Re: Intermittent blank screen – Stretch

[floris <jkfloris@dds.nl>]

Mike schreef op 2018-06-02 09:08:
> On 02/06/18 08:11, floris wrote:
> > Mike schreef op 2018-06-01 01:27:
> > > I have just installed Stretch and and randomly getting a 2 second (or
> > > so) blank screen. I can go for quite some time without it happening,
> > > or it can happen several times over a few minutes. I can dual boot
> > > with Jessie and do not have the problem with that – so I think I can
> > > rule out a hardware issue.
> > >
> > > I have an Nvidia GTX1050 video card, HDMI output to a Samsung 49" TV,
> > > 4K video. There is no other type of input into the TV for me to be
> > > able to test.
> > >
> > > Here is what I have done
> > > 1. Installed Stretch (amd64) with XFCE
> > > 2. apt-get install firmware-linux nvidia-driver nvidia-settings 
> > > nvidia-xconfig
> > > 3. run nvidia-xconfig
> > > 4. turned off screen blanking in power settings
> > >
> > > I am quite happy to spend time troubleshooting, but don’t really know
> > > where to start. The blanking happens too quickly for me to be able to
> > > do anything at the time.
> > >
> > > Does anyone have any thoughts?
> > >
> > > Thanks
> > >
> > > Mike
> >
> > You can try the NVidia driver module from backports [1] and/or run 
> > journalctl -f in a terminal and wait for the blank screen.
> >
> > [1] https://packages.debian.org/stretch-backports/nvidia-driver
> > ---
> > Floris
> Thanks Floris. Nothing from journalctl -f.
> Can you tell me what installing a backport might do? Is that a later
> version of the driver (I only installed Stretch a couple of days ago)
>
> Mike

In backports there is a newer version of the NVidia module with more bug 
fixes. Maybe this line is relevant:
-  Further improved the fix for occasional flicker when using the X 
driver's composition pipeline. This was mostly fixed in 390.42, but now 
the fix should be more complete.

---
Floris