Question Monitor not receiving signal after cold boot, but OK after Reboot

[mwinnick]

I have a GeForce GTX 750 Ti running two Dell monitors. The problem described below happens no matter which cable (HDMI or Display Port) is attached to either monitor. My left monitor is the Primary, but the problem stays the same if I make the right monitor primary.

On cold boot my right monitor, whether on HDMI or DP, displays that it does not see a signal. My PC boots and the left monitor starts showing the process. A splash screen from the PC, then a rotating cursor, and then blackness though the monitor is on. My boot disk light is flashing as the system is accessing the boot disk (it's an SSD and it is the only disk I run). After a wait, with nothing showing, I shut down by holding the power button (which was also used to boot) for a few seconds until the PC no longer shows it's running, and both monitors indicate they are offline.

I wait 30 seconds or so and then press the power on button. Now the boot sequence starts and displays on the left monitor and shortly after I am presented my Windows logon screen, and after doing so the right monitor displays the same as my left monitor and everything then works normally.

I have tried everything that Nvidia and EGA (the actual card manufacturer) have suggested. I've switched the monitors to different feeds (so the right started out using HDMI and I switched it to DP, and vice-versa for the left monitor. No help.

I've had my system for years with no problem and then it just started every day.

Anyone have any ideas?

 

[Ralston18]

Update your post to include full system hardware specs and OS information.

Which model(s) Dell monitors? Does Dell provide drivers for those monitors?

Look in Reliability History/Monitor for any error codes, warnings, or even informational events being captured during the initial boot process and the restart. Especially any entries relating to the GPU, video, audio, etc..

BIOS: look for verbose mode. What that should do (if availalable and enabled) should do is display step by step what is happening during the boot process. May provide a clue.

Look in Update History for any failed or problem updates just before the monitors stopped working.

 

[mwinnick]

There were no failed updates.

I will look up how to get verbose mode to operate.

Where is Reliability History/Monitor? I have no clue.

My Dells are U2715H and U2724D. I've had the 2715 5 years and the newer 2724 two months or so BUT this problem existed prior to getting it and is in fact why I decided it was a monitor problem and bought the new monitor. Obviously it wasn't a monitor issue, but it was nice to get rid of a 24" for the 27". They do have drivers and have been running on them with no problems since I installed them.

I am running an HP1360T with an i7-3770 CPU @ 3.4 GHZ, BIOS AMI 7.15, 7/2/2012, 16GB Memory with a EVGA GeForce GTX 750 Ti, the latest W10 update was Version 22H2, though in the details the OS says Version 10.0.1.19045 Build 19045, latest update on 4/15/24.

 

[mwinnick]

I solved the problem. I changed my driver from the latest one to a driver dated 01/10/2022 (Version 511.23). A friend had bought the same card as me when I did and remembered that at one time he upgraded drivers and ran into problems which caused him to restore his old driver. He gave me the version he was using and that is what I loaded. I notified Nvidia and EVGA, the manufacturer, just in case they wanted to research further. For me I will stick with the older driver.