# The display does not work I2C help! **URL:** \ **Category:** Help\ **Created:** [May 20, 2023, 10:27pm UTC](https://community.volumio.com/t/the-display-does-not-work-i2c-help/61529 "2023-05-20T22:27:52Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![lukas22](https://community.volumio.com/user_avatar/community.volumio.com/lukas22/32/17865_2.png) [@lukas22](https://community.volumio.com/u/lukas22)\ **Post date:** [May 20, 2023, 10:27pm UTC](https://community.volumio.com/t/the-display-does-not-work-i2c-help/61529/1 "2023-05-20T22:27:52Z")
Hi guys, could use some help… I have a raspberry with PIFI DAC + 2.0 and I have a 1.9 oled that works perfectly model: [0.96 pollici OLED SSD1306 bianco/blu/giallo 128X64 IIC I2C modulo Display seriale 12864 scheda schermo LCD per Arduino|display module|oled module128x64 oled - AliExpress](https://it.aliexpress.com/item/32643950109.html?spm=a2g0o.detail.1000060.1.6851570f9Juvij&gps-id=pcDetailBottomMoreThisSeller&scm=1007.13339.291025.0&scm_id=1007.13339.29102) 5.0&scm-url=1007.13339.291025.0&pvid=da7789f6-1b41 -4e35-b7ee-3cf7a8a3fb5d&\_t=gps-id%3ApcDetailBottomMoreThisSeller%2Cscm-url%3A1007.13339.291025.0%2Cpvid%3Ada7789f6-1b41-4e35-b7ee-3cf7a8a3fb5d%2Ctpp\_buckets% 3A668%232846%238111%231996&pdp\_npi=3%40dis%21EUR %211.65%211.53%21%21%21%21%21%40211b5e2416846206734308772e872c%2112000025686777041%21rec%21IT%21725564962&gatewayAdapt=glo2ita and everything works great, since this display is small I wanted to replace it with this: [Modulo Display LCD OLED da 2.4 "2.42 pollici 128x64 SSD1309 12864 interfaccia seriale IIC I2C a 4 Pin per Arduino UNO R3 C51| | - AliExpress](https://it.aliexpress.com/item/1005005241315177.html?spm=a2g0o.productlist.main.31.59e21c51LQDZAo&algo_pvid=8bb128bc-8e5e-44b2-8b7e-d63aa0d9eebd&algo_exp_id=8bb128bc-8e5e-) 44b2-8b7e-d63aa0d9eebd-15&pdp\_npi=3 %40dis%21EUR%2113.25%2110.73%21%21%21%21%21%40214527c616846206622901113d0723%2112000032330939225%21sea%21IT%21725564962&curPageLogUid=1Mf 4OVHlTLSp the model I have is 4 pin, I connected it but it doesn’t turn on, the connection diagram is: ![wiring_i2c](https://community.volumio.com/uploads/default/original/3X/b/1/b1acd07e941fb06fdc17396d81762fc0d4900ca0.png) I respected the connection types on both displays, but the small one works, it’s the 2.4 one, no, I need some help. I installed the native mpd\_oled plugin from volumio , with the small display it works (the one from 2.4 doesn’t work) i also completely uninstalled native mpd\_oled this is installed: > but it still won’t turn on or display anything… I post the photos in ssh ![Senza titolo](https://community.volumio.com/uploads/default/original/3X/a/0/a0fa558f80f15dcd5b81a8634dbdf98b13f5b69d.png) ![2](https://community.volumio.com/uploads/default/original/3X/3/1/3154a60d3e3dfda15050246b2863b4126cac700b.png) ![Immagine WhatsApp 2023-05-21 ore 00.25.25](https://community.volumio.com/uploads/default/original/3X/5/d/5ddf9b1fd7326ca3f8a4a00a2379aab96bfdd3c5.jpeg) ![Immagine WhatsApp 2023-05-21 ore 00.25.37](https://community.volumio.com/uploads/default/original/3X/f/1/f11a72d67981452d64775a6d51717906373028b8.jpeg) ![Immagine WhatsApp 2023-05-2155 ore 00.25.37](https://community.volumio.com/uploads/default/original/3X/7/b/7bddc243d7059025565b05158033fa76c2390df1.jpeg) ---
