SB16 audio playback freezes emulation in Windows 95 guest
Bug #1873769 reported by
Marko Štamcar
This bug affects 2 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
QEMU |
Expired
|
Undecided
|
Unassigned |
Bug Description
- QEMU 4.2.93 (v5.0.0-rc3) built from latest git master 20038cd7a8412fe
- Launched using "qemu-system-
- I have attached video screen capture of the issue
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I decided to make my first ever QEMU build after encountering the dsound issues using the latest 4.2.0 binary from https:/
Changed in qemu: | |
status: | Expired → Confirmed |
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This is with GTK UI? Do you still have the same problem if you use Spice and remote-viewer instead?
(GTK UI and Sound Blaster 16 emulation don't play well together. GTK UI does screen updates only when the main event loop becomes idle, but it never becomes idle when SB16 audio is playing due to the way hw/dma/i8257 works. The combination of GTK UI screen updates + SB16 DMA transfer additionally causes i8257_dma_run() getting called at a very rapid rate.)