Same subject, different person... I've tried installing from the Adafruit images, Raspbian Vanilla and the easy install script, and Raspbian Vanilla manual steps. All have failed to produce a working fb1 output. Granted, I get the white to black and black to white screen in certain steps; I just can't seem to get the thing do display on anything but the HDMI. I also noticed that the step stating to remove 99-fbturbo.conf on Raspbian versions newer than September 2013 prevented the HDMI from displaying the GUI after startx. Once I added the 99-fbturbo.conf back, I was at least able to get X up on the HDMI monitor. Still no GUI or terminal to display on the tft. Oddly enough, the provided image from Adafruit didn't have the spi-bcm2708 or fbtft_device modules installed. The manual instructions also make mention of using 'stmpe_ts' instead of 'stmpe-ts', which I believe it should be the hyphenated module? Something makes me feel there are a few small missed steps here, or this LCD is defective. I'd like to rule out the solders, since this was a pre-built purchase. Your solders are quite pretty.
Just to check what command or program are you running to get output on the display? Lets check it's setting the appropriate framebuffer environment variable, since it can be different depending on the program and how it displays graphics.
tdicola wrote:Just to check what command or program are you running to get output on the display? Lets check it's setting the appropriate framebuffer environment variable, since it can be different depending on the program and how it displays graphics.
Does x windows display on the PiTFT after about a minute?
Negative, it does not.
Yes, that is the page and those are the command parameters I used, from the instructions. The tft screen goes black, and nothing more. It does blink a bit on mouse movement, but not image. Possible resolution or rate issue? Out of curiosity, I even tried it was fb0, just to make sure it wasn't a weird enumeration swap issue, but with the screen going from white to black, it seems to be fb1 is right.
Side-note: This was tested on two different Pi's so, that isn't it.
Thanks for checking with the easy install image. That's really odd that you're still not getting anything. One last thing to check is the power supply and any other devices attached to the Pi. Are you using an external 5V supply or a computer/laptop USB port to power the Pi? If you're using a computer USB port switch to an external supply since most USB ports can't supply enough current to power the Pi & PiTFT at that same time.
Also are there any other devices connected to the Pi's USB ports, GPIO pins, etc? If so can you try with everything disconnected except the PiTFT? Thanks!
We thought power too, so we used a 1A wall plug
wireless usb keyboard
wireless wifi (but happens when the wifi adapter isn't plugged in either)
Nothing else connected
I'll try with everything unplugged, but that would make it pretty useless to not have keyboard. Guess I could use ssh over wired...
Thanks for checking, it sounds like power isn't an issue. Yeah I just mention removing the connected devices to see if perhaps there were too many devices and too little power supply, but a 1A supply with just a wifi dongle and wireless keyboard should be OK. At this point I think it's worth replacing the PiTFT. Out of the box it should work with the ready to go PiTFT image. Since it doesn't look like a power issue I suspect there might be something wrong with this board. Send a mail to [email protected] and point them at this thread to get the process going for replacing the board. Thanks for the patience troubleshooting it, and hopefully we can get a good one to you soon.
