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Groups > linux.debian.bugs.dist > #1002253

Bug#930527: linux-image-4.19.0-5-amd64: when logging out, not the whole screen is erased, leaving private information

Cross-posted to 2 groups.

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Control: severity -1 important
Control: fixed -1 5.4.19-1
Control: retitle -1 linux-image-4.19.0-5-amd64: nouveau driver sometimes crashes

Hi,

Thanks for the clarification.

On Mon, Mar 30, 2020 at 01:05:20PM +0200, Vincent Lefevre wrote:
> On 2020-03-30 09:06:15 +0200, Ivo De Decker wrote:
> > On Sun, Mar 29, 2020 at 09:43:42PM +0200, Vincent Lefevre wrote:
> > > I don't think so, except the use of the nouveau driver, of course.
> > > But there were no issues for years. I think that problems started
> > > to occur after some kernel upgrade. Now, I haven't had any problem
> > > since December, I think.
> > 
> > Do you think the problem is gone with the kernel you are running now?
> 
> I don't know. I don't use this machine often, except remotely
> (via ssh). But problems with the nouveau driver were common
> (and a crash could occur in the nouveau driver even when using
> the machine remotely only), and I haven't seen any issue recently,
> even the last few times I logged in physically.

It seems the main issue you were seeing was (is?) that the nouveau driver
wasn't always very stable. I suspect this wasn't limited to logout only.

> > What version is that?
> 
> linux-image-5.4.0-4-amd64 5.4.19-1
> 
> ypig:~> uname -a
> Linux ypig 5.4.0-4-amd64 #1 SMP Debian 5.4.19-1 (2020-02-13) x86_64 GNU/Linux

Ok, let's assume the issue is no longer present there.

> > > > Also, I don't think this bug is really 'grave'. Even if private
> > > > information remains on the screen, the user can see that, and
> > > > take action to avoid it.
> > > 
> > > Not if one logs out remotely.
> > 
> > What do you mean by that?
> 
> I sometimes log in physically, but go away without logging out first
> (there are sometimes a good reason, e.g. if some computation program
> hasn't finished yet and I had not started it in "screen"). I can
> later log in via ssh and kill the X session.

Oh. I assumed you were talking about a text console, but it seems you're
talking about a graphical login.

In any case, I don't think this qualifies as a grave bug, so I'm downgrading
it.

Cheers,

Ivo

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Bug#930527: linux-image-4.19.0-5-amd64: when logging out, not the whole screen is erased, leaving private information Vincent Lefevre <vincent@vinc17.net> - 2020-03-29 21:50 +0200
  Bug#930527: linux-image-4.19.0-5-amd64: when logging out, not the whole screen is erased, leaving private information Vincent Lefevre <vincent@vinc17.net> - 2020-03-30 13:10 +0200
    Bug#930527: linux-image-4.19.0-5-amd64: when logging out, not the whole screen is erased, leaving private information Ivo De Decker <ivodd@debian.org> - 2020-03-30 17:00 +0200

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