Bug ID 1195297
Summary fbtft spi screens no longer functions properly.
Classification openSUSE
Product openSUSE Tumbleweed
Version Current
Hardware aarch64
OS openSUSE Tumbleweed
Status NEW
Severity Normal
Priority P5 - None
Component Kernel
Assignee kernel-bugs@opensuse.org
Reporter simonf.lees@suse.com
QA Contact qa-bugs@suse.de
Found By ---
Blocker ---

Connected to the raspberry pi on my Robot I have a small 3.2" display
[1] (or a clone / older version) it connects via SPI on the raspberry
pi's GPIO header. In the past i've had it working with the overlay at
[2] and the fbtft driver.

This kinda setup is pretty common in the embedded / hobbyist world, I
don't use a desktop or anything just simple status apps using the
framebuffer directly on the other hand it wouldn't be the end of the
world if I moved to Qt.

Today I finally got a chance to update and as of now I no longer have an
/dev/fb1 (/dev/fb0 is hdmi) is that expected with my current setup? I
had other issues with the update and had to grab a fresh image and re
add my overlay and raspbery pi config so there is also a chance I missed
something setting it up again. I've put some dmesg output from the older
system the new system shows nothing and below that is an fbi command I
use for testing.

Log from previously working system:
[   59.468595] fbtft: module is from the staging directory, the quality
is unknown, you have been warned.
[   59.714749] fb_ili9340: module is from the staging directory, the
quality is unknown, you have been warned.
[   59.716023] fb_ili9340 spi0.0: fbtft_property_value: buswidth = 8
[   59.716049] fb_ili9340 spi0.0: fbtft_property_value: debug = 0
[   59.716063] fb_ili9340 spi0.0: fbtft_property_value: rotate = 270
[   59.716079] fb_ili9340 spi0.0: fbtft_property_value: fps = 25
[   59.716093] fb_ili9340 spi0.0: fbtft_property_value: txbuflen = 32768
[   61.352903] graphics fb1: fb_ili9340 frame buffer, 320x240, 150 KiB
video memory, 32 KiB buffer memory, fps=25, spi0.0 at 16 MHz

Test command:
sudo fbi -T 13 -d /dev/fb1 --noverbose 1-110313112A3.jpg


1. https://www.waveshare.com/wiki/3.2inch_RPi_LCD_(B)
2. https://github.com/swkim01/waveshare-dtoverlays


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