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couple of grub oddities...

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    couple of grub oddities...

    Hi there -

    I am using three monitors: VGA, DVI, and DVI-via-DisplayPort-adapter.

    When I just use a DVI and VGA monitor, grub shows up on both screens. When I use three, grub only shows up on the VGA monitor, and the other two monitors receive no signal. This is a problem because in that configuration the VGA monitor is the off-to-the-side, not-always-used-or-turned-on monitor, where the digital connections serve the main two screens.

    Is this likely to be a grub thing, or more likely a motherboard thing? I'll play with some grub graphics settings in the meantime, but i wanted to solicit opinions on it. It's a new Gigabyte GA-Z87X-UD3H (with a Haswell 4770K).

    A second oddity: when the grub screen appears on two monitors (DVI and VGA), there is a bug where the menu selection updates on every other keystroke on one of the monitors, but properly on the other. E.g. it starts at Kubuntu, I hit "down arrow" and one of the screens goes down to the second selection and the other stays the on the first. I hit down again and suddenly both go to the third selection. The "proper" screen indicates what is actually selected, so it's not a big deal, but i thought i'd see if anyone else has noticed that. That i assume must be a grub bug?

    -c

    #2
    This is likely a motherboard thing. AFAIK there's no way to control which screen is the default display from grub. Basically, it sounds like your system sets the VGA port as the primary display when it's available. This new of a mobo might have a bios setting to force "primary display port." Similarly, the second "bug" is likely just grub not refreshing the other screen as often as the primary display. Here, I get grub only on the primary display and no signal at all to the secondary. However I'm am using a nVidia card, not an Intel CPU-based video.

    BTW: Congrats on the awesome hardware! That thing's almost a super-computer...

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