Blur / Pixelated Display on Large Image (>5MB for example)

[never12die]

Hi, Martin. I hope you are doing well.

I discovered PhotoCloud few years back, was starting with the unpaid version for quite a long time before I decided to subscribe in Jan this year. That was when I have the idea to DIY my own digital photo frame. Went through and compared a few photo frame apps in the market, I found the PhotoCloud is basically the best in terms of user friendliness and wide range of supported streaming channels. Basically, it suits almost all my needs and idea. Thumbs up for the great works! Especially your continuous tech support and the new features development!

The very first tablet I started with was the retired Lenovo Yoga Smart Tab 10.1 (Android 9). I didn't find much issue with the setup except the system crashed on and off after 4-6 weeks of running the slideshow (image source was the tablet memory, no streaming involved). At the time, I thought it was the Lenovo tablet as the unit equipped with only 2GB of RAM. Last year I bought a Raspberry Pi 4b (RAM = 4GB) and loaded with the custom OS, Lineage OS version 20. Overall the system is responsive but the similar issue happened on this setup, too. Similar to the Lenovo Yoga tablet, after running the slideshow for 2-3 weeks, a message related to network connection appeared on top of PhotoCloud (image source is now from a Synology NAS, act as an DLNA server). The system WiFi connection got turned off and couldn't turn it back on unless I reboot the entire system. The worst scenario is, after several times of reboot (sometimes the system crashed and reboot on its own), the Lineage became totally dead. The only solution is to redo the installation from scratch.

After several incidents, I gave up and left the set for months until recently I noticed there is a new version 21 released (Android 14). I redo the Raspberry Pi 4b but I bumped into a new issue. The slideshow failed to show in proper resolution for images with large size, example 5MB or above. I checked all sort of configuration that I can think of but none of them sort out the issue. The protocol that I am using in the PhotoCloud is DLNA method, the DLNA server is my Synology NAS (home network). I checked the settings on the NAS and confirmed it does not have any restriction on streaming image with large size. (Basically it is the same setting as always). FYI, I have a LG TV which supported DLNA streaming. I tested the slideshow built in the TV, the same large images are showing clearly and perfectly on the LG. BTW, such blur image issue never happened on the previous setup.

What I have done in attempt to fix the 2 issues:

• Tested with Lineage OS version 19, 20 & 21 (Android 12L, 13 & 14 respectively).
• Installed "CPUtemp" to monitor the device temperature (temp never exceed 65 degrees Celsius before the system crashes).
• Both 'cache size' and 'thumbnail cache size' configured to "All available space minus 1GB" (system ROM = 230GB).
• Updated all Google services (Google, Framework Services, Partner Setup, Play Store, etc...).
• Changed to different media (NVMe SSD, USB thumb drive, SDcard).
• Bought a 2nd unit of Raspberry Pi 4b.
• Changed the power adapter of Raspberry Pi 4b (Some said the Raspberry PI is sensitive on power source).

PhotoCloud version v1.15.2

[rajdude]

Are these jpeg or raw (like .dng) files?
I noticed that my raw files were appearing blurry until I updated their DNG previews using Lightroom (but had to change LR's setting to full size embedded jpeg first). All my photos are managed by LR .