This is what I get when starting VLC for termial using Debian kernel 6.1.0 (not freezing when switching channels):
******************************** [00007f37640049e0] glconv_vaapi_x11 gl error: vaInitialize: unknown libva error libva info: VA-API version 1.18.0 libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/nvidia_drv_video.so libva info: va_openDriver() returns -1 [00007f37640049e0] glconv_vaapi_drm gl error: vaInitialize: unknown libva error libva info: VA-API version 1.18.0 libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/nvidia_drv_video.so libva info: va_openDriver() returns -1 [00007f37640049e0] glconv_vaapi_drm gl error: vaInitialize: unknown libva error [00007f37640049e0] gl gl: Initialized libplacebo v4.208.0 (API v208) [00007f377c01cfc0] avcodec decoder: Using NVIDIA VDPAU Driver Shared Library 470.182.03 Fri Feb 24 03:16:35 UTC 2023 for hardware decoding [hevc @ 0x7f3778005e40] Failed setup for format vdpau: hwaccel initialisation returned error. [00007f377c01cfc0] avcodec decoder error: existing hardware acceleration cannot be reused [00007f37640049e0] gl gl: Initialized libplacebo v4.208.0 (API v208) [00007f37640049e0] gl gl: Initialized libplacebo v4.208.0 (API v208) [00007f377c343230] main decoder error: buffer deadlock prevented [00007f377c343ac0] mpeg4audio packetizer: AAC channels: 2 samplerate: 48000 [hevc @ 0x7f3778005e40] Could not find ref with POC 3592 [hevc @ 0x7f3778005e40] Could not find ref with POC 3596 [hevc @ 0x7f3778005e40] Could not find ref with POC 3600 [hevc @ 0x7f3778005e40] Could not find ref with POC 3604 [hevc @ 0x7f3778005e40] Could not find ref with POC 3608 [hevc @ 0x7f3778005e40] Could not find ref with POC 3612 [hevc @ ... ********************************************* This is what I get when starting VLC for termial using Debian kernel 6.3.0 (freezing): ****************************************** VLC media player 3.0.18 Vetinari (revision 3.0.13-8-g41878ff4f2) [00005647f9d56440] main playlist: playlist is empty [00007f6c9c343e80] mpeg4audio packetizer: AAC channels: 2 samplerate: 48000 [00007f6c9c01cc20] main decoder error: buffer deadlock prevented [00007f6c9c3435f0] main decoder error: buffer deadlock prevented [00007f6c8c004860] gl gl: Initialized libplacebo v4.208.0 (API v208) libva info: VA-API version 1.18.0 libva error: vaGetDriverNameByIndex() failed with unknown libva error, driver_na me = (null) [00007f6c8c004860] glconv_vaapi_x11 gl error: vaInitialize: unknown libva error libva info: VA-API version 1.18.0 libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/nvidia_drv_video.so libva info: va_openDriver() returns -1 [00007f6c8c004860] glconv_vaapi_drm gl error: vaInitialize: unknown libva error libva info: VA-API version 1.18.0 libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/nvidia_drv_video.so libva info: va_openDriver() returns -1 [00007f6c8c004860] glconv_vaapi_drm gl error: vaInitialize: unknown libva error [00007f6c8c004860] gl gl: Initialized libplacebo v4.208.0 (API v208) [00007f6c9c01cc20] avcodec decoder: Using NVIDIA VDPAU Driver Shared Library 470.182.03 Fri Feb 24 03:16:35 UTC 2023 for hardware decoding [hevc @ 0x7f6c98004940] Failed setup for format vdpau: hwaccel initialisation returned error. [00007f6c9c01cc20] avcodec decoder error: existing hardware acceleration cannot be reused [00007f6c8c004860] gl gl: Initialized libplacebo v4.208.0 (API v208) [00007f6c8c004860] gl gl: Initialized libplacebo v4.208.0 (API v208) [hevc @ 0x7f6c98004940] Could not find ref with POC -3956 [hevc @ 0x7f6c98004940] Could not find ref with POC -3952 [hevc @ 0x7f6c98004940] Could not find ref with POC -3948 [hevc @ 0x7f6c98004940] Could not find ref with POC -3944 [hevc @ 0x7f6c98004940] Could not find ref with POC -3940 [hevc @ 0x7f6c98004940] Could not find ref with POC -3936 [hevc @ 0x7f6c98004940] Could not find ref with POC -3932 [hevc @ 0x7f6c98004940] Could not find ref with POC -3928 [hevc @ 0x7f6c98004940] Could not find ref with POC -3372 [hevc @ 0x7f6c98004940] Could not find ref with POC -3368 [hevc @ 0x7f6c98004940] Could not find ref with POC -3364 [hevc @ 0x7f6c98004940] Could not find ref with POC -3360 [hevc @ 0x7f6c98004940] Could not find ref with POC -3356 [hevc @ 0x7f6c98004940] Could not find ref with POC -3352 [hevc @ 0x7f6c98004940] Could not find ref with POC -3348 [hevc @ 0x7f6c98004940] Could not find ref with POC -3344 [hevc @ 0x7f6c98004940] Could not find ref with POC -3340 ************************ And the following I get as soon as I try to change ea dvb chanel ************************ [hevc @ 0x7f6c98262f00] get_buffer() failed [hevc @ 0x7f6c98262f00] thread_get_buffer() failed [hevc @ 0x7f6c98004940] get_buffer() failed [hevc @ 0x7f6c98004940] thread_get_buffer() failed ************************ At this point VLC is frozen for the most part (video) and shutdown will not complete. The reason I posted this bug against the kernel and not against VLC is that I assume this behaviour is against the do-not-break-userspace-rule. Thanks MH