[CentOS] video problem since 2015-04-01 update

[Bill Maltby (C4B)]

On Sat, 2015-04-04 at 11:24 -0500, Francis Gerund wrote:
> Is there a way in Centos 7 to boot into an alternate video setup?
Check the kernel parameters - ISTR long ago using a paramer to the
kernel added to the grub boot line that had one of my machines go into
VESA mode. ISTR some numbers after "=" that specied which VESA mode to
use to get better resolution (more lines/screen).

> 
> <snip>

Bill