I am here to confirm the same issue. In my case, HOWEVER, minimizing and pausing VLC is all it needs to generate thousands of these so rapidly that I run into issues:
Jan 21 08:27:40 pop-os vlc.desktop[2389]: [00007f4cf4092ce0] vdpau_chroma filter error: video mixer features failure: An invalid handle value was provided. Jan 21 08:27:40 pop-os vlc.desktop[2389]: [00007f4cf4092ce0] vdpau_chroma filter error: video mixer attributes failure: An invalid handle value was provided. I am using NVIDIA 440.44 running Ubuntu 19.10 (in fact Pop!_OS) on a GeForce GTX 1650/PCIe/SSE2. Thanks a lot for looking into this. -- 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-418 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-435 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-418/+bug/1846374/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp