Home screen stays blank

[cwalls]

Hello,

Following only happens after a reboot, and also seems to go away after 20min or so by itself. But it is still annoying, and maybe someone knows a quick fix.

So everything seems to work fine, except whenever the home screen should get displayed, the screen just gets blank. The kindle reacts to pressing the power button (Screensaver gets displayed), and also reacts to plugging in the usb cable (the data transfer info gets shown).

The last things I did were to install the jailbreak, reboot, then place KUAL-KDK-2.0.azw2 into the documents folder, reboot. Now even if I remove the azw2 file this problem persists.

Firmware version: 5.13.5

What could be causing this?

[NiLuJe]

If you have a metric shitton of books and collections on the device, the tail end of the UI boot may take a significant amount of time to finish. IIRC, that's visible as a blank homescreen.

[cwalls]

Clearing /mnt/us did not help.

I looked at /var/log/messsages, and saw stuff like

210101:014800 cvm[4871]: W ReadNowDownloadListener:Warning::client data is null hence not processing
210101:014800 cvm[4871]: W ReadNowDownloadListener:Warning::client data is null hence not processing
210101:014800 cvm[4871]: E sql_error::error={"http_status_code":400,"sqlite3_msg":"SQL logic error","sqlite3_code":1}:
210101:014800 cvm[4871]: E rc:lwsf:http_code=400,handler=process_/change,luaerr=LUA_ERRRUN(2):worker script failed: /usr/lib/ccat/change.lua:2181: /usr/lib/ccat/change.lua:2036: {"http_status_code":400,"sqlite3_msg":"SQL logic error","sqlite3_code":1}
210101:014800 scan[6022]: E sps:parserr:reqlen=1179,response={ "Error": "Failed to execute handler: /usr/lib/ccat/change.lua:2181: /usr/lib/ccat/change.lua:2036: {"http_status_code":400,"sqlite3_msg":"SQL logic error","sqlite3_code":1}" } ,retries=2:scanner_post_to_uri failed to parse reponse
210101:014800 cvm[4871]: W ReadNowDownloadListener:Warning::client data is null hence not processing
210101:014800 cvm[4871]: W ReadNowDownloadListener:Warning::client data is null hence not processing

After some research, I thought maybe /var/local/cc.db and /mnt/us/documents are somehow out of sync. So I wiped /var/local, and everything works fine now!