I’ve started getting this after a recent update, and it has happened twice now. The screenshot shows you that there were 3 days July 3-5 that didn’t record, and it turns out that the Shield was unable to tune to the channel. Because it was the holiday weekend and most of the shows are in rerun that I only record new for, I didn’t realize it sooner.
The solution - I unplug the shield and unplug the cable with the WinTV-dualHD.
From Plex Tuner Service.log:
Jul 06, 2021 22:31:24.526 [8272] INFO - Plex Tuner Service v1.0.0.0 - NVIDIA SHIELD Android TV foster - build:
Jul 06, 2021 22:31:24.527 [8272] INFO - Android version: 9, language: en-US
Jul 06, 2021 22:31:24.527 [8272] INFO - Processor Unknown architecture
Jul 06, 2021 22:31:24.527 [8272] INFO - /data/user/0/com.plexapp.mediaserver.smb/Resources/Plex Tuner Service /data/user/0/com.plexapp.mediaserver.smb/Resources/Tuner/Private /data/user/0/com.plexapp.mediaserver.smb/Resources/Tuner/Shared 1.23.3.4707-ebb5fe9f3 32600
Jul 06, 2021 22:31:24.501 [8282] INFO - [I] v4l::DeviceGetList_impl. Successfully opened frontend /dev/dvb0.frontend0
Jul 06, 2021 22:31:24.503 [8282] INFO - [I] v4l::DeviceGetList_impl. Successfully opened frontend /dev/dvb1.frontend0
Jul 06, 2021 22:31:24.510 [8282] INFO - [I] dvb_device_factory_t::get_device_list. Id dvb#v4l#0#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:0, Name 955D, Standards 24
Jul 06, 2021 22:31:24.510 [8282] INFO - [I] dvb_device_factory_t::get_device_list. Id dvb#v4l#0#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:1, Name 955D, Standards 24
Jul 06, 2021 22:31:24.516 [8282] INFO - [I] device_manager_t::get_device_list. Device 955D, id dvb#v4l#0#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:0, tuners 1, state 2, standards 24
Jul 06, 2021 22:31:24.521 [8282] INFO - [I] device_manager_t::get_device_list. Device 955D, id dvb#v4l#0#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:1, tuners 1, state 2, standards 24
Jul 06, 2021 22:31:24.704 [9026] DEBUG - [I] DTV_STAT_SIGNAL_STRENGTH: 1, -64000, 18446744073709487616, 1
Jul 06, 2021 22:31:24.704 [9026] DEBUG - [I] DTV_STAT_CNR has failed for tuner 0, frontend 0
Jul 06, 2021 22:31:24.706 [9026] DEBUG - [I] quality: 225
Jul 06, 2021 22:31:24.858 [17785] DEBUG - [I] DTV_STAT_SIGNAL_STRENGTH: 1, -64000, 18446744073709487616, 1
Jul 06, 2021 22:31:24.859 [17785] DEBUG - [I] DTV_STAT_CNR has failed for tuner 1, frontend 0
Jul 06, 2021 22:31:24.861 [17785] DEBUG - [I] quality: 223
Jul 06, 2021 22:31:27.866 [8280] INFO - [I] web_service_t::process_device_status
Jul 06, 2021 22:31:27.866 [8280] INFO - [I] device_reactor_t::get_device_list (dvb#v4l#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:0013984767)
Jul 06, 2021 22:31:27.866 [8280] INFO - [I] v4l::DeviceGetList_impl. getting v4l device list
Jul 06, 2021 22:31:27.866 [8280] INFO - [I] v4l::DeviceGetList_impl. Successfully opened frontend /dev/dvb0.frontend0
Jul 06, 2021 22:31:27.868 [8280] INFO - [I] v4l::DeviceGetList_impl. Successfully opened frontend /dev/dvb1.frontend0
Jul 06, 2021 22:31:27.873 [8280] INFO - [I] dvb_device_factory_t::get_device_list. Id dvb#v4l#0#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:0, Name 955D, Standards 24
