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Re: Userdata stays in RAM after Logout and Relogin

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On 2016-11-04 17:46, Radzykewycz, T (Radzy) wrote:
> ________________________________________
>> From: herve [herve@couvelard.com]
>> Sent: Friday, November 04, 2016 9:26 AM
>> To: debian-security@lists.debian.org
>> Subject: Re: Userdata stays in RAM after Logout and Relogin
>>
>> On 04/11/2016 17:01, H. N. wrote:
>>> Hello,
>>>
>>> Sometimes it occurs, that the background Image of my desktop of is
>>> somehow corrupted.
> <snip>
>>> I wonder that the RAM used by the user isn't cleared after logout.
>>>
>>> My System:
>>> Debian 8, Gnome Desktop currently used.
>>> No major system modifications done
>>>
>>> I MIGHT NOT BE IN SECURITY MAILING LIST (I DON'T KNOW, HAD A FEW
>>> PROBLEMS HERE), SO PLEASE SEND RESPONSE-EMAILS DIRECTLY TO
>>> deb_mailinglist@niemeczek.at TOO.
>>>
>> Ram or graphic ram ?
>> could be a bug in the video driver ?
>>
>> hervé
> That's what I assumed when I read it: video driver bug.
> It might also be a hardware issue, where graphic RAM is not
> cleared on reset.  Or given the nature of video devices, perhaps a
> combination of the two: a driver bug that expects certain generic
> behavior combined with a device that expects a custom, proprietary,
> vendor-provided driver to work correctly.
>
> I have no idea whether H.N.'s system uses it, but I guess that
> the USB graphic devices (DisplayLink et.al.) are probably prone
> to this kind of issue, both on the displays that they connect to
> and to the other displays on the primary graphics device.
>
> Enjoy!
>
> -- radzy
>
Thanks for the help.

My setup, just for information:
Nvidia GTX790 (I think) with 4 screens connected.
Two of the screens are connected by Logilink Adapters DP to HDMI.
I am using the driver from Nvidias Website.

Can (and should I) report the problem to Nvidia?

(and recieving Messages from the Mailinglist luckily works)

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Re: Userdata stays in RAM after Logout and Relogin herve <herve@couvelard.com> - 2016-11-04 17:40 +0100
  RE: Userdata stays in RAM after Logout and Relogin "Radzykewycz, T (Radzy)" <radzy@windriver.com> - 2016-11-04 20:30 +0100
    Re: Userdata stays in RAM after Logout and Relogin Felix Knecht <debian@felixknecht.de> - 2016-11-04 23:40 +0100
    Re: Userdata stays in RAM after Logout and Relogin "H. N." <deb_mailinglist@niemeczek.at> - 2016-11-05 01:20 +0100
      Re: Userdata stays in RAM after Logout and Relogin Gunnar Wolf <gwolf@debian.org> - 2016-11-06 01:00 +0100
        Re: Userdata stays in RAM after Logout and Relogin "H. N." <deb_mailinglist@niemeczek.at> - 2016-11-06 10:40 +0100

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