Blank screen with new SD card

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N4LES
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Joined: Sat Dec 28, 2019 2:26 pm

Blank screen with new SD card

Post by N4LES » Mon Feb 03, 2020 5:24 pm

I have 2 Jumbo spots. One works great. I assembled a new one and installed software to new micro SD card. The screen never lights up. If I insert the micro SD card from the working one, the screen works normal. Likewise the micro SD card in the original working one causes nothing on the display.
I have compared settings and cannot find what's missing on the new micro SD card.???

Any ideas?

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YT5HOK
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Re: Blank screen with new SD card

Post by YT5HOK » Tue Feb 04, 2020 9:42 am

As you have made new SD card by flashing latest image to it, as opposed to having old one which is updated/upgraded since, there is one option that is added/changed default: LogoScreensaver=0 under Configuration/Expert/MMDVMHost/OLED.

N4LES
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Re: Blank screen with new SD card

Post by N4LES » Tue Feb 04, 2020 6:33 pm

LogoScreensaver=0 already and nothing. The display never lights up at all.

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YT5HOK
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Re: Blank screen with new SD card

Post by YT5HOK » Tue Feb 04, 2020 6:42 pm

Errrmm... 0 means "disabled", 1 is "enabled", so...

N4LES
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Re: Blank screen with new SD card

Post by N4LES » Tue Feb 04, 2020 9:39 pm

Wouldn't I want the screen saver to be disabled?

N4LES
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Re: Blank screen with new SD card

Post by N4LES » Tue Feb 04, 2020 10:29 pm

I was able to get it working.
1) I recreated the micro sd card from scratch with no change.
2) I restored a backup of the one that was working to the new micro sd card and now it works.
It would be nice to know what was different but I was not able to find the root cause even after comparing settings side by side.
The LogoScreensaver=0 for both and both have a normal display now.

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YT5HOK
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Re: Blank screen with new SD card

Post by YT5HOK » Wed Feb 05, 2020 10:24 am

N4LES wrote:
Tue Feb 04, 2020 10:29 pm
...
The LogoScreensaver=0 for both and both have a normal display now.
I don't know what you did, but you are wrong.

LogoScreensaver=0 means blank screen and LogoScreensaver=1 activates scrolling logo.

Traffic info is not affected in either way, it is shown on screen when present.

M1DNS
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Re: Blank screen with new SD card

Post by M1DNS » Wed Feb 05, 2020 10:28 am

Logoscreensaver =0 don't show the screen saver. Keep the screen blank.

Logoscreensaver =1 show the screen saver, ie scrolling text across the screen when idle.

Sent from my SM-G935F using Tapatalk

Andrew M1DNS.
Pi-star Admin Team.

KE7FNS
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Re: Blank screen with new SD card

Post by KE7FNS » Thu Feb 06, 2020 9:40 pm

N4LES wrote:
Tue Feb 04, 2020 10:29 pm
It would be nice to know what was different but I was not able to find the root cause even after comparing settings side by side.
Since you say that the entire display was blank at all times, it seems highly plausible that you simply didn't have OLED selected in the main MMVDM display configuration.

The backup you restored obviously had that correctly set.
All views, comments, posts and opinions shared are entirely my own.

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