not able to use external monitor with Nvidia

[abdou777]

Hi All,

Specification :
Laptop : HP ZBook 15 G3
Kernel : Linux 4.14.2-1.el7.elrepo.x86_64
Centos version : CentOS Linux release 7.4.1708 (Core)
Graphic : lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 530 (rev 06)
01:00.0 VGA compatible controller: NVIDIA Corporation GM107GLM [Quadro M1000M] (rev a2)


After few years of experience with Ubuntu, now I switch to centos, the first time tried to install Centos was in text mode, the installation was OK, I connect my external monitor and it was detected and everything work fine, after few days the system freeze 4-5 times/day, so I decided to reinstall once again. When I plug my bootable USB and follow the steps, it fall to dracut and it says /dev/root does not exist, I find a solution y adding rdblacklist=nouveau to boot params to make graphical installation, everything went fine, when I reboot the system I'm stuck on grey screen just after login window, I follow this link viewtopic.php?t=61162 and configure nvidia and bumblebee and nvidia and it work fine 5im able to login and use my laptop normally), unfortunately when I connect my external monitor, it wasn't able to detect it , this is something critical for me...

I would appreciate your help, thanks

[iwishitwouldwork]

yep, i had a similar problem.

getting rid of nouveau is step one. step two is to put in the nvidia driver
for your card. and therein lies a tale.

1. go to rpmfusion and get their repo, put it in your /etc/yum.repos.d
and i assume you know the rest of the repo biz. then install the
nvidia driver, yum list nvidia* and pick something out.

2. or go to nvidia's web site and download the driver source,
compile it for yourself, install it. the script that comes with
it does that -- so no big deal. IIRC i had to install the kernel
source to get the compile to work.

i've been doing 2, though i'd like to do option 1, though i'm
presently planning to swap out the card for a radeon to see
whether i can avoid this altogether. i have the new card but
a time slot in which to do it.... not yet.

if you get 1 to work, post that.

j.

[TrevorH]

ELRepo package the nvidia drivers and tends to be the go-to place for CentOS users.