**Author:** ![Andron66](https://community.volumio.com/user_avatar/community.volumio.com/andron66/32/16872_2.png) [@Andron66](https://community.volumio.com/u/Andron66)\ **Post date:** [May 21, 2023, 1:22am UTC](https://community.volumio.com/t/the-display-does-not-work-i2c-help/61529/2 "2023-05-21T01:22:07Z")
There are 2 diodes on the board. D1 and D2. They need to be closed. ![2023-04-03 19.20.27-2](https://community.volumio.com/uploads/default/original/3X/0/e/0e7453bd572c4d63bc153e16211f12640d87a1a1.jpeg) ![2023-04-06 19.51.04-1](https://community.volumio.com/uploads/default/original/3X/d/f/df892888926db10c57665129fa45e122bc6490e1.jpeg) ---
**Author:** ![lukas22](https://community.volumio.com/user_avatar/community.volumio.com/lukas22/32/17865_2.png) [@lukas22](https://community.volumio.com/u/lukas22)\ **Post date:** [May 21, 2023, 8:35am UTC](https://community.volumio.com/t/the-display-does-not-work-i2c-help/61529/3 "2023-05-21T08:35:03Z")
meanwhile thank you very much… you are great… ![Immagine WhatsApp 2023-05-21 ore 10.33.57](https://community.volumio.com/uploads/default/original/3X/9/7/9735c52a10b26797ed6beda81226fba1720fc800.jpeg) the display is on it works, but the display refresh is very slow when I snap between one song and another the display is still the song does not change in real time also the non-spectrum bars do not move ---
**Author:** ![lukas22](https://community.volumio.com/user_avatar/community.volumio.com/lukas22/32/17865_2.png) [@lukas22](https://community.volumio.com/u/lukas22)\ **Post date:** [May 21, 2023, 8:39am UTC](https://community.volumio.com/t/the-display-does-not-work-i2c-help/61529/4 "2023-05-21T08:39:54Z")
![Immagine 2023-05-21 103926](https://community.volumio.com/uploads/default/original/3X/f/e/feb1f7fcbf7a648b456d8444e7d4a08e4435d87d.png) ---
**Author:** ![Andron66](https://community.volumio.com/user_avatar/community.volumio.com/andron66/32/16872_2.png) [@Andron66](https://community.volumio.com/u/Andron66)\ **Post date:** [May 21, 2023, 9:37am UTC](https://community.volumio.com/t/the-display-does-not-work-i2c-help/61529/5 "2023-05-21T09:37:45Z")
This is not a display problem. This is a plugin problem and I do not know the correct answer. Try to chat in the plugin topic. [https://community.volumio.com/t/plugin-mpd-oled-installation-configuration-plugin/44823](https://community.volumio.com/t/plugin-mpd-oled-installation-configuration-plugin/44823) ---
**Author:** ![Andron66](https://community.volumio.com/user_avatar/community.volumio.com/andron66/32/16872_2.png) [@Andron66](https://community.volumio.com/u/Andron66)\ **Post date:** [May 21, 2023, 9:59am UTC](https://community.volumio.com/t/the-display-does-not-work-i2c-help/61529/6 "2023-05-21T09:59:51Z")
I installed the plugin manually. Its settings are not in the list of plugins. Try to run the configuration via ssh: sudo mpd\_oled\_service\_edit -o 6 -a 3c -b 16 -g 1 -f 40 ---
**Author:** ![lukas22](https://community.volumio.com/user_avatar/community.volumio.com/lukas22/32/17865_2.png) [@lukas22](https://community.volumio.com/u/lukas22)\ **Post date:** [May 21, 2023, 10:35am UTC](https://community.volumio.com/t/the-display-does-not-work-i2c-help/61529/7 "2023-05-21T10:35:31Z")
> [@Andron66](#): > > `sudo mpd_oled_service_editor 6 -a 3c -b 16 -g 1 -f 40` could you write me the procedure for manual installation… ---
