I assume that you are playing videos using the windows 11 built in codecs.
I have some old files which you can see the thumbnail and when you play it plays the video but there is no sound
When I play outside in Windows it is fine.
Also at times when I open a video it gets stuck in that full screen mode and I cannot go back to the browser mode with a double click. Sometimes a triple click or five clicks or it keeps bouncing in and out of the two modes and eventually I get back to the browser.
Here's the details for the video file
General
Format : AVI
Format/Info : Audio Video Interleave
Format settings : BitmapInfoHeader / WaveFormatEx
File size : 64.4 MiB
Duration : 5 min 12 s
Overall bit rate : 1 728 kb/s
Frame rate : 29.970 FPS
Writing application : VirtualDubMod 1.5.10.1 (build 2366/release)
Writing library : VirtualDubMod build 2366/release
Video
ID : 0
Format : MPEG-4 Visual
Format settings : BVOP2 / GMC2
Format settings, BVOP : 2
Format settings, QPel : No
Format settings, GMC : 2 warppoints
Format settings, Matrix : Default (H.263)
Codec ID : DX50
Codec ID/Hint : DivX 5
Duration : 5 min 12 s
Bit rate : 1 604 kb/s
Nominal bit rate : 2 896 kb/s
Width : 720 pixels
Height : 480 pixels
Display aspect ratio : 3:2
Frame rate : 29.970 (30000/1001) FPS
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.155
Stream size : 59.7 MiB (93%)
Writing library : DivX 1328m
Audio
ID : 1
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 3
Format settings : Joint stereo
Codec ID : 55
Codec ID/Hint : MP3
Duration : 5 min 12 s
Bit rate mode : Constant
Bit rate : 112 kb/s
Channel(s) : 2 channels
Sampling rate : 32.0 kHz
Compression mode : Lossy
Delay relative to video : 9 ms
Stream size : 4.17 MiB (6%)
Alignment : Split across interleaves
Interleave, duration : 33 ms (1.00 video frame)
Interleave, preload duratio : 500 ms
Playing videos in the viewer
Moderators: helmut, XnTriq, xnview