wed, 2015-06-17 at 16:10 +0200, Pavel Machek wrote: 
> > The above looks very much like the issue that made me write commit
> > 45171002b01b ("radeon: add AGPMode 1 quirk for RV250"). See
> > https://bugzilla.redhat.com/show_bug.cgi?id=531825 for a lot of
> > background.
> > 
> > Does booting with radeon.agpmode=1 survive a suspend and resume cycle?
> 
> Yes, that option helps. Thanks!

Then I suggest you add another quirk for your T40p (after testing
agpmode 2 also). Because this all seems to be caused by a broken BIOS,
and/or broken AGP thingy, and/or broken RV250 (or the interaction of
these things or whatever). Maddening stuff, impossible to debug.

Good luck,


Paul Bolle

--
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/