I’m developing a suite of mobile apps – specifically Windows Store/Mobile 8 and Android.
Having installed VS2012 and then Monodroid, I was then able to start x86 Android images in the emulator and take advantage of the Intel HAXM acceleration (emulator output confirms HAXM working) to make the VM buttery-smooth.
I then installed the Windows Phone 8 SDK – which enables the Hyper V role – and now the emulator says it can’t find HAXM. I then uninstalled and tried to reinstall HAXM, but now it won’t – saying that my processor doesn’t support it.
The VT-x extensions are still enabled in the BIOS – so I’m thinking that Hyper-V has blocked the Intel HAXM from working.
Of course it’s not a killer – but a non-accelerated Android image is considerably slower than one with HAXM enabled – anybody else encountered this problem? Googling isn’t bringing up anything obvious…
Update (30th Nov 2012)
Per @alexw’s suggestion I tried stopping & disabling Hyper-V; with a restart. It still doesn’t work.
I realise the next step is probably to the Windows Phone SDK (and remove Hyper-V) and then try again – to confirm that it really is the presence of Hyper-V. At the moment this is less than convenient – but I’ll try and do it soon and update.
The best thing you can do to get HAXM detect VT again, is turning the whole Hyper-V “Feature” off. Open “Control Panel -> “Programs” -> “Turn Windows features on or off” (under “Programs and Features”) and locate “Hyper-V”, uncheck, reboot.
Looks like Hyper-V and HAXM are mutually exclusive, which is kind of a nuisance, because you even need to reboot twice to enable or disable either feature.