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cutiepi-io / cutiepi-drivers

Drivers for the CutiePi tablet
https://cutiepi.io
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screen stay black after long time(>2h) sleep #8

Open usstlf opened 2 years ago

usstlf commented 2 years ago

screen stay black after long time(>2h) sleep, through vnc the device can still be accessed. still used 5.10, because rebuild of 5.15 not success.

usstlf commented 2 years ago

[ 7.241057] input: Goodix Capacitive TouchScreen as /devices/platform/soc/fe205c00.i2c/i2c-6/6-005d/input/input1 [ 7.336800] ili9881c-dsi fe700000.dsi.0: supply power not found, using dummy regulator [ 7.338503] checking generic (3ea8b000 12c000) vs hw (0 ffffffffffffffff) perhaps because of the dummy regulator is used.

penk commented 2 years ago

5.15 requires a fix in driver, you can:

  1. use dkms https://github.com/cutiepi-io/pi-gen_stage4.5-cutiepi/commit/c5ad8c36cc0744c68ed7ba5dfd75dc0c6a37d744
  2. apply patch manually https://github.com/raspberrypi/linux/pull/4969
  3. sudo rpi-update to get 5.15.32 which has the fix
usstlf commented 2 years ago

I will try the 5.15 again. But this error happened by 5.10. The screen runs well with 5.10. But if the screen is slept for a while(more than 2 hours), it could not wake up again. but through vnc I can still access the device.