I’ve successfully installed Lakka with the FB Alpha rom set and everything seems to be working fine, except I can’t get the thumbnails to display. I downloaded thumbnails using the Online Updater to get FB Alpha thumbnails. After successful download I got a directory “/storage/thumbnails/FB Alpha”. Still I got no thumbnails. I’ve googled around and found something about directory names having to match. I believe the actual name of the playlist is named “FB Alpha - Arcade Games”, so I also tried renaming the directory inside thumbnails to match that. Still no success. I’ve also verified that the lpl file also has the name “FB Alpha - Arcade Games.lpl” inside it (after the crc). I’ve also noticed a slight discrepancy in the naming scheme which may be related. E.g. a game can be named “Some Name / Some Subtitle”, while the artwork file would have a matching name like “Some Name _ Some Subtitle” (replacing slash with underscore). I just took a short stab at getting rid of the slash in the name in the lpl file to match the artwork file but did not notice any improvements. Any ideas?
thumbnails location should be “< whatever_thumbnails_folder_you_set >\FB Alpha - Arcade Games”, then inside this folder is Named_Boxarts, Named_Snaps, Named_Titles
the filename should be whatever it is labeled in the playlist, so if label is Art of Fighting 2 / Ryuuko no Ken 2 (NGH-056) then the filename should be: Art of Fighting 2 _ Ryuuko no Ken 2 (NGH-056).png
only rename the the character to “_” if its any of the following:
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use markwkidd’s playlist buddy if your using windows-these makes life easier
Thanks, this is pretty much exactly how things are, after I renamed “FB Alpha” to “FB Alpha - Arcade Games” inside thumbnails. FWIW, only Named_Boxarts exists, but even when I select boxarts in setup it does not work. No art appears. Annoying!
I went through everything again with a little more patience. With renaming as described and some patience, box arts did indeed start appearing, although very slowly. I guess some process in the background is working through the huge list of games. Thanks.
it can even be “< whatever_thumbnails_folder_you_set ><whatever_the_name_of_your_lpl_file>” if your are using custom playlusts
so if you have custom playlist named FBAlpha - CPS2.lpl, then your folder name should be “< whatever_thumbnails_folder_you_set >\ FBAlpha - CPS2”
Hi, I’m having same situation or kind of…
My retroarch show ok NES and FBA thumbs but mame didn’t work. I spent a lot of time searching about this issue but nothing found and it’s driving me crazy…
Also tried to debug retroarch binary but no error given 
so here is a sample of my Mame playlist:
"path": "/storage/roms/Romset_0.78_lr-mame2003/005.zip",
"label": "005",
"core_path": "/tmp/cores/mame2003_plus_libretro.so",
"core_name": "mame2003_plus",
"crc32": "2bbd8481|crc",
"db_name": "MAME 2003-Plus.lpl"
},
{
"path": "/storage/roms/Romset_0.78_lr-mame2003/yard.zip",
"label": "10 Yard Fight (Japan)",
"core_path": "/tmp/cores/mame2003_plus_libretro.so",
"core_name": "mame2003_plus",
"crc32": "5f1653d3|crc",
"db_name": "MAME 2003-Plus.lpl"
},
{
"path": "/storage/roms/Romset_0.78_lr-mame2003/vsyard2.zip",
"label": "10 Yard Fight (Vs. version Japan, set 2)",
"core_path": "/tmp/cores/mame2003_plus_libretro.so",
"core_name": "mame2003_plus",
"crc32": "87fc935d|crc",
here is thumbnail dir:
Lakka:~/thumbnails # ls -l
total 4
drwxr-x--- 5 root root 1024 Aug 2 15:27 DOOM
drwxr-x--- 5 root root 1024 Aug 2 20:31 FB Alpha - Arcade Games
drwxr-x--- 5 root root 1024 Aug 3 01:50 MAME 2003-Plus
drwxr-x--- 5 root root 1024 Aug 2 15:27 Nintendo - Nintendo Entertainment System
Lakka:~/thumbnails # ls MAME\ 2003-Plus/Named_Snaps/ -l |more
total 76261
-rw-r--r-- 1 root root 12075 Jan 18 2019 '88 Games.png
-rw-r--r-- 1 root root 4172 Jan 18 2019 '99_ The Last War (alternate).png
-rw-r--r-- 1 root root 3306 Jan 18 2019 '99_ The Last War.png
-rw-r--r-- 1 root root 2094 Jan 18 2019 005.png
-rw-r--r-- 1 root root 3717 Jan 18 2019 10 Yard Fight (Japan).png
-rw-r--r-- 1 root root 3549 Jan 18 2019 10 Yard Fight (Vs. version Japan, set 2).png
-rw-r--r-- 1 root root 3591 Jan 18 2019 10 Yard Fight (Vs. version World, 11-05-84).png
-rw-r--r-- 1 root root 32288 Jan 18 2019 1941 - Counter Attack (Japan).png
-rw-r--r-- 1 root root 27630 Jan 18 2019 1941 - Counter Attack (World).png
I think I tried everything possible, naming, permissions, different thumbnails versions…
As a note, online update didn’t work either…
Anyone had some advice?
Thanks to all.
Hi @jducifuentes.
All MAME thumbnails go in thumbnails/MAME (no year).
This is a change that was implemented a while ago and is not documented anywhere, as far as I can tell. I was fortunate to get this tip on Discord.
My f*** godness, you are the best! Confirmed it’s working. Developers please write about in documentation.
Thanks!!
Wait…so you have to name each individual thumbnail file name to match the title listed in the lpl for thousands of games? None of mine show up because none of the names match, for any emulator. Thanks for the mame tip. That is clutch right there. Who decided to name the titles of the thumbnails into a name that isn’t even recognized by the typical rom dump sets?
Agreeing there, i noticed this very bad design choice some time ago, the thumbnail names should be based on filename, not on playlist name : for no-intro/redump based roms it wouldn’t change a shit, and for arcade based romsets it would make things so much better
I think part of it is people are getting roms from wherever they can and find poor or unreliable sources. Part of the problem stemming from forums trying to keep people from talking about where to find trustworthy and verified ROMS. I have to manually scan and then add my thumbnails since some of them are not in the database for thumbnails. PSP Minis for instance I dont think have a thumbnail collection for auto updating.
For example some rom sets are scattered around online and dont have labels to which version of MAME they are from. I manually scanned those two and just added a image to Named_Boxarts with its png format image. You could also dump them in Named_Snaps or Named_Titles. I wish there was documentation was up to date and more detailed. Also some games have a label name which is different from its title name and is used for its thumbnail name association instead.
Imagine having to do that for huge rom sets. I sometimes have fun with thumbnails.
File path: thumbnails/FBNeo - Arcade Games/Named_Boxarts
mslug = Metal Slug.
PS. Artist is Ataruman
A short video tutorial on manually adding thumbnails.
Results of adding thumbnails shown on a Raspberry pi running Lakka os.