linux-kernel - Re: Radeon wakeup regression in 3.15-rc6

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]

Date:	Sun, 25 May 2014 08:56:07 -0400
From:	Woody Suwalski <terraluna977@...il.com>
To:	Malte Schröder <maltesch@....de>,
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: Re: Radeon wakeup regression in 3.15-rc6

Malte Schröder wrote:
> Hi,
> I just tried 3.15-rc6. I encountered a pretty nasty problem, which is
> after suspending to RAM the system doesn't wake up properly. v3.14 is fine.
> On wakeup all seems fine, i.e. hd starts to spin an USB-stuff wakes up.
> But all I get from the graphics card is a white screen slowly filling
> with random colored pixels. I had to hard reset the system.
>
> I attached the kernel log, the X-servers log, lspci-output and my kernel
> config.
>
> Regards
> Malte
I have seen a bit of a screen distortion at the bottom of LCD on Radeon 
after a wakeup.
I tried to re-run with drm.debug=0x0e, however once I did it - the 
problem has disappeared, and I have not been able to duplicate it again. 
So just watching for now.
OTOH I have seen (only one time) a black screen after wakeup on Nvidia. 
So maybe some timing is now exposed in PM / DRM...

Woody


--
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/