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  1. Qt
  2. QTBUG-136352

No Audio on 6.9.0 Context has not been initialized

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Details

    • Bug
    • Resolution: Unresolved
    • P2: Important
    • None
    • 6.9.0
    • Multimedia
    • Windows 10.0.19044 Build 19044
      Lenovo Thinkpad E530
    • Windows

    Description

      When I play any video\audio with Qt 6.9.0 I get this all the time: 
      [SWR @ 000001E9E6B1AD80] Context has not been initialized
      is this related to ?
      https://bugreports.qt.io/browse/QTBUG-124131
      this wasn't an issue with Qt6.7.3, but in all 6.8.2, 6.8.3 and 6.9.0 it happens.

      P.S: I am able to fix the issue manually with disabling all sound effects.

        Metadata:
          encoder         : libebml v1.4.5 + libmatroska v1.7.1
          creation_time   : 2024-12-13T08:45:08.000000Z
        Duration: 01:01:42.05, start: 0.000000, bitrate: 2209 kb/s
        Stream #0:0: Video: h264 (High), yuv420p(progressive), 1920x804, SAR 1:1 DAR 160:67, 25 fps, 25 tbr, 1k tbn (default)
            Metadata:
              BPS             : 2000583
              DURATION        : 01:01:42.000000000
              NUMBER_OF_FRAMES: 92550
              NUMBER_OF_BYTES : 925770037
              _STATISTICS_WRITING_APP: mkvmerge v88.0 ('All I Know') 64-bit
              _STATISTICS_WRITING_DATE_UTC: 2024-12-13 08:45:08
              _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
        Stream #0:1(eng): Audio: aac (HE-AAC), 48000 Hz, 5.1, fltp (default)
            Metadata:
              BPS             : 207069
              DURATION        : 01:01:42.016000000
              NUMBER_OF_FRAMES: 86766
              NUMBER_OF_BYTES : 95822025
              _STATISTICS_WRITING_APP: mkvmerge v88.0 ('All I Know') 64-bit
              _STATISTICS_WRITING_DATE_UTC: 2024-12-13 08:45:08
              _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
        Stream #0:2(per): Subtitle: subrip (srt) (default)
            Metadata:
              BPS             : 61
              DURATION        : 01:01:34.283000000
              NUMBER_OF_FRAMES: 521
              NUMBER_OF_BYTES : 28207
              _STATISTICS_WRITING_APP: mkvmerge v88.0 ('All I Know') 64-bit
              _STATISTICS_WRITING_DATE_UTC: 2024-12-13 08:45:08
              _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      [aac @ 000001D1689231C0] env_facs_q 255 is invalid
      [SWR @ 000001D16A113C00] Output channel layout "" is invalid or unsupported.
      [SWR @ 000001D16A113C00] Context has not been initialized
      [SWR @ 000001D16A113C00] Context has not been initialized

      Sound Device System Information:

      Name Conexant 20671 SmartAudio HD
      Manufacturer Conexant
      Status OK
      PNP Device ID HDAUDIO\FUNC_01&VEN_14F1&DEV_506E&SUBSYS_17AA500B&REV_1000\4&204B836&0&0001
      Driver C:\WINDOWS\SYSTEM32\DRIVERS\CHDRT64.SYS (8.54.50.1, 1.26 MB (1,317,096 bytes), 8/5/2015 1:50 PM)
       
      Name High Definition Audio Device
      Manufacturer Microsoft
      Status OK
      PNP Device ID HDAUDIO\FUNC_01&VEN_8086&DEV_2806&SUBSYS_80860101&REV_1000\4&204B836&0&0301
      Driver C:\WINDOWS\SYSTEM32\DRIVERS\HDAUDIO.SYS (10.0.19041.3636, 420.00 KB (430,080 bytes), 3/18/2025 5:06 PM)

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              qtmultimediateam Qt Multimedia Team
              spfl97 Dawn Walker
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                Updated:

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