files: 0.874 peripherals: 0.869 user-level: 0.855 performance: 0.852 virtual: 0.838 device: 0.820 graphic: 0.818 mistranslation: 0.789 architecture: 0.777 semantic: 0.693 network: 0.658 permissions: 0.618 hypervisor: 0.574 socket: 0.573 vnc: 0.535 debug: 0.528 register: 0.513 kernel: 0.512 ppc: 0.494 risc-v: 0.436 PID: 0.431 VMM: 0.405 assembly: 0.378 boot: 0.348 TCG: 0.329 KVM: 0.316 x86: 0.315 i386: 0.282 arm: 0.255 Aten USB to Serial bridge does not work with qemu under Windows 10 I would like to use MSDOS 6.22 with qemu (unfortunatelly lot of our test programs has been written in dos). I tried to connect two laptop by RS232 port, one of the machine have a built-in serial port and run with native MSDOS 6.22 with 4.0 norton commander. Another machine have only USB ports and i try to use a new Aten USB to Serial device. Ok. Has been started qemu with -serial and -chardev parameters, at startup appear a window with serial port setting such as baud rate, start bit, etc... Quemu has been satrted succeeded but serial port cannot be used becouse was nothing activited on usb serial adapter :( I tried same configuration with VirtualBox and everything was worked fine (serial connection was estabiled and copied several files from one machine into another machine), seems to be the emulated serial port has been worked fine. I would like to use qemu, i just thougt qemu is better, simple and faster... Exists solution or is this a qemu bug? Thank you! I forgot that the environment is Windows 10 64 bit. Hi again, Seems to be there is no solution for my problem :( I have succeeded create NTVDMx64 patch on my Windows 10 installation, so i can run directly 16 bit ms dos applications without any dos emulator. I take the initiative to close the bug. Bye The QEMU project is currently moving its bug tracking to another system. For this we need to know which bugs are still valid and which could be closed already. Thus we are setting the bug state to "Incomplete" now. If the bug has already been fixed in the latest upstream version of QEMU, then please close this ticket as "Fix released". If it is not fixed yet and you think that this bug report here is still valid, then you have two options: 1) If you already have an account on gitlab.com, please open a new ticket for this problem in our new tracker here: https://gitlab.com/qemu-project/qemu/-/issues and then close this ticket here on Launchpad (or let it expire auto- matically after 60 days). Please mention the URL of this bug ticket on Launchpad in the new ticket on GitLab. 2) If you don't have an account on gitlab.com and don't intend to get one, but still would like to keep this ticket opened, then please switch the state back to "New" or "Confirmed" within the next 60 days (other- wise it will get closed as "Expired"). We will then eventually migrate the ticket automatically to the new system (but you won't be the reporter of the bug in the new system and thus you won't get notified on changes anymore). Thank you and sorry for the inconvenience. [Expired for QEMU because there has been no activity for 60 days.]