Upgrade to 8.4 .2105 Problems

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The yum upgrade from 8.3 to 8.4 on my main machine  looked as if it was working fine so I went to have a coffee.

When I came back the screens were blank so I don't know what happened. On rebooting the screens are still blank.

I have two graphics cards running three displays.

I have a "rescue" system on the same machine that upgraded from 8.3 to 8.4 fine. The 3 screens work fine on this.

I am not sure the upgrade completed properly. For example the new kernel:

 vmlinuz-4.18.0-305.3.1.el8.x86_64

was not present in /boot. Even worse, "yum upgrade" said there was nothing to do and would not install it. I installed the kernel package manually.  /etc/redhat-release says CentOS Linux release 8.4.2105


My main question is: Where are the config files for the screen(s). This used to be something like /etc/X11/xorg.conf.

Since I have a working rescue system my current plan is to compare/copy the config files.

Suggestions please as to where I should start. It is difficult to work without a GUI. I have ssh access to the machine.

Thanks

Alan

--

Alan McRae

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