linux-kernel - udldrm does not recover from powersave? Re: udldrmfb: causes WARN in i915 on X60 (x86-32)

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:   Thu, 25 Feb 2021 10:53:22 +0100
From:   Pavel Machek <pavel@....cz>
To:     Thomas Zimmermann <tzimmermann@...e.de>
Cc:     kernel list <linux-kernel@...r.kernel.org>,
        jani.nikula@...ux.intel.com, joonas.lahtinen@...ux.intel.com,
        rodrigo.vivi@...el.com, intel-gfx@...ts.freedesktop.org,
        airlied@...hat.com, sean@...rly.run,
        dri-devel@...ts.freedesktop.org
Subject: udldrm does not recover from powersave? Re: udldrmfb: causes WARN in
 i915 on X60 (x86-32)

Hi!

> >This is in -next, but I get same behaviour on 5.11; and no, udl does
> 
> Thanks for reporting. We are in the process of fixing the issue. The latest
> patch is at [1].
>

Thank you, that fixes the DMA issue, and I can use the udl.

...for a while. Then screensaver blanks laptop screen, udl screen
blanks too. Upon hitting a key, internal screen shows up, udl does
not.

I try rerunning xrandr ... --auto, but could not recover it.

Any ideas?

Best regards,
								Pavel
-- 
http://www.livejournal.com/~pavelmachek

Download attachment "signature.asc" of type "application/pgp-signature" (182 bytes)