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+--- Thread: LCD turns white during gameplay (/showthread.php?tid=4574)
LCD turns white during gameplay - ncv - 02-23-2018
Hello! I just built a Freeplay Zero. When I play any game for 20-30 minutes, the screen inevitably turns white, even though I still hear sound and buttons still work. Exiting the game does not fix the screen, only powering off does (the screen will still be white during the shutoff script, but not after the system reboots).
Things I've tried:
- Resoldering the LCD-related GPIO pins
- Reconnecting the LCD display
- Adding a heatsink
- Disabling onboard wifi & bluetooth
Has anybody else had this problem? Is there something else I can try? Thanks!
EDIT: This happens with multiple games for multiple systems, including both 8 and 16 bit systems
RE: LCD turns white during gameplay - Flavor - 02-24-2018
This is a weird one that I haven't heard before, so let me get it straight (please correct me if I'm wrong)...
1) You play for 20-30min.
2) The screen goes pure white (like when you're first turning on the Freeplay Zero).
3) You turn the Freeplay Zero off.
4) You instantly turn the Freeplay Zero back on, and then it works just fine for another 20min or so???
If so, I really don't think it's a software problem. You are right to resolder, as that could cause this problem. The fact that it works for a while does seem to suggest heat, but I don't know if I believe that it would be.
Are you 100% sure that your LCD ribbon cable is fully locked into place?
This could be an issue with the LCD itself.
Have you tried to boot the machine up and just leave it for an hour or so (untouched)? Does it go white then?
RE: LCD turns white during gameplay - ncv - 02-24-2018
Yup, that's correct.
I tried a new Pi Zero this afternoon, and reconnected the ribbon cable again. Then, I booted it up into a GBA game and left it untouched for a while. It white-screened on it's own, still heard the sound and everything as usual
RE: LCD turns white during gameplay - ncv - 02-24-2018
Hmm, it definitely seems heat related. It happened once, I rebooted immediately, and it happened again in roughly ~10 minutes (much faster than usual).
RE: LCD turns white during gameplay - Flavor - 02-24-2018
It’s so odd. I don’t know if that’s a LCD problem or what. That’d be my guess, but it could be the FPZ board.
Can you open a SUPPORT ticket at https://www.freeplaytech.com/contact/
Just copy paste your text from here, please. I can get to it on Monday.
RE: LCD turns white during gameplay - ncv - 02-24-2018
Amazing, thank you! I'll open a ticket tomorrow, have a good weekend
RE: LCD turns white during gameplay - Flavor - 02-24-2018
(02-24-2018, 01:16 PM)ncv Wrote: Hmm, it definitely seems heat related. It happened once, I rebooted immediately, and it happened again in roughly ~10 minutes (much faster than usual).
I missed this info previously. Are you overclocking or anything like that?
RE: LCD turns white during gameplay - ncv - 02-24-2018
Nope, no overclocking. The only boot/config.txt modification I've made is disabling wifi and bluetooth.