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Suggestion: Option to choose IRQ ports used by devices

Open brunocastello opened this issue 1 month ago • 1 comments

Describe the issue
Can we add an option to set the IRQ for the Network card? I have been attempting to use this driver for 65K colors (https://github.com/PluMGMK/vbesvga.drv) and higher resolution, which works, but when I add a network card, for example NE2000, I cannot use it because the video driver wants that IRQ 9 port NE2000 is requesting too, therefore the networking no longer works. I confirmed it by reverting to the default VGA driver of Windows (Windows For Workgroups 3.11) and the networking worked again.

There are no other drivers for WIndows 3.11 on QEMU/UTM which would provide a such good video experience, so we need an option in UTM machine settings to change the IRQ the network card is requesting for use there.

I think the iOS version of UTM SE would need that too, since I was doing the machine on my mac to port it to my iphone later.

Configuration

  • UTM Version: 4.7.3
  • macOS Version: macOS Sequoia 15.7.2
  • Mac Chip (Intel, M1, ...): MacBook Pro M4 Pro

brunocastello avatar Nov 21 '25 02:11 brunocastello

I have the same setup as you with both the [host-only] networking and the enhanced graphics working; my NE2K [ISA] IRQ is 2 so it's not a direct fix to your question but a functioning alternative. The PCNet also functions fine with the enhanced graphics drivers, too and I believe I'm using IRQ10 for that

_Edit: Yeah, IRQ10 with PCNet_

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ghost avatar Nov 28 '25 13:11 ghost