Problem with capacitive TFT

EL Wire/Tape/Panels, LEDs, pixels and strips, LCDs and TFTs, etc products from Adafruit

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linny
 
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Joined: Sat Aug 23, 2014 2:03 am

Problem with capacitive TFT

Post by linny »

Hi

I wonder if my capacitive TFT is bad. It did work fine for a couple days, but now, I only have a white screen.

I thought I did an upgrade that broke the config so I reinstall from scratch and I still have nothing display on the screen.

When I look at dmesg, The screen is detected properly.

I just don't know where to go from here


[ 5.089524] Adafruit Industries' Raspberry Pi PWM driver v1.0
[ 9.425923] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ 9.881161] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ 15.781867] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
[ 19.073565] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
[ 20.603798] smsc95xx 1-1.1:1.0 eth0: link up, 100Mbps, full-duplex, lpa 0xCDE1
[ 23.361247] Adding 102396k swap on /var/swap. Priority:-1 extents:1 across:102396k SSFS
[ 58.620279] bcm2708_spi bcm2708_spi.0: DMA channel 4 at address 0xf2007400 with irq 20
[ 58.620316] bcm2708_spi bcm2708_spi.0: DMA channel 5 at address 0xf2007500 with irq 21
[ 58.623469] bcm2708_spi bcm2708_spi.0: SPI Controller at 0x20204000 (irq 80)
[ 58.623501] bcm2708_spi bcm2708_spi.0: SPI Controller running in dma mode
[ 58.698001] bcm2708_i2c_init_pinmode(0,0)
[ 58.698032] bcm2708_i2c_init_pinmode(0,1)
[ 58.702318] bcm2708_i2c bcm2708_i2c.0: BSC0 Controller at 0x20205000 (irq 79) (baudrate 100000)
[ 58.702474] bcm2708_i2c_init_pinmode(1,2)
[ 58.702492] bcm2708_i2c_init_pinmode(1,3)
[ 58.703100] bcm2708_i2c bcm2708_i2c.1: BSC1 Controller at 0x20804000 (irq 79) (baudrate 100000)
[ 58.810886] fbtft_device: SPI devices registered:
[ 58.810926] fbtft_device: 'fb' Platform devices registered:
[ 58.810951] fbtft_device: bcm2708_fb id=-1 pdata? no
[ 58.810984] fbtft_device: I2C devices registered:
[ 58.811000] fbtft_device: i2c-0 addr 48903 IRQ 0
[ 58.811013] fbtft_device: i2c-1 addr 48903 IRQ 1
[ 58.891469] fbtft_device: GPIOS used by 'adafruitct28':
[ 58.891502] fbtft_device: 'dc' = GPIO25
[ 58.891514] fbtft_device: SPI devices registered:
[ 58.891528] fbtft_device: fb_ili9340 spi0.0 16000kHz 8 bits mode=0x00
[ 58.891538] fbtft_device: I2C devices registered:
[ 58.891550] fbtft_device: i2c-0 addr 48903 IRQ 0
[ 58.891563] fbtft_device: i2c-1 addr 48903 IRQ 1
[ 58.891575] fbtft_device: ft6x06_ts 1-0038 addr 56 IRQ 0
[ 58.988971] input: ft6x06_ts as /devices/virtual/input/input0
[ 59.148560] i2c-core: driver [ft6x06_ts] using legacy suspend method
[ 59.148587] i2c-core: driver [ft6x06_ts] using legacy resume method
[ 59.370959] graphics fb1: fb_ili9340 frame buffer, 320x240, 150 KiB video memory, 4 KiB DMA buffer memory, fps=20, spi0.0 at 16 MHz

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adafruit_support_rick
 
Posts: 35092
Joined: Tue Mar 15, 2011 11:42 am

Re: Problem with capacitive TFT

Post by adafruit_support_rick »

Please post clear, detailed pictures of both sides of the PiTFT.

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linny
 
Posts: 2
Joined: Sat Aug 23, 2014 2:03 am

Re: Problem with capacitive TFT

Post by linny »

I include both side of the TFT. Not easy with the light to take a picture.
Has to reduce them to fit 1M in size

Thank
DSC_0069_resize.jpg
DSC_0069_resize.jpg (841.72 KiB) Viewed 488 times
DSC_0068_resize.jpg
DSC_0068_resize.jpg (928.6 KiB) Viewed 488 times

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adafruit_support_rick
 
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Joined: Tue Mar 15, 2011 11:42 am

Re: Problem with capacitive TFT

Post by adafruit_support_rick »

It looks OK. Please email [email protected] with a link to this thread for a replacement PiTFT

ordenrahl
 
Posts: 35
Joined: Fri Dec 20, 2013 11:08 pm

Re: Problem with capacitive TFT

Post by ordenrahl »

Aloha,

I'm also having this same problem with a resistive touch screen. The screen would go white when I turned on my Pi. I tried the "Easy Install" instructions here: https://learn.adafruit.com/adafruit-pit ... sy-install as well as starting fresh with the "Ready to go image" located on the same page. I also tested all of my solder connections with my multimeter and the connections sound good.

I've included two photographs of my screen as requested in the previous post:
Image
Image

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adafruit_support_rick
 
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Joined: Tue Mar 15, 2011 11:42 am

Re: Problem with capacitive TFT

Post by adafruit_support_rick »

That all looks good. Can you post the output from dmesg?

ordenrahl
 
Posts: 35
Joined: Fri Dec 20, 2013 11:08 pm

Re: Problem with capacitive TFT

Post by ordenrahl »

Hi, thank you for taking a look at this. Last night when attempting to get the requested info from my pi I hooked in a HDMI cable and the TFT started correctly. It seems to be running fine now and no longer needs the HDMI plugged in. I'll keep an eye on it if it acts up again I'll post some more info.

Thanks!

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