3 ms·
> So they managed to let you hot-plug the GPU while the OS is running? Is that news? I think I've seen similar setup with ExpressCard-based PCIe adapters for d
by creshal 11y ago
> So they managed to let you hot-plug the GPU while the OS is running?
Is that news? I think I've seen similar setup with ExpressCard-based PCIe adapters for desktop graphics cards for a few years now. Thunderbolt also has had hotplug PCIe connections from the beginning. (Less elegant, of course, but the same engineering challenge.)
- dogma1138 11y agoThe seamless part is new, very new once a GPU is initiated it's locked, the fact that they can turn it on and off without a full reboot is quite amazing. If you run a hypervisor setup with multiple GPU's you need to make sure that the UEFI and the hypervisor/main OS do not initialize them until they are passed through to the guest VM and after that you can't recycle them easily and usually need to reboot the host if you want to pass them through to another guest.
- bcoates 11y agoIs that any different from how Windows has restarted the GPU and reloaded the driver whenever a the video driver crashes since Windows 7? I think the new part might just be userland software being able to take advantage.
- dangrossman 11y agoEven that's not new. I had a circa-2010 HP Envy laptop would switch from discrete to integrated graphics when you unplugged, and had a tray icon to manually switch between them without rebooting. http://i.imgur.com/47z9U46.png http://i.imgur.com/47z9U46.png
- dogma1138 11y agoIt's not the same as disconnecting the GPU, it would go into low power mode but not disconnect the GPU completely. You have had that feature for quite a while, but it's not the same as reinitating the GPU completely from scratch.