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Intermittent blank screen – Stretch

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  Intermittent blank screen – Stretch Mike <m99@kaikohe.net> - 2018-06-01 02:10 +0200
    Re: Intermittent blank screen – Stretch Abdullah Ramazanoğlu <ar018@yahoo.com> - 2018-06-01 02:40 +0200
      Re: Intermittent blank screen – Stretch Mike <m99@kaikohe.net> - 2018-06-01 05:30 +0200
    Re: Intermittent blank screen – Stretch "Alexander V. Makartsev" <avbetev@gmail.com> - 2018-06-01 08:00 +0200
    Re: Intermittent blank screen – Stretch Darac Marjal <mailinglist@darac.org.uk> - 2018-06-01 11:50 +0200
    Re: Intermittent blank screen – Stretch floris <jkfloris@dds.nl> - 2018-06-01 22:20 +0200
      Re: Intermittent blank screen – Stretch Mike <m99@kaikohe.net> - 2018-06-02 09:10 +0200
        Re: Intermittent blank screen – Stretch floris <jkfloris@dds.nl> - 2018-06-03 21:20 +0200
      Re: Intermittent blank screen – Stretch Mike <m99@kaikohe.net> - 2018-06-03 14:00 +0200
        Re: Intermittent blank screen – Stretch Gene Heskett <gheskett@shentel.net> - 2018-06-03 15:40 +0200
          Re: Intermittent blank screen – Stretch Jimmy Johnson <field.engineer@gmail.com> - 2018-06-09 10:30 +0200
            Re: Intermittent blank screen – Stretch Gene Heskett <gheskett@shentel.net> - 2018-06-09 13:00 +0200
      Re: Intermittent blank screen – Stretch Jimmy Johnson <field.engineer@gmail.com> - 2018-06-09 10:20 +0200
    Re: Intermittent blank screen – Stretch Jimmy Johnson <field.engineer@gmail.com> - 2018-06-02 01:00 +0200
      Re: Intermittent blank screen – Stretch Mike <m99@kaikohe.net> - 2018-06-02 07:30 +0200

#196308 — Intermittent blank screen – Stretch

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

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#196309

On Fri, 1 Jun 2018 11:27:46 +1200 Mike said:

> Does anyone have any thoughts?

I would have checked /var/log/{messages,syslog,Xorg.0.log}

Regards
-- 
Abdullah Ramazanoğlu

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#196312

> I would have checked /var/log/{messages,syslog,Xorg.0.log}
>

It happened a few minutes ago and there were no entries in those logs.

Thanks

Mike

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#196313

[Multipart message — attachments visible in raw view] — view raw

On 01.06.2018 04:27, Mike wrote:
> 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?
>
What are your actions after blanking happened? You press reset button on
PC? Or Ctrl+Alt+F1 to get console and check the logs?
If you restart OS then you should check logs from previous boot time:
    $ sudo journalctl -b -1
If you still have clean logs and system stays in working state after
blanking happened, I'd check the HDMI cable, re-plug and/or replaced it
with another of better quality.

-- 
With kindest regards, Alexander.

⢀⣴⠾⠻⢶⣦⠀ 
⣾⠁⢠⠒⠀⣿⡁ Debian - The universal operating system
⢿⡄⠘⠷⠚⠋⠀ https://www.debian.org
⠈⠳⣄⠀⠀⠀⠀ 

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#196317

[Multipart message — attachments visible in raw view] — view raw

On Fri, Jun 01, 2018 at 11:27:46AM +1200, Mike wrote:
>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?

Are you able to replace the HDMI cable? Intermittent blanking for a 
couple of seconds sounds to me like an interruption in the stream of 
data going to the display, causing the display to reset.

>
>Thanks
>
>Mike
>
>

-- 
For more information, please reread.

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#196339

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

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#196345

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

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#196375

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

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#196366

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
>
>
Okay, now here is a weird thing.

I just unplugged a USB cable that was, in turn, connected to a 
microcontroller. My screen went blank. When I plugged in back in it went 
blank again. This happened about 4 times until I could plug and unplug 
without the blanking. I left it for 30-odd seconds and was able to do 
the same thing. It did not happen when I unplugged my computer keyboard, 
or my USB camera.

Does this give anyone any ideas?

Thanks.

Mike

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#196367

On Sunday 03 June 2018 07:54:22 Mike wrote:

> 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
>
> Okay, now here is a weird thing.
>
> I just unplugged a USB cable that was, in turn, connected to a
> microcontroller. My screen went blank. When I plugged in back in it
> went blank again. This happened about 4 times until I could plug and
> unplug without the blanking. I left it for 30-odd seconds and was able
> to do the same thing. It did not happen when I unplugged my computer
> keyboard, or my USB camera.
>
> Does this give anyone any ideas?

Yes.  Unplug it again, and install htop, the run it as root so the kill 
button, F9 can kill any thing. Plug the cable to the micro-controller 
back in and see what pops up in the top 10 or so when htop is set to 
watch cpu. My theory is that the micro-controller is spaming your main 
box with lots of traffic.  But its just a theory.

