Cant set dual 4k monitors Raspberry Pi 4

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Re: Cant set dual 4k monitors Raspberry Pi 4

by frujo » Thu Dec 12, 2019 5:10 pm

Success! Both monitors works!
I can´t explain what the problem was, but the following steps fixed the issues:
- format SD card (with SD Card Formatter)
- install/update the current version (5.8.88) of WTware on PC
- start WTware Center
- create new Boot SD
- put in the Boot SD in the Raspberry Pi > power on
- get correct configuration to the Raspberry Pi while using WTware Center
- reboot RPi4 > works
No special settings for second monitor needed, config.txt left as created.

Thanks for your help!

Re: Cant set dual 4k monitors Raspberry Pi 4

by frujo » Thu Dec 12, 2019 11:30 am

Good morning akatik,

thank you for your answer.
I have format the SD card, install new wtware version on it and remove all lines from config.txt.
Now the Raspberry Pi doesn´t boot wtware. I tried different SD cards, different wtware versions, but no variant run ...
If I start with Raspian the Raspberry Pi start normal, also with two monitors.

I will looking for the issue next day.

Re: Cant set dual 4k monitors Raspberry Pi 4

by akatik » Wed Dec 11, 2019 5:36 pm

frujo
Two regular 1920x1080 displays should work out of box if user does not prevent them from working. Format SD card and install wtware on SD again. It will restore config.txt you broke. Also, remove all lines from config as logging manual says: https://wtware.com/logs.html
2. Remove all lines from terminal configuration file. Absolutely all.
And write config with only two simple lines:

Code: Select all

connection
connection
You should get menu on first monitor and blue fill on second.

Re: Cant set dual 4k monitors Raspberry Pi 4

by frujo » Wed Dec 11, 2019 1:59 pm

thx for your answer, the log files I have sent to support@wtware.com

Re: Cant set dual 4k monitors Raspberry Pi 4

by aka » Wed Dec 11, 2019 12:46 pm

frujo wrote: Wed Dec 11, 2019 10:28 am Good morning,
yes, it´s not 4k monitors (I should have opened a new topic?)
Yes. For 1920x1080, you do not need 4k magic. It should just work with default settings.
frujo wrote: Wed Dec 11, 2019 10:28 am But it doesn´t work and I can´t find the problem to send the picture on both monitors.
https://wtware.com/logs.html

Re: Cant set dual 4k monitors Raspberry Pi 4

by frujo » Wed Dec 11, 2019 10:28 am

Good morning,
yes, it´s not 4k monitors (I should have opened a new topic?)
But it doesn´t work and I can´t find the problem to send the picture on both monitors.

Re: Cant set dual 4k monitors Raspberry Pi 4

by aka » Tue Dec 10, 2019 10:40 pm

Manufacturer site: https://iiyama.com/gl_en/products/prolite-XB2783HSU-B3/
Native resolution 1920 x 1080
It's not 4k monitors.

Re: Cant set dual 4k monitors Raspberry Pi 4

by frujo » Tue Dec 10, 2019 3:31 pm

Hello,

we have an similar problem and no way runs as described before.

We use Raspberry Pi4 1GB RAM with WTware current version 5.8.88 and tried to connect 2 equal monitors (iiyama 27" ProLite XB2783HSU) via HDMI connector. Only 1 monitor (HDMI:0) shows picture, second monitor (HDMI:1) has a signal but shows nothing.

In Raspbian both monitors shows pictures.

The steps before my post we have done but no success. We tried different resolutions and connectors, the problem still resits.
Can anyone help us please?

Re: Cant set dual 4k monitors Raspberry Pi 4

by cwt » Fri Dec 06, 2019 7:47 pm

ysammy8 wrote: Mon Dec 02, 2019 1:05 pm Hi cwt

What model monitor do you use?
I use DELL U2415 monitors with direct HDMI connections.

Re: Cant set dual 4k monitors Raspberry Pi 4

by ysammy8 » Mon Dec 02, 2019 1:05 pm

Hi cwt

What model monitor do you use?

Re: Cant set dual 4k monitors Raspberry Pi 4

by cwt » Wed Oct 16, 2019 11:13 am

I found a solution for my problem.

Added this entry within WTWARE config menu to my Raspberry config.txt:

Code: Select all

core_freq_min=500
Save the file and reboot. When the login to RDP window appears both monitors are used correctly.

Re: Cant set dual 4k monitors Raspberry Pi 4

by akatik » Wed Aug 21, 2019 1:37 pm

The same question: do these two monitors run in Raspbian? If so, send me your config.txt from Raspbian SD.

Also, run in Raspbian command line:

dmesg > /tmp/dmesg.txt

and send me file /tmp/dmesg.txt

Re: Cant set dual 4k monitors Raspberry Pi 4

by cwt » Wed Aug 21, 2019 9:44 am

I have a similar problem with 2x DELL 24" monitors running at 1920x1200px. Only one monitor shows a picture, the second one has a signal (backlight is enabled and the status LED is "white") but shows nothing.

Raspberry Pi4B, 1GB RAM

RPi config entry:

[HDMI:0]
hdmi_group=2
hdmi_mode=69
[HDMI:1]
hdmi_group=2
hdmi_mode=69

Re: Cant set dual 4k monitors Raspberry Pi 4

by jeremy » Sat Aug 17, 2019 6:28 pm

Log sent.

Re: Cant set dual 4k monitors Raspberry Pi 4

by akatik » Sat Aug 17, 2019 10:13 am

Hello,Send me your terminal log to support@wtware.com
Here's the manual about making logs: http://wtware.com/logs.html

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