[CentOS] Centos 7 on Dell Latitude E6500

Sun May 13 18:41:07 UTC 2018
Rainer Fügenstein <rfu at oudeis.org>

Mike, Johnny,

BIOS is version A29, which is the latest one on the dell website.

> Does this laptop have the Nvidia Quadro graphics option? If so try 
> booting with NOMODESET. Also, if available in the BIOS turn OFF 
> switchable graphics.

no,  it  just  has  intel onboard graphics, there's also no option for
switchable graphics in the BIOS. NOMODESET didn't change anything, but
it inspired me to remove the "quiet" kernel parameter.

now the following message can be seen:

duplicate  ACPI  video bus devices for the same VGA controller, please
try  module  parameter "video.allowduplicates=1" if the current driver
doesn't work.  

I  just don't know where to put this video.allow... parameter. did not
work as grub kernel parameter.

Best regards,
 Rainer                            mailto:rfu at oudeis.org