slf software GmbH wrote:
wtfl? 1280x720 is highest resolution on HDMI??? VGA does 1920x1080 fine. I don't understand... is this a hardware limitation or can this be fixed somehow in the driver or wherever?
I'm sure it's a hardware limitation unfortunately, the GMA 3150 only originally supported analog <1200p VGA outputs, and only a single LVDS channel. Some manufacturers like Zotac added in a separate digital HDMI controller to tap into this LVDS, but I'm afraid 1366x768 or 1280x720 is as high as it'll ever go.
thanks, powerarmour for your answer.
I talked to xorg driver devs on irc and they confirm this: intel crippled the 3150, it has no native HDMI output. Zotac put a LVDS to HDMI bridge to "fix" this. Either the bridge can't do >1280x720 or the LVDS on the intel card can't do more. Either way: we're stuck the VGA. Damn.