HDMI to Monitor Problem

Its possible the native resolution of the monitor is not supported by the Rpi. Or maybe the other way around as well.

UpStar P190WM

Well I can't find a user manual on-line for that monitor.  I did find that your monitor defaults to 1366 X 768 resolution and a 5:4 aspect ratio, which are unusual (in the U.S.).  If you have not already tried the monitor's Menu settings to change resolution and other video format options, you should do that first.  If you have already tried that you will need to see if the RPi supports the monitor's fixed HDMI format.

HDMI has numerous configurations and Raspbian attempts to use the settings the monitor should be sending when the OS requests it.   This is an RPi reference that may help: https://www.raspberrypi.org/forums/view … amp;t=5851

If you are not comfortable making changes to Raspbian you are probably better off exchanging the monitor for a different make/model.

Good luck!

All you need is s monitor that has a native meaning stock resolution of 1920 x 1080 or even 1024 x 768. It jusy needs to be one of the standard normal pc resolutions.

1366x768 is a pretty common resolution usually found in inexpensive notebooks and tablets.  It's also know as WXGA (Wide XGA).  The aspect ratio is not exactly 16:9, but it's very close (16.07:9.03).

The Rpi should support that resolution without any problems.  I would actually take a look at your HDMI cable.  Make sure it actually fits in the HDMI socket of the RPi.  The Atlas case opening might not be large enough for your cable, and if your cable is not pushed all the way in, you might get the symptoms you're getting. 

If in doubt, remove the RPi from the plastic case, and try again.

By definition laptops and tablets will use resolutions that are not "standard" and often have OS drivers to attempt to adjust for this.  If you check the raspberyypi.org link I included in one of my earlier responses you will see a table of the supported resolutions.

And since the Raspbian interface supplied with the A3D scanner does not include a GUI, the monitor should also support better than usual text rendering.

I modified my Atlas 3D RPi box so that the HDMI cable fits completely and seats well. To prove it I've plugged it into my 48" TV and it works perfectly but when I plug it into the UpStar I get pretty much nothing.

@Pirvan,  I really don't want to make this a debate since that doesn't help KennyB,  but my entire sentence read "By definition laptops and tablets will use resolutions that are not "standard" and often have OS drivers to attempt to adjust for this."  The key being an OS driver is needed as opposed to being supported by the built-in OS (Windows or Linux) defaults.  I have an Acer laptop that runs at 1366x768 @ 60Hz and even with its special drivers that resolution confuses many apps. so I had to patch it to use 1360x768 which is a standard, common, traditional, normal, etc. resolution.

If you read KennyB's first entry in this thread you will see he already did the correct steps to eliminate the RPi; the HDMI cable; and the connections; which is why I and others have focused on the monitor as the "problem".

And if you read the article in the link I sent what you show is a listing of the values to use if the monitor display is distorted.  Again, read through this thread and editing the "config.txt" values for one of these values was suggested.

Lastly, my aspect ratio notation had to do with my suggested monitor that supports multiple AR values in its Menu settings so that Raspbian doesn't have to be modified to get the best possible text rendering.

Anyway back on topic, it appears to me at this point KennyB is asking about exchanging the monitor for another model so he doesn't have to edit Raspbian files.  Personally I agree that exchanging the UpStar for a different monitor at this point is the best solution.

I posted the following on another thread I have on SoliForm regarding connecting my laptop to my Atlas 3D. I sort of feeds into what we've been talking about here, hence the post.

UPDATE: I finally configured my WiFi and have an IP Address of 10.0.0.26 for my RPi.

I'm trying to connect to it with my Windows 8.1 Laptop through the Ethernet.

I connected the cable and ran "ZenMap". This is what I got:

Starting Nmap 6.49BETA1 ( http://nmap.org ) at 2015-06-10 08:32 Pacific Daylight Time

NSE: Loaded 122 scripts for scanning.

NSE: Script Pre-scanning.

Initiating NSE at 08:32

Completed NSE at 08:32, 0.00s elapsed

Initiating NSE at 08:32

Completed NSE at 08:32, 0.00s elapsed

Initiating ARP Ping Scan at 08:32

Scanning 10.0.0.26 [1 port]

Completed ARP Ping Scan at 08:32, 0.92s elapsed (1 total hosts)

Nmap scan report for 10.0.0.26 [host down]

NSE: Script Post-scanning.

Initiating NSE at 08:32

Completed NSE at 08:32, 0.00s elapsed

Initiating NSE at 08:32

Completed NSE at 08:32, 0.00s elapsed

Read data files from: C:\Program Files (x86)\Nmap

Note: Host seems down. If it is really up, but blocking our ping probes, try -Pn

Nmap done: 1 IP address (0 hosts up) scanned in 6.24 seconds

           Raw packets sent: 2 (56B) | Rcvd: 0 (0B)

I ran Windows Network Diagnostics and it said; "Ethernet" doesn't have a valid IP Configuration. What am I doing wrong that my laptop does not recognize my RPi?

This sounds like a problem with the network configuration on your Windows laptop.  Are you able to access the Internet from this machine?

You can't use just an ordinary network cable. Now if you have a router you could use that cable and connect the Pi to your router then access it over your network. But to do a direct connection from your laptop to the Pi you need what is called a crossover cable. Two of the 6 sets of pins on one end are actually swapped from a standard cable.

if the pi is connected via wifi to your router, disconnect the ethernet cable and connect to your router over wifi with the computer, then try going to the raspberry's ip address.