Jul 06, 2021 22:31:27.873 [8280] INFO - [I] dvb_device_factory_t::get_device_list. Id dvb#v4l#0#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:1, Name 955D, Standards 24
Jul 06, 2021 22:31:27.883 [8280] INFO - [I] device_manager_t::get_device_list. Device 955D, id dvb#v4l#0#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:0, tuners 1, state 2, standards 24
Jul 06, 2021 22:31:27.893 [8280] INFO - [I] device_manager_t::get_device_list. Device 955D, id dvb#v4l#0#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:1, tuners 1, state 2, standards 24
Jul 06, 2021 22:31:28.030 [9026] DEBUG - [I] DTV_STAT_SIGNAL_STRENGTH: 1, -64000, 18446744073709487616, 1
Jul 06, 2021 22:31:28.030 [9026] DEBUG - [I] DTV_STAT_CNR has failed for tuner 0, frontend 0
Jul 06, 2021 22:31:28.032 [9026] DEBUG - [I] quality: 227
Jul 06, 2021 22:31:28.207 [17785] DEBUG - [I] DTV_STAT_SIGNAL_STRENGTH: 1, -63000, 18446744073709488616, 1
Jul 06, 2021 22:31:28.208 [17785] DEBUG - [I] DTV_STAT_CNR has failed for tuner 1, frontend 0
Jul 06, 2021 22:31:28.210 [17785] DEBUG - [I] quality: 230
Jul 06, 2021 22:31:31.216 [8281] INFO - [I] web_service_t::process_device_status
Jul 06, 2021 22:31:31.216 [8281] INFO - [I] device_reactor_t::get_device_list (dvb#v4l#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:0013984767)
Jul 06, 2021 22:31:31.216 [8281] INFO - [I] v4l::DeviceGetList_impl. getting v4l device list
Jul 06, 2021 22:31:31.216 [8281] INFO - [I] v4l::DeviceGetList_impl. Successfully opened frontend /dev/dvb0.frontend0
Jul 06, 2021 22:31:31.221 [8281] INFO - [I] v4l::DeviceGetList_impl. Successfully opened frontend /dev/dvb1.frontend0
Jul 06, 2021 22:31:31.230 [8281] INFO - [I] dvb_device_factory_t::get_device_list. Id dvb#v4l#0#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:0, Name 955D, Standards 24
Jul 06, 2021 22:31:31.231 [8281] INFO - [I] dvb_device_factory_t::get_device_list. Id dvb#v4l#0#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:1, Name 955D, Standards 24
Jul 06, 2021 22:31:31.233 [8281] INFO - [I] device_manager_t::get_device_list. Device 955D, id dvb#v4l#0#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:0, tuners 1, state 2, standards 24
Jul 06, 2021 22:31:31.241 [8281] INFO - [I] device_manager_t::get_device_list. Device 955D, id dvb#v4l#0#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:1, tuners 1, state 2, standards 24
Jul 06, 2021 22:31:31.379 [9026] DEBUG - [I] DTV_STAT_SIGNAL_STRENGTH: 1, -64000, 18446744073709487616, 1
Jul 06, 2021 22:31:31.379 [9026] DEBUG - [I] DTV_STAT_CNR has failed for tuner 0, frontend 0
Jul 06, 2021 22:31:31.381 [9026] DEBUG - [I] quality: 227
Jul 06, 2021 22:31:31.549 [17785] DEBUG - [I] DTV_STAT_SIGNAL_STRENGTH: 1, -64000, 18446744073709487616, 1
Jul 06, 2021 22:31:31.550 [17785] DEBUG - [I] DTV_STAT_CNR has failed for tuner 1, frontend 0
Jul 06, 2021 22:31:31.555 [17785] DEBUG - [I] quality: 230
Jul 06, 2021 22:31:34.560 [8282] INFO - [I] web_service_t::process_device_status
Jul 06, 2021 22:31:34.560 [8282] INFO - [I] device_reactor_t::get_device_list (dvb#v4l#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:0013984767)
Jul 06, 2021 22:31:34.560 [8282] INFO - [I] v4l::DeviceGetList_impl. getting v4l device list
Jul 06, 2021 22:31:34.561 [8282] INFO - [I] v4l::DeviceGetList_impl. Successfully opened frontend /dev/dvb0.frontend0
