Hello to all guys! usually I worked with Windows 7+Roland UM2 Usb-Midi interface. I send Midi Sysex messages to Roland SC-88 Module using this interface. I Program some Midi Encoders boards sending Midi messages. Ok, no problem, all runs fine
Due to modern Times I use notebook HP with Win10, but Roland UM-2 USB-MIDI doensnt' support Win10. Well, I buy a Miditech 2x2 Midi USB, Install it easily (it is a "Class Compliant" so it use native Win Drivers).
Well, short midi messeges as Note On/Off are sent well. BUT... When you send a package (As Sysexes or Midi encoder board program) many bytes are WRONG!!!! This is a disaster!
So, I tried another USB-MIDI , a MidiPlus ... OK, SAME ERRORS APPEARS.
Finally I tested modern interfaces in WIn7 and .... they use MIDI NATIVE DRIVERS ... result: ERRORS ALWAYS THE SAME
Resuming: All midi-usb interfaces that uses Win native Drivers seems have serious issues!!!!
If I use producer drivers, Messages are sent correctly (Win7+Roland UM-2 with related Roland Drivers)
Have you encountered similar issues???
Toady I cannot pass to Win 10 due to these questions!!
Thanks to everyone