Raspberry Pi Not Working on certain HDMI monitor - raspberry-pi3

I have a Raspberry Pi 3 and a 7 inch HDMI Display monitor 800 by 480 resolution. When I connect the Raspberry Pi to the TV monitor by HDMI port, it works fine, but when I connect the Raspberry Pi to the 7 inch HDMI Display, the screen stays black. I have tried changing the Raspberry Pi screen resolution and multiple different settings, but nothing makes it work. Is there any way I can get this to work? Could I test to see if the monitor is even functional?

I recently discovered that part of the HDMI monitor depends on the touch screen USB and Micro USB being in as well as an HDMI port. Once I plugged this in, it received enough power to show the something on the screen.

Related

Windows iot LCD screen for raspberry pi

Please apart from the 7" LCD touch screen, which other lcd screen can work with raspberry pi using windows iot core operating system
It is recommended to use the screen device which is listed in the Hardware compatibility list. As mentioned in the document, this list is not exhaustive. There are many other peripherals not listed on this page that are compatible with Windows 10 IoT Core. You may try with other screen, maybe it is also compatible. If you just want to use a display screen without touch input, in general the screen with HDMI interface is usable.

Turn off HDMI Output with Android Things on Raspberry PI 3

I'm creating an Android Things device using a Raspberry Pi 3, which will be connected to monitor. The monitor should be on all of the time, but I'd like a way to "turn off" the device (turning off the HDMI output so that the monitor can go to low-power standby mode) so that I can turn the device on and off remotely or with a timer, rather than having to manually push the monitor's power button.
Is there a way to control the Raspberry Pi's HDMI output (turn the display on or off) in an Android Things project?

Loss of Resolution using Display Port Adapter

I have a Laptop running Windows 7, set up to connect to two Asus Monitors.
My Laptop (Lenovo) only has one VGA and One Display Port.
When hooking up these monitors I must use a Display Port to VGA adapter. Both Monitors go to different KVM Switches which connect to the Monitors.
Monitor A. It appears that the Monitor connected through the display port adapter shows a generic name LCD_VGA and has a (recommended) resolution which is max of 1280X1024
Monitor B. The other monitor shows a correct name ASUS VS238 and a real (recommended) resolution of 1920X1080
When I switch cables say A = Display Port Adapter and B = Direct VGA the Resolutions Switch. A = 1920X1080 Max and B = 1280X1024 Max.
I have tried Detect under Screen Resolution, a Computer Reload, KVM Context Switches, Installing a new 1920X1080 Driver for the monitors, and Using Custom Resolution Via Nvidia Control Panel. None seem to work.
Is it possible the Display Port breaks the device information communications somehow? Any other hints?
you need to disclose what kvm switch(es) with your setup. Looks like your kvm switch(es) did not do the EDID emulation via the DDC communication between the KVM switch(es) and your connected system.
But for sure, it is EDID emulation issue.

Screen Resolution is reduced and cannot be reverted

I have a laptop(Sony Vaio VPCSA9e) (OS: Windows 7) and a monitor (LG W1945S). I used to connect the monitor to my laptop in 1440X900 screen resolution without any problem. (I connect it via VGA cable.)
But, somehow, when I now connect the monitor, the screen resolution is 1024X768 and I cannot change. I also recognized that "Device on VGA" is selected for display option instead of W1945 as before.
There are some problems similar to mine in the Internet and I have:
1) Updated graphics drivers
2) Updated monitor driver (I ensured that default screen resolution is 1440X900 in .ink file)
3) Tried with another VGA cable.
However, none of them didn't work. Do you have any suggestions ?
Okey, I solved the problem. It is due to VGA cable as pointed out prior questions. I was unlucky because my second VGA cable did not work. Bingo in third!

lcd tv stopped working (dvi to hdim)

I have a dual monitor setup,
1: a computer monitor connected via vga
2: a samsung lcd tv conntected via dvi->hdim cable
Until yesterday, this setup was working just fine. Today when I booted windows 7, the bios & windows loading ... screen shows up fine on my lcd tv
however, when windows loads and shows my desktop, my TV goes blank, and I only get the desktop on my computer monitor.
When I go to "screen resolution" and "detect", I only see my computer monitor listed.
As far as I know, no new display drivers were installed, I am using nvadia gt300.
Also, since the bios/welcome screen does show up on my TV, I can root out the tv/cable being faulty.
has anyone encountered something similar before ?
I had exactly the same problem. I de- and reinstalled drivers, I deinstalled the 11/18 Windows Update, I turned my monitor off and on again at least a dozen times as did I unplug and replug the HDMI cable - nothing worked.
Then, in an act of despair, I unplugged my monitor's power cable, replugged it and.... here we go again!
HTH!
Chris

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