**Author:** ![Andron66](https://community.volumio.com/user_avatar/community.volumio.com/andron66/32/16872_2.png) [@Andron66](https://community.volumio.com/u/Andron66)\ **Post date:** [May 21, 2023, 10:46am UTC](https://community.volumio.com/t/the-display-does-not-work-i2c-help/61529/8 "2023-05-21T10:46:25Z")
> ---
**Author:** ![lukas22](https://community.volumio.com/user_avatar/community.volumio.com/lukas22/32/17865_2.png) [@lukas22](https://community.volumio.com/u/lukas22)\ **Post date:** [May 21, 2023, 11:09am UTC](https://community.volumio.com/t/the-display-does-not-work-i2c-help/61529/9 "2023-05-21T11:09:39Z")
> [@Andron66](#): > > 6 -a 3c -b 16 -g 1 -f 40 ![Immagine 2023-05-21 130915](https://community.volumio.com/uploads/default/original/3X/f/7/f7fb40f9fc472d0e3106a1a04d636cee4e618bea.png) ---
**Author:** ![Andron66](https://community.volumio.com/user_avatar/community.volumio.com/andron66/32/16872_2.png) [@Andron66](https://community.volumio.com/u/Andron66)\ **Post date:** [May 21, 2023, 11:24am UTC](https://community.volumio.com/t/the-display-does-not-work-i2c-help/61529/10 "2023-05-21T11:24:25Z")
sudo mpd\_oled\_service\_edit -o 6 -a 3c -b 16 -g 1 -f 40 ---
**Author:** ![lukas22](https://community.volumio.com/user_avatar/community.volumio.com/lukas22/32/17865_2.png) [@lukas22](https://community.volumio.com/u/lukas22)\ **Post date:** [May 21, 2023, 12:20pm UTC](https://community.volumio.com/t/the-display-does-not-work-i2c-help/61529/11 "2023-05-21T12:20:09Z")
the command is gone and the display works but still does not update the refresh remains the same ![Immaginddd](https://community.volumio.com/uploads/default/original/3X/f/a/fa3831b0d054d7ca9ed428742b0d86dd1bf5a4d1.png) and as if it freezes [image] ---
**Author:** ![lukas22](https://community.volumio.com/user_avatar/community.volumio.com/lukas22/32/17865_2.png) [@lukas22](https://community.volumio.com/u/lukas22)\ **Post date:** [May 21, 2023, 12:23pm UTC](https://community.volumio.com/t/the-display-does-not-work-i2c-help/61529/12 "2023-05-21T12:23:17Z")
![Immagine WhatsApp 2023-05-21 ore 14.21.39](https://community.volumio.com/uploads/default/original/3X/d/5/d593bc457667bc6cbeccd31e41c83bbac960af28.jpeg) ---
**Author:** ![lukas22](https://community.volumio.com/user_avatar/community.volumio.com/lukas22/32/17865_2.png) [@lukas22](https://community.volumio.com/u/lukas22)\ **Post date:** [May 21, 2023, 1:26pm UTC](https://community.volumio.com/t/the-display-does-not-work-i2c-help/61529/13 "2023-05-21T13:26:01Z")
thanks for the help this post I hope it will be useful to other people… the problem was Loopback,1 ![Immagine WhatsApp 2023-05-21 ore 15.24.37](https://community.volumio.com/uploads/default/original/3X/d/6/d6217017be3392c7a72fc334b921f1686ac4ce31.jpeg) i started the command from ssh sudo mpd\_oled\_service\_edit -o 6 -a 3c -b 16 -g 1 -f 40 -c alsa,plughw:Loopback,1 after i put it back sudo mpd\_oled\_service\_edit -o 6 -a 3c -b 16 -g 1 -f 40 everything works…!!! ![1](https://community.volumio.com/uploads/default/original/3X/1/5/15f948e38a77e268543c71562d571e442429bfcd.png) ![2](https://community.volumio.com/uploads/default/original/3X/8/3/8395eaaa99e91105da261837954ee5e6c7c2716d.png)