Hi everyone!

Just deleted 2 syslogs which sized 83GB altogether. The problem still
persists. Another things which I saw, after clearing the syslogs. The
recursive loop does not only appear when we go to suspend mode with
paused vlc or when switching users. For me, it created a bit more than
400 lines of code by just opening a movie with VLC and then pausing it
to check what's happening in syslog. I think that's a big problem
already, since I bought an ssd a year ago and the health already dropped
to 98% from 100%. I don't leave my partition full all the time if anyone
would wonder and I don't write / read a lot to it. So I can only imagine
that these big chunks of reading/writing of codes did damage to the
ssd's health.

I'm not going to risk it, I am changing vlc to something else. I will
begin the hunt now.

P.s: Rubo's workaround didn't work for me.

Have a good day!

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-418 in Ubuntu.
https://bugs.launchpad.net/bugs/1846374

Title:
  Having a video playing/paused when switched to another user generates
  gigabytes of error logs

Status in nvidia-graphics-drivers-340 package in Ubuntu:
  Confirmed
Status in nvidia-graphics-drivers-418 package in Ubuntu:
  Confirmed
Status in nvidia-graphics-drivers-435 package in Ubuntu:
  Confirmed
Status in nvidia-graphics-drivers-440 package in Ubuntu:
  Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
  Confirmed

Bug description:
  To replicate:

  1. Start a video playing, for example in vlc. 'avcodec decoder: Using
  NVIDIA VDPAU Driver Shared Library  418.56  Fri Mar 15 12:31:51 CDT
  2019 for hardware decoding'

  2. Optionally pause it.

  3. Switch to another user.

  The original user's ~/.xsession-errors will rapidly fill up with
  errors along the lines of "vdpau_chroma filter error".

  At the same time, errors are put in /var/log/syslog as well:

  [00007f9d604810a0] vdpau_chroma filter error: video mixer features failure: 
An invalid handle value was provided.
  [00007f9d604810a0] vdpau_chroma filter error: video mixer attributes failure: 
An invalid handle value was provided.
  [00007f9d604810a0] vdpau_chroma filter error: video mixer rendering failure: 
An invalid handle value was provided.
  (repeat ad nauseum)

  At least one of the two will rapidly fill up its partition and
  problems will arise.

  With AMD video hardware and driver, the video continues playing - you
  can hear the sound despite being in the other user.

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