![]() I also tried -hwaccel nvenc, which is rejected. Failed setup for format cuda: hwaccel initialisation returned error. The ffmpeg command that includes -hwaccel cuda resulted in: Hardware is lacking required capabilities However, my batch file that specified cuda for both decoding and encoding failed to run. HandBrake and OBS Studio found the card and used it with no problem. ![]() I really only need it for hardware acceleration. The Nvidia card is still there, but with no monitor attached. So I re-enabled the on-board Intel adapter, and made that my primary and only video with a monitor. ![]() (The problem is apparently split between VirtualDub and Nvidia, as all other programs such as VideoLan, Avidemux, HandBrake, OBS studio, etc, all appear to work fine.) ![]() I tried all of the various discussion boards, and nobody has a good solution. The display gets screwed up, previews don't work, and all sorts of other problems occur. However: VirtualDub, a program I use frequently, has a problem with Nvidia cards (at least on Windows 10). ffmpeg worked as expected, the CPU could be used for decoding and encoding. At first the built-in Intel was disabled, running only the Nvidia card. I just set up a 'new' PC with built-in Intel video and an Nvida card: mostly to speed up video processing with ffmpeg and other programs.
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