Ich habe einen Sundtek MediaTV Digital Home III an meiner Dreambox DM800hdsev2 als zweiten DVB-C-Tuner über USB angeschlossen. Leider habe ich immer wieder gestörte Aufnahmen über den Stick. Wenn man dabei das Live-Bild anschaut, sieht man, dass das Bild für Sekunden hängenbleibt, dann gestört wieder einsetzt, bevor es wieder gut weitergeht. In /var/log/messages sieht das so aus:
Jan 1 15:02:09 dm800sev2 user.warn kernel: [ 6981.668000] CEC recv ok!
Jan 1 15:02:55 dm800sev2 user.warn kernel: [ 7028.262000] audio_cdb_itb_error_isr! underflow
Jan 1 15:02:55 dm800sev2 user.warn kernel: [ 7028.286000] audio_cdb_itb_error_isr! underflow
Jan 1 15:02:55 dm800sev2 user.warn kernel: [ 7028.310000] audio_cdb_itb_error_isr! underflow
Jan 1 15:02:55 dm800sev2 user.warn kernel: [ 7028.334000] audio_cdb_itb_error_isr! underflow
Jan 1 15:02:55 dm800sev2 user.warn kernel: [ 7028.358000] audio_cdb_itb_error_isr! underflow
Jan 1 15:02:55 dm800sev2 user.warn kernel: [ 7028.382000] audio_cdb_itb_error_isr! underflow
Jan 1 15:02:55 dm800sev2 user.warn kernel: [ 7028.406000] audio_cdb_itb_error_isr! underflow
Jan 1 15:02:55 dm800sev2 user.warn kernel: [ 7028.430000] audio_cdb_itb_error_isr! underflow
Jan 1 15:02:55 dm800sev2 user.warn kernel: [ 7028.454000] audio_cdb_itb_error_isr! underflow
Jan 1 15:02:55 dm800sev2 user.warn kernel: [ 7028.478000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:00 dm800sev2 user.warn kernel: [ 7033.302000] audio_cdb_itb_error_isr: 200 callbacks suppressed
Jan 1 15:03:00 dm800sev2 user.warn kernel: [ 7033.302000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:00 dm800sev2 user.warn kernel: [ 7033.326000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:00 dm800sev2 user.warn kernel: [ 7033.350000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:00 dm800sev2 user.warn kernel: [ 7033.374000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:00 dm800sev2 user.warn kernel: [ 7033.398000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:00 dm800sev2 user.warn kernel: [ 7033.422000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:00 dm800sev2 user.warn kernel: [ 7033.446000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:00 dm800sev2 user.warn kernel: [ 7033.470000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:00 dm800sev2 user.warn kernel: [ 7033.494000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:00 dm800sev2 user.warn kernel: [ 7033.518000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:05 dm800sev2 user.warn kernel: [ 7038.341000] audio_cdb_itb_error_isr: 200 callbacks suppressed
Jan 1 15:03:05 dm800sev2 user.warn kernel: [ 7038.342000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:05 dm800sev2 user.warn kernel: [ 7038.365000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:05 dm800sev2 user.warn kernel: [ 7038.389000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:05 dm800sev2 user.warn kernel: [ 7038.413000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:05 dm800sev2 user.warn kernel: [ 7038.437000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:05 dm800sev2 user.warn kernel: [ 7038.461000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:05 dm800sev2 user.warn kernel: [ 7038.485000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:05 dm800sev2 user.warn kernel: [ 7038.509000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:05 dm800sev2 user.warn kernel: [ 7038.533000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:05 dm800sev2 user.warn kernel: [ 7038.557000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:10 dm800sev2 user.warn kernel: [ 7043.381000] audio_cdb_itb_error_isr: 200 callbacks suppressed
Jan 1 15:03:10 dm800sev2 user.warn kernel: [ 7043.382000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:10 dm800sev2 user.warn kernel: [ 7043.405000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:10 dm800sev2 user.warn kernel: [ 7043.429000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:10 dm800sev2 user.warn kernel: [ 7043.453000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:10 dm800sev2 user.warn kernel: [ 7043.477000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:10 dm800sev2 user.warn kernel: [ 7043.501000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:10 dm800sev2 user.warn kernel: [ 7043.525000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:10 dm800sev2 user.warn kernel: [ 7043.549000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:10 dm800sev2 user.warn kernel: [ 7043.573000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:10 dm800sev2 user.warn kernel: [ 7043.597000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:15 dm800sev2 user.warn kernel: [ 7048.421000] audio_cdb_itb_error_isr: 200 callbacks suppressed
Jan 1 15:03:15 dm800sev2 user.warn kernel: [ 7048.422000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:15 dm800sev2 user.warn kernel: [ 7048.445000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:15 dm800sev2 user.warn kernel: [ 7048.469000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:15 dm800sev2 user.warn kernel: [ 7048.493000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:15 dm800sev2 user.warn kernel: [ 7048.517000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:15 dm800sev2 user.warn kernel: [ 7048.541000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:15 dm800sev2 user.warn kernel: [ 7048.565000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:15 dm800sev2 user.warn kernel: [ 7048.589000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:15 dm800sev2 user.warn kernel: [ 7048.613000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:15 dm800sev2 user.warn kernel: [ 7048.637000] audio_cdb_itb_error_isr! underflow
Jan 1 15:03:20 dm800sev2 user.warn kernel: [ 7052.918000] ch0: unlock
Jan 1 15:03:20 dm800sev2 user.warn kernel: [ 7052.918000] ch0: lock
Jan 1 15:03:20 dm800sev2 user.warn kernel: [ 7053.551000] pts_error_isr: 150 callbacks suppressed
Jan 1 15:03:20 dm800sev2 user.warn kernel: [ 7053.551000] XVD pts error PTS 0x76de2b08, STC 0x76cd4a4d, type 0
Jan 1 15:03:21 dm800sev2 user.warn kernel: [ 7054.191000] XVD pts error PTS 0x76cd0b0c, STC 0x76de83d7, type 0
Jan 1 15:03:21 dm800sev2 user.warn kernel: [ 7054.211000] XVD pts error PTS 0x76de2e8c, STC 0x76ccf6f7, type 0
Die blau blinkende LED der Box blinkt in diesen Sekunden auch nicht. Es passiert längst nicht bei jeder Aufnahme, aber doch eindeutig zu oft!
![Ärgerlich >:(](http://support.sundtek.com/Smileys/default/angry.gif)
Ich verwende den Treiber vom 29.12.2015 und die aktuelle Newenigma2-Version von Anfang Dezember.
Kann das ein Hardwaredefekt des Stifts sein?
Liebe Grüße
Burkhard