> Thanks.
>
> Mike



-- 
Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>

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#196506

On 06/03/2018 06:29 AM, Gene Heskett wrote:
> On Sunday 03 June 2018 07:54:22 Mike wrote:
> 
>> 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
>>
>> Okay, now here is a weird thing.
>>
>> I just unplugged a USB cable that was, in turn, connected to a
>> microcontroller. My screen went blank. When I plugged in back in it
>> went blank again. This happened about 4 times until I could plug and
>> unplug without the blanking. I left it for 30-odd seconds and was able
>> to do the same thing. It did not happen when I unplugged my computer
>> keyboard, or my USB camera.
>>
>> Does this give anyone any ideas?
> 
> Yes.  Unplug it again, and install htop, the run it as root so the kill
> button, F9 can kill any thing. Plug the cable to the micro-controller
> back in and see what pops up in the top 10 or so when htop is set to
> watch cpu. My theory is that the micro-controller is spaming your main
> box with lots of traffic.  But its just a theory.


Hi Gene, I want to make sure I understand your instructions.  You say 
install htop and run htop as root, when the screen goes black press f9.

Is that correct?

Thanks,
-- 
Jimmy Johnson

Devuan Jessie - TDE Trinity R14.0.4 - AMD A8-7600 - EXT4 at sda2
Registered Linux User #380263

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#196508

On Saturday 09 June 2018 04:27:06 Jimmy Johnson wrote:

> On 06/03/2018 06:29 AM, Gene Heskett wrote:
> > On Sunday 03 June 2018 07:54:22 Mike wrote:
> >> 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
> >>
> >> Okay, now here is a weird thing.
> >>
> >> I just unplugged a USB cable that was, in turn, connected to a
> >> microcontroller. My screen went blank. When I plugged in back in it
> >> went blank again. This happened about 4 times until I could plug
> >> and unplug without the blanking. I left it for 30-odd seconds and
> >> was able to do the same thing. It did not happen when I unplugged
> >> my computer keyboard, or my USB camera.
> >>
> >> Does this give anyone any ideas?
> >
> > Yes.  Unplug it again, and install htop, the run it as root so the
> > kill button, F9 can kill any thing. Plug the cable to the
> > micro-controller back in and see what pops up in the top 10 or so
> > when htop is set to watch cpu. My theory is that the
> > micro-controller is spaming your main box with lots of traffic.  But
> > its just a theory.
>
> Hi Gene, I want to make sure I understand your instructions.  You say
> install htop and run htop as root, when the screen goes black press
> f9.
>
That may not work. First f9 is the kill command, but does require further 
action before it sends the kill, but if the screen is blanked, you won't 
be able to see what the top, now highlighted line is.

So this may not be the approach needed after all.

I am inclined to recommend checking with a different HDMI - vga adapter 
next. On the armhf jessie buikds, there is a file read at startup, and I 
do have an option set to boost the hdmi signal else I had a similar 
problem, but thats on a pi-3b, and likely isn't germane to a wintel box.

I do recall seeing some noise on the lists mentioning the adapters in 
this problems context.


> Is that correct?

Not in this scenario. I do recommend htop be installed though as its a 
great troubleshooting tool IMNSHO. Unlike top, which can't scroll thru 
the list of running processes, htop can, making it many times more 
usefull.
> Thanks,



-- 
Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>

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#196504

On 06/01/2018 01:11 PM, 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

It's a bug and can be reproduced, happens on both Intel and Nvidia.
Does not happen on Wheeze or Jessie without systemd.

Thanks,
-- 
Jimmy Johnson

Devuan Jessie - TDE Trinity R14.0.4 - AMD A8-7600 - EXT4 at sda2
Registered Linux User #380263

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#196341

On 05/31/2018 04:27 PM, Mike wrote:
> 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?


I see the same thing on my smart-tv, while watching movies from my laptop.

If you have a smart-tv then you have a tv with a computer in it and it's 
try to communicate with your computer and your computer is trying to 
communicate with your tv, not a good thing.  Both Wheezy and Jessie with 
no-systemd do not have this behavior.  Maybe the problem can be fixed, 
maybe.

Cheers,
-- 
Jimmy Johnson

Devuan Jessie - KDE 4.14.2 - AMD A8-7600 - EXT4 at sda5
Registered Linux User #380263

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#196344

Yes, it is a smart tv.


On 02/06/18 10:56, Jimmy Johnson wrote:
> On 05/31/2018 04:27 PM, Mike wrote:
>> 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?
>
>
> I see the same thing on my smart-tv, while watching movies from my 
> laptop.
>
> If you have a smart-tv then you have a tv with a computer in it and 
> it's try to communicate with your computer and your computer is trying 
> to communicate with your tv, not a good thing.  Both Wheezy and Jessie 
> with no-systemd do not have this behavior. Maybe the problem can be 
> fixed, maybe.
>
> Cheers,

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