3 long/3 short beeps at boot after connecting new monitor - only happens with DP, not with HDMI

[palacekeeper]

Installed a new Samsung Odyssey G9 monitor, and it works fine except when restarting the computer. If the monitor is powered on at restart, I get 3 long beeps and 3 short beeps and it does not boot up. If I power off the monitor and then wait until past boot time and then power it on, it's fine.

Things I've tried:

1. HDMI works fine - this only happens with DP. However, I can't use the HDMI cable or I won't be able to use the full resolution and refresh rate.

2. The previous monitor works fine and was using DP without any issues, but at a lower resolution.

3. BIOS is up to date.

4. Reseated the graphics card (GTX 1080). It is the original card that came installed with the PC.

5. I checked with NVidia before buying the monitor and they said the card would support 5120x1440 at 60Hz, but it is detecting and using 120Hz. I tried lowering it to 60Hz but it had no effect on the boot issue.

6. I also toggled the "integrated video" option in the BIOS, but that also had no effect.

Most of the references I've seen indicate a faulty or poorly seated video card, but that seems unlikely since I reseated it, it works fine once Windows is up, works fine with HDMI, and the prior monitor worked fine using the DP cable.

I'm thinking that maybe something at boot time just can't handle the resolution at 5120x1440.

Any ideas?

thanks.

[itsmyname]

@palacekeeper -- they said the card would support 5120x1440 at 60Hz, but it is detecting and using 120Hz. 

Usually, refreshing the screen at 120 Hz is better than refreshing at 60 Hz.

Other than that, I have no advice to share.

[palacekeeper]

Agreed. My point in mentioning that was that it was actually using a higher refresh than Nvidia claimed it could. In either case, though, it still does the beeps at reboot. If you wait for the series of beeps to complete 5 times, it then proceeds and all is well once Windows starts up.

The only disadvantage to this, other than the extra boot delay, is that you can't enter any BIOS settings and would need to switch to HDMI in order to access them. 

Since the video card seems fine and is seated correctly, I'm thinking this has to be either a limitation in the BIOS/UEFI mode or something specific about the monitor that it doesn't like. My assumption is that it doesn't "understand" the video settings that are being detected at boot time, and is behaving as if it was getting bad info from the video card.

I'm wondering if there is some setting in the BIOS that might affect this behavior, but didn't see anything that stuck out.

Anyone else have any other ideas on this, or has anyone else seen this occur?

Note: This is actually the second monitor that has done this. The first monitor I ordered (same model) was defective (screen) but it did the exact same thing, so it is something with this model of monitor and not a defect of the monitor itself, it seems.

[Prométhée]

the error code actually indicates a problem with the video card
so it shouldn't be the monitor directly
for some reason the card doesn't seem to accept the screen with the port and resolution at this time..

" card would support 5120x1440 at 60Hz, but it is detecting and using 120Hz"

do you have the native screen resolution?

• Rear I/O connectors: Dual-Link DVI-D + HDMI + 3 DisplayPort
• Maximum resolution:
  • DisplayPort resolution: 5120 x 3200 x 24 bpp @ 60 Hz / 7680 x 4320 @ 60 Hz YUV 420 8 bit
  • DVI resolution: 2560 x 1600 x 24 bpp @ 60 Hz (Dual Link)
  • HDMI resolution: 4096 x 2160 x 24 bpp @ 60 Hz ( HDMI 2.0)

[palacekeeper]

Thanks. To clarify, Nvidia told me that it supports 60Hz at that resolution, but it is automatically choosing 120Hz within Windows. 

I have also tried setting it back down to 60Hz within Windows,  but the same issue and beeps occur at 60Hz when rebooting.

[Prométhée]

hi

sorry but I am going to leave
that doesn't answer the question..

so otherwise open nvidia control panel
what options do you have, and what is selected

hdmi here but

[palacekeeper]

Apologies, I overlooked that part of your question. Here are the settings showing 5120x1440 (native) in the Nvidia control panel:

[itsmyname]

@palacekeeper -- Anyone else have any other ideas on this

Before you power-on the computer, power-off the monitor. Then, about 10 to 15 seconds after powering-on your computer, power-on the monitor. Then, the "plug-and-play" features within Windows will configure to use the monitor.

>  Nvidia told me that it supports 60Hz at that resolution

That seems to be a correct statement. 

It is a different, but also correct, statement that the monitor, and your video-card, also support 120 Hz at that resolution.

Nvidia did NOT say that it does NOT support 120 Hz.

[palacekeeper]

Thanks, that is the workaround I have been using. Even easier (but takes longer) is to just let it do the beeps for 5 rounds and then it moves past. 

It's not a show-stopper, but seems like an unexpected and unnecessary incompatibilty. I was hoping for a resolution, but in the meantime I'm just using the workarounds.

I appreciate all the responses so far!

[Prométhée · Accepted solution]

What I gave you @palacekeeper  is the data, from the hp graphics card, there may not be all the information possible

https://support.hp.com/za-en/product/omen-by-hp-870-200/13687063

I see you are on pc configuration, at the top you must have Hd option, ultra HD, as seen in my image, you have the same result here, same problem
I saw a solution some time ago, but it was with the gtx 1070
it seems to me that this is possible with other models
I can tell you, give it a try, I don't know the risk, and if it will solve your problem

I've been tempted to do this, but I don't have this problem with two screens, but I use an adapter, I don't know if that's why  

Connect two HDMI monitors, with a graphics card 1 hdmi 1 displayport

but suddenly, fearing the worst, I preferred to stay there, if it crashes, I no longer have a graphics card!
So see, it's for information, it's up to you

Omen 870-244 :: 3 long , 3 short beeps on startup [Resolved] - HP Support Community - 8190711

https://nvidia.custhelp.com/app/answers/detail/a_id/4674/~/graphics-firmware-update-for-displayport-...