Fix `OSError` in `ssd1327` driver

[ezio-melotti]

I've seen the display crashing with the following error:

Apr 12 07:42:08 twrpi1 python[8301]: Traceback (most recent call last):
Apr 12 07:42:08 twrpi1 python[8301]:   File "<frozen runpy>", line 198, in _run_module_as_main
Apr 12 07:42:08 twrpi1 python[8301]:   File "<frozen runpy>", line 88, in _run_code
Apr 12 07:42:08 twrpi1 python[8301]:   File "/home/pi/simoc-sam/src/simoc_sam/displays/ssd1327.py", line 87, in <module>
Apr 12 07:42:08 twrpi1 python[8301]:     asyncio.run(main())
Apr 12 07:42:08 twrpi1 python[8301]:     ~~~~~~~~~~~^^^^^^^^
Apr 12 07:42:08 twrpi1 python[8301]:   File "/usr/lib/python3.13/asyncio/runners.py", line 195, in run
Apr 12 07:42:08 twrpi1 python[8301]:     return runner.run(main)
Apr 12 07:42:08 twrpi1 python[8301]:            ~~~~~~~~~~^^^^^^
Apr 12 07:42:08 twrpi1 python[8301]:   File "/usr/lib/python3.13/asyncio/runners.py", line 118, in run
Apr 12 07:42:08 twrpi1 python[8301]:     return self._loop.run_until_complete(task)
Apr 12 07:42:08 twrpi1 python[8301]:            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
Apr 12 07:42:08 twrpi1 python[8301]:   File "/usr/lib/python3.13/asyncio/base_events.py", line 725, in run_until_complete
Apr 12 07:42:08 twrpi1 python[8301]:     return future.result()
Apr 12 07:42:08 twrpi1 python[8301]:            ~~~~~~~~~~~~~^^
Apr 12 07:42:08 twrpi1 python[8301]:   File "/home/pi/simoc-sam/src/simoc_sam/displays/ssd1327.py", line 80, in main
Apr 12 07:42:08 twrpi1 python[8301]:     await asyncio.gather(
Apr 12 07:42:08 twrpi1 python[8301]:     ...<2 lines>...
Apr 12 07:42:08 twrpi1 python[8301]:     )
Apr 12 07:42:08 twrpi1 python[8301]:   File "/home/pi/simoc-sam/src/simoc_sam/displays/ssd1327.py", line 50, in update_display
Apr 12 07:42:08 twrpi1 python[8301]:     display.refresh()
Apr 12 07:42:08 twrpi1 python[8301]:     ~~~~~~~~~~~~~~~^^
Apr 12 07:42:08 twrpi1 python[8301]:   File "/home/pi/simoc-sam/venv/lib/python3.13/site-packages/busdisplay/__init__.py", line 299, in refresh
Apr 12 07:42:08 twrpi1 python[8301]:     self._refresh_display()
Apr 12 07:42:08 twrpi1 python[8301]:     ~~~~~~~~~~~~~~~~~~~~~^^
Apr 12 07:42:08 twrpi1 python[8301]:   File "/home/pi/simoc-sam/venv/lib/python3.13/site-packages/busdisplay/__init__.py", line 308, in _refresh_display
Apr 12 07:42:08 twrpi1 python[8301]:     self._refresh_area(area)
Apr 12 07:42:08 twrpi1 python[8301]:     ~~~~~~~~~~~~~~~~~~^^^^^^
Apr 12 07:42:08 twrpi1 python[8301]:   File "/home/pi/simoc-sam/venv/lib/python3.13/site-packages/busdisplay/__init__.py", line 389, in _refresh_area
Apr 12 07:42:08 twrpi1 python[8301]:     self._core.set_region_to_update(subrectangle)
Apr 12 07:42:08 twrpi1 python[8301]:     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^
Apr 12 07:42:08 twrpi1 python[8301]:   File "/home/pi/simoc-sam/venv/lib/python3.13/site-packages/displayio/_displaycore.py", line 320, in set_region_to_update
Apr 12 07:42:08 twrpi1 python[8301]:     self.send(data_type, chip_select, data)
Apr 12 07:42:08 twrpi1 python[8301]:     ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Apr 12 07:42:08 twrpi1 python[8301]:   File "/home/pi/simoc-sam/venv/lib/python3.13/site-packages/displayio/_displaycore.py", line 373, in send
Apr 12 07:42:08 twrpi1 python[8301]:     self._send(data_type, chip_select, data)
Apr 12 07:42:08 twrpi1 python[8301]:     ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Apr 12 07:42:08 twrpi1 python[8301]:   File "/home/pi/simoc-sam/venv/lib/python3.13/site-packages/i2cdisplaybus/__init__.py", line 126, in _send
Apr 12 07:42:08 twrpi1 python[8301]:     raise error
Apr 12 07:42:08 twrpi1 python[8301]:   File "/home/pi/simoc-sam/venv/lib/python3.13/site-packages/i2cdisplaybus/__init__.py", line 120, in _send
Apr 12 07:42:08 twrpi1 python[8301]:     self._i2c.writeto(self._dev_addr, buffer=command_bytes)
Apr 12 07:42:08 twrpi1 python[8301]:     ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Apr 12 07:42:08 twrpi1 python[8301]:   File "/home/pi/simoc-sam/venv/lib/python3.13/site-packages/busio.py", line 223, in writeto
Apr 12 07:42:08 twrpi1 python[8301]:     return self._i2c.writeto(address, buffer, stop=True)
Apr 12 07:42:08 twrpi1 python[8301]:            ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Apr 12 07:42:08 twrpi1 python[8301]:   File "/home/pi/simoc-sam/venv/lib/python3.13/site-packages/adafruit_blinka/microcontroller/generic_linux/i2c.py", line 68, in writeto
Apr 12 07:42:08 twrpi1 python[8301]:     self._i2c_bus.write_bytes(address, buffer[start:end])
Apr 12 07:42:08 twrpi1 python[8301]:     ~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Apr 12 07:42:08 twrpi1 python[8301]:   File "/home/pi/simoc-sam/venv/lib/python3.13/site-packages/Adafruit_PureIO/smbus.py", line 303, in write_bytes
Apr 12 07:42:08 twrpi1 python[8301]:     self._device.write(buf)
Apr 12 07:42:08 twrpi1 python[8301]:     ~~~~~~~~~~~~~~~~~~^^^^^
Apr 12 07:42:08 twrpi1 python[8301]: OSError: [Errno 5] Input/output error

A simple try/except around the display.refresh() should fix the issue.

[ezio-melotti]

A simple try/except around the display.refresh() should fix the issue.

When this happens, the screen gets stuck, so it's not enough to catch and ignore the error.
Trying to reinitialize the display seems to have issues as well, so for now letting the process crash and systemd restart it will have to do.