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Disable newer audio driver with audio_pwm_mode=1 in config.txt #324

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Disable newer audio driver with audio_pwm_mode=1 in config.txt #324

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3 changes: 2 additions & 1 deletion debian/changelog
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Original file line number Diff line number Diff line change
Expand Up @@ -3,8 +3,9 @@ kano-updater (4.0.0-0) unstable; urgency=low
* Bump version for Kano OS v4.0.0 "Hopper"
* Fix GTK compatibility for Stretch release
* Add support for CKT
* Disable newer audio driver with audio_pwm_mode=1 in config.txt

-- Team Kano <[email protected]> Thu, 23 Apr 2018 11:48:00 +0100
-- Team Kano <[email protected]> Fri, 22 Jun 2018 11:48:00 +0100

kano-updater (3.15.0-0) unstable; urgency=low

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18 changes: 15 additions & 3 deletions kano_updater/scenarios.py
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Expand Up @@ -973,8 +973,9 @@ def beta_3_13_0_to_beta_3_14_0(self):
if c['rpi-chromium-mods-kano'].installed >= '20170809':
install('scratch2')
else:
logger.error("beta_3_13_0_to_beta_3_14_0: wrong version of rpi-chromium-mods-kano installed: {}".format(
c['rpi-chromium-mods-kano'].installed.version)
logger.error(
"beta_3_13_0_to_beta_3_14_0: wrong version of rpi-chromium-mods-kano installed: {}"
.format(c['rpi-chromium-mods-kano'].installed.version)
)
except Exception as e:
logger.error("beta_3_13_0_to_beta_3_14_0: Failed to install scratch2", exception=e)
Expand All @@ -986,4 +987,15 @@ def beta_3_14_1_to_beta_3_15_0(self):
pass

def beta_3_15_0_to_beta_4_0_0(self):
pass
try:
from textwrap import dedent
extra_config = dedent("""
# Disable the new audio pwm driver to avoid the risk of a kernel / firmware crash.
# https://www.raspberrypi.org/forums/viewtopic.php?f=29&t=195178
# https://github.com/raspberrypi/linux/issues/2587
audio_pwm_mode=1
""")
self._add_boot_config_options(extra_config)

except Exception as e:
logger.error("Failed to update config: {}".format(e))