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CentOS 6.9 not recognizing HDMI1 output

Posted: 2017/04/28 01:18:55
by eas3964
Hello, all...

I have an Intel G43/G45 Integrated Chipset on my motherboard and it has both a VGA and an HDMI output. However, only the VGA output is recognized. When I run xrandr, it says HDMI1 is disconnected, even though the monitor is plugged in and powered on. I see a lot of NVIDIA posts, but I have an Intel graphics card and need a post specific to this. This worked in CentOS 6.3 but when I upgraded to 6.9 the HDMI output became nonfunctional. Any help is greatly appreciated.

Thanks!

Attached are screenshots of my xrandr (I'm not sure how to pose code).

Re: CentOS 6.9 not recognizing HDMI1 output

Posted: 2017/05/05 12:47:51
by tunk
I've seen some Dell monitors where you manually have to select the input source.

Re: CentOS 6.9 not recognizing HDMI1 output

Posted: 2017/05/05 23:36:44
by eas3964

Code: Select all

[root@awips awips]# xrandr --output HDMI1 --mode "1920x1080_60.00" --right-of VGA1
xrandr: Configure crtc 1 failed
I had already run xrandr --newmode and xrandr --addmode. However when I run xrandr --output I get

Code: Select all

xrandr: Configure crtc 1 failed
How can I make this work? It'd be nice to have both monitors working. They both worked when I was running CentOS 6.3, but after the upgrade to 6.9 the HDMI stopped working.

Thanks!