On 4/9/2015 6:39 PM, hai wu wrote: > Using large Dell U2412M monitor here, with CentOS7. It is really slow > to boot up, each time it would hang after the following messages for a > very long time, with no logs, then it would continue to boot up fine: what video card is this U2412M connected to, and via what cable type (DVI, HDMI, DisplayPort, VGA, or ?) I can't see any scenario where the monitor would affect boot time like that. -- john r pierce, recycling bits in santa cruz