Help - Dahua HDCVI- stuck with wrong resolution/fps - no OSD

[Cop 0]

Hello Fellas,

 

I'm new to this forum and this is my first post. I'm facing an extremely frustrating problem. I bought a Dahua DVR (XVR4108 of 720P/1080N resolution) and a bullet HDCVI camera Dahua HAC-HFW-1220R of 2MP resolution. In fact if I had gone for a 1MP camera it would not have caused this trouble, I just bought it because I was told it was supported and I got it cheap.

 

Now while experimenting with the OSD menu of the camera I wrongly put the video resolution to 720p/50 fps and since that time the DVR doesn't show any video. It is black, no OSD even, and displays a message "Invalid Camera Format". I have tried so many things but the camera doesn't go to the factory settings nor does it display the OSD. There is no reset button on the body of the camera nor any reset cable. Tried shorting the BNC, reversing the power polarity...nothing works. I have struggled for many hours now lastly turning to this forum. Any help will be greatly appreciated.

 

http://www.dahuasecurity.com/download/DH-HAC-HFW1220R_User_Manual_20160922.pdf

 

Best Regards,

[MrMxyzptlk 0]

I bought a Dahua DVR (XVR4108 of 720P/1080N resolution) and a bullet HDCVI camera Dahua HAC-HFW-1220R of 2MP resolution. In fact if I had gone for a 1MP camera it would not have caused this trouble, I just bought it because I was told it was supported and I got it cheap.

 

Now while experimenting with the OSD menu of the camera I wrongly put the video resolution to 720p/50 fps and since that time the DVR doesn't show any video. It is black, no OSD even, and displays a message "Invalid Camera Format".

 

You have my sympathy and I'm afraid little else as we work with Speco and Truvision depending on how serious the customer is. We put together a huge system with 4MP cameras on the outside and 2MP on the inside. Our sales rep didn't bother to mention that the 4MP IP cameras wouldn't be worth a **** on the NVR that only supported 1080P... I wanted to find the rep and smack him with one of the NVRs. We had to set the resolution on the cameras to 2MP to make them work and now are having to get a new 16 channel NVR that can handle recording 4K resolutions.

 

I made up a little card to help line up camera resolutions to recording formats and perhaps this will help you in future endevours. I will try to put it up here, we shall see what it looks like...

 

Monitor Resolutions Camera Resolutions

Standard Aspect Width (px) Height (px) Standard Width (px) Height (px) Total (px)

SVGA 4:3 800 600 D1 704 480 337,920

WXGA/HD TV 16:9 1280 720 1MP/720P 1280 720 921,600

SXGA 5:4 1280 1024 1.3MP/960P 1280 1024 1,310,720

Full HD 16:9 1920 1080 2MP/1080P 1920 1080 2,073,600

WUXGA 16:10 1920 1200 2.3MP 1920 1200 2,304,000

WQHD 16:9 2560 1440 3MP 2048 1536 3,145,728

4K UHD 16:9 3840 2160 4MP 2240 1680 3,763,200

4K UHD 16:9 3840 2160 5MP 2592 1944 5,038,848

4K UHD 16:9 3840 2160 6MP 3032 2008 6,088,256

8K UHD 16:9 7680 4320 8MP 3264 2448 7,990,272

[Cop 0]

Thanks MrMxyzptlk, I appreciate the info you posted and it will surely come handy in the coming days. For the present I'm stuck with this brick. Do you think it will display the video if I connect it to a 2MP DVR or a Full HD LED monitor (using RCA converter) for that matter?

[Dariobocc 0]

I had same problem today. Connect the non HDCVI output to another channel. You should be able to see video. Now, you can send PTZ commands from "Invalid Camera Format" channel and see what you are doing from the non HDCVI channel.

[Enercorp srl 0]

Someone solve the problem? I have the same problem and Is not possibile to solve from xvr...Is not possibile also ti reset the camera...please help me!!

[ihadi 0]

Did you fix that problem I’m having the same issues ?

[tomcctv 190]

Hi this is a simple fix 

it just means you have taken the recorders resolution past the resolution of the monitor you are using ….. you need to connect your recorder via hdmi to a higher tv and then reset the output