​​Tutorial 4) EUDAQ2 Troubleshooting

​​Schema of the telescope:

  • ​​Photos of the telescope can be found here : Dropbox link

​​Troubleshooting:

​​Problem 1) STROBE LENGTH

​​
​​Evidence)
​​I was running 
​​./ITS3start.py ITS3-test.ini
​​
​​We got the following error, that prevented from configuring the 6 alpides:
​​(ERROR)[Producer.ALPIDE_plane_0 ]DoConfigure: 'STROBE_LENGTH'
​​(ERROR)[Producer.ALPIDE_plane_1 ]DoConfigure: 'STROBE_LENGTH'
​​…
​​
​​Solution)
​​We had to add a STROBE_LENGTH entry in the ITS3-test.conf
​​
​​[Producer.ALPIDE_plane_0]
​​EUDAQ_DC      = dc
​​EUDAQ_ID      = 0
​​ITHR          = 60
​​VCASN         = 112
​​VCASN2        = 124
​​VCLIP         = 60
​​STROBE_LENGTH = 400
​​DAQ           = DAQ-000909250959071E
​​

​​Problem 2) No matching fbConfigs or visuals found

​​When running the 
​​libGL error: No matching fbConfigs or visuals found
​​libGL error: failed to load driver: swrast
​​{
​​    "DAQ-000909250959071E": null,
​​    "DAQ-00090101054B3009": null,
​​    "DAQ-00090611004E160B": null,
​​    "DAQ-000909250959201E": null,
​​    "DAQ-00090101054B1F08": {
​​        "VCASN": 111,
​​        "VCASN2": 123,
​​        "VCLIP": 60,
​​        "ITHR": 60
​​    },
​​    "DAQ-000904250102133C": null
​​}
​​Traceback (most recent call last):
​​  File "/home/its3mithig/TB_July2023/alpide-daq-software/scripts/./thr_tune.py", line 162, in <module>
​​    if "MEASURE_TUNED" in args.command: measure_tuned_thresholds(args.dirname)
​​  File "/home/its3mithig/TB_July2023/alpide-daq-software/scripts/./thr_tune.py", line 121, in measure_tuned_thresholds
​​    assert None not in tuning.values(), "Threshold tuning bad"