Hi Luke,
Forgive me if this has been discussed before but has the possibility of supporting a model where by a dedicated GPU could be installed in a second slot in order to work in concert with an EOMA SoC?
For instance, a micro desktop / laptop could have two slots:
- EOMA68 (for the SoC) - EOMAXX (for an optional external GPU)
Cheers, Bluey
On Tue, Jan 23, 2018 at 3:55 AM, Bluey bluey@smallfootprint.info wrote:
Hi Luke,
Forgive me if this has been discussed before but has the possibility of supporting a model where by a dedicated GPU could be installed in a second slot in order to work in concert with an EOMA SoC?
not a snowball / cat in hell's chance.
how would it communicate? what's the means by which the Card would communicate with the GPU?
most GPUs are done by PCI express which is... um... 32 GIGABYTES per second (!!!!!) on a PCIe 3.0 x16 system.
the amount of power needed for that *alone* far exceeds the entire 5.0 watt power budget for EOMA68 Cards! and that's just for *driving* the PCIe signals!
i'm going overboard somewhat: there is actually a way: use DisplayLink technology. DisplayLink has older products such as the UD160A using USB 2.0, and their newer ones use USB 3.0 and have improved the capabilities of what they can do / draw.
however we cannot *rely* on any given Card being *guaranteed* to have USB 2.0, some Cards are perfectly well permitted to provide even USB 1.1 (it's not recommended but it's possible). using DisplayLink is something i put somewhere in the notes if Housing Designers really really want to create a Dual Screen Housing.
l.
arm-netbook@lists.phcomp.co.uk
-
Bluey -
Luke Kenneth Casson Leighton