Replaced monitor. Now during boot - screen blanks (Revivable with cable re-conne

[mahesh]

I have been using my Ubuntu 22.04.2 machine for a fairly long time without issues.
All this time I had a very old monitor that has 1080p resolution at 60Hz.
That old monitor was connected to Intel CPU's (11th gen) integrated GPU via DisplayPort.


Recently I changed to a new monitor which is capable of 4K at 144Hz.
I had set its resolution to 1440p and 120Hz.

But whenever I power on the PC then I am able to see Ubuntu OS/Kernel loading, but then the screen blanks (all I can see is a black screen) and I get a monitor's message about a lost signal.
(Note that I passed the phase of GRUB.)

So I disconnect the DisplayPort cable and then I connect it again - which makes the screen to appear without issues.
Conclusion: The issue isn't with the Graphic Driver (I don't need to update this).

I also noticed that by clicking *twice* (power off and then power on) on the Power button of the monitor, then after the 2nd click the monitor displayed Ubuntu properly.

I had read several resources online (URLs referred below), but I don't think that these are necessarily related to me issue, except maybe for the GRUB entry options which replaces "quiet splash" with "nomodeset".
Also I don't want to change anything "just to try if it works" because it might break something.

I prefer to understand what is the issue in my case - for example by reading an error in the logs - and only later after verifying the issue - then I will apply its solution.

My GPU driver is - according to "lspci -vv":
"Kernel driver in use: i915"