Jul 06, 2021 22:31:34.562 [8282] INFO - [I] v4l::DeviceGetList_impl. Successfully opened frontend /dev/dvb1.frontend0
Jul 06, 2021 22:31:34.569 [8282] INFO - [I] dvb_device_factory_t::get_device_list. Id dvb#v4l#0#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:0, Name 955D, Standards 24
Jul 06, 2021 22:31:34.569 [8282] INFO - [I] dvb_device_factory_t::get_device_list. Id dvb#v4l#0#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:1, Name 955D, Standards 24
Jul 06, 2021 22:31:34.580 [8282] INFO - [I] device_manager_t::get_device_list. Device 955D, id dvb#v4l#0#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:0, tuners 1, state 2, standards 24
Jul 06, 2021 22:31:34.580 [8282] INFO - [I] device_manager_t::get_device_list. Device 955D, id dvb#v4l#0#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:1, tuners 1, state 2, standards 24
Jul 06, 2021 22:31:34.723 [9026] DEBUG - [I] DTV_STAT_SIGNAL_STRENGTH: 1, -64000, 18446744073709487616, 1
Jul 06, 2021 22:31:34.723 [9026] DEBUG - [I] DTV_STAT_CNR has failed for tuner 0, frontend 0
Jul 06, 2021 22:31:34.726 [9026] DEBUG - [I] quality: 227
Jul 06, 2021 22:31:34.911 [17785] DEBUG - [I] DTV_STAT_SIGNAL_STRENGTH: 1, -64000, 18446744073709487616, 1
Jul 06, 2021 22:31:34.911 [17785] DEBUG - [I] DTV_STAT_CNR has failed for tuner 1, frontend 0
Jul 06, 2021 22:31:34.913 [17785] DEBUG - [I] quality: 227
Jul 06, 2021 22:31:37.919 [8278] INFO - [I] web_service_t::process_device_status
Jul 06, 2021 22:31:37.919 [8278] INFO - [I] device_reactor_t::get_device_list (dvb#v4l#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:0013984767)
Jul 06, 2021 22:31:37.919 [8278] INFO - [I] v4l::DeviceGetList_impl. getting v4l device list
Jul 06, 2021 22:31:37.919 [8278] INFO - [I] v4l::DeviceGetList_impl. Successfully opened frontend /dev/dvb0.frontend0
Jul 06, 2021 22:31:37.921 [8278] INFO - [I] v4l::DeviceGetList_impl. Successfully opened frontend /dev/dvb1.frontend0
Jul 06, 2021 22:31:37.932 [8278] INFO - [I] dvb_device_factory_t::get_device_list. Id dvb#v4l#0#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:0, Name 955D, Standards 24
Jul 06, 2021 22:31:37.933 [8278] INFO - [I] dvb_device_factory_t::get_device_list. Id dvb#v4l#0#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:1, Name 955D, Standards 24
Jul 06, 2021 22:31:37.937 [8278] INFO - [I] device_manager_t::get_device_list. Device 955D, id dvb#v4l#0#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:0, tuners 1, state 2, standards 24
Jul 06, 2021 22:31:37.941 [8278] INFO - [I] device_manager_t::get_device_list. Device 955D, id dvb#v4l#0#/sys/devices/70090000.xusb/usb1/1-2/1-2.2/1-2.2:1.0:1, tuners 1, state 2, standards 24
Jul 06, 2021 22:31:38.085 [9026] DEBUG - [I] DTV_STAT_SIGNAL_STRENGTH: 1, -64000, 18446744073709487616, 1
Jul 06, 2021 22:31:38.085 [9026] DEBUG - [I] DTV_STAT_CNR has failed for tuner 0, frontend 0
Jul 06, 2021 22:31:38.087 [9026] DEBUG - [I] quality: 227
Jul 06, 2021 22:31:38.228 [17785] DEBUG - [I] DTV_STAT_SIGNAL_STRENGTH: 1, -64000, 18446744073709487616, 1
Jul 06, 2021 22:31:38.228 [17785] DEBUG - [I] DTV_STAT_CNR has failed for tuner 1, frontend 0
Jul 06, 2021 22:31:38.230 [17785] DEBUG - [I] quality: 227