Environment
- Build: p3i T4c
- Device: Ugoos AM6B+ (two units, used for comparison)
- Install method: dirty upgrade from T4b, followed by full Settings/System/CoreELEC reset to defaults on both units
- AVR: Denon AVC-X3800H
- HDMI Control: confirmed On
- HDMI Pass Through: confirmed On
- ARC: confirmed On
- Chain A: Ugoos AM6B+ → TV (direct)
- Chain B: Ugoos AM6B+ AND Apple TV → Denon AVC-X3800H → TV (both source devices on the same AVR/TV pair)
Summary
TV remote power-on wakes the Ugoos AM6B+ correctly when it's wired directly into the TV. On the exact same box wired through the Denon AVR instead, TV remote power-on does not wake it. On that same AVR/TV chain, an Apple TV wakes from full standby via the TV remote without issue — ruling out the AVR, wiring, and TV as the cause. The problem is isolated specifically to the Ugoos's wake behavior when the wake command is relayed through the AVR rather than sent directly by the TV.
Steps to reproduce
- Put the TV, AVR, and Ugoos into standby (confirmed reproducible by powering off the source device via its own remote, which cascades AVR and TV to standby).
- Press power on the TV remote.
- Direct-to-TV Ugoos: wakes correctly.
- Same Ugoos through the AVR: does not wake; TV and AVR wake, box stays in standby.
- Apple TV in the same AVR position, same test: wakes correctly.
CEC Adapter settings on the Ugoos
(Settings → System → Input → Peripherals → CEC Adapter — all confirmed enabled)
- Switch source to this device on activity: ON
- Wake-Up by auto power on: ON
- Wake-Up by streaming path/routing change: ON
- Wake-Up by active route: ON
Suspected cause
Likely the T4c kernel CEC change described in the release notes:
"the wake-configuration is seeded from the bootloader again instead of 'everything on'"
Specifically: the box appears to wake correctly on a direct Image-View-On command from the TV, but not on an AVR-relayed Routing-Change/Active-Source broadcast while suspended — consistent with the bootloader-seeded wake config being scoped too narrowly in T4c. Since a second device (Apple TV) wakes correctly on the identical AVR/TV chain, the AVR is not the source of the problem; the AM6B+'s wake config specifically appears to be missing the relayed opcode while it retains the direct one.
What's been ruled out
- AVR settings/config — Apple TV wakes correctly through the same AVR under the same settings.
- Wiring/topology as a general issue — the same Ugoos wakes fine when wired directly to the TV.
- Kodi Peripherals settings — all relevant wake toggles enabled; no effect.
- Settings.xml carryover — full reset performed after the T4c update.
Environment
Summary
TV remote power-on wakes the Ugoos AM6B+ correctly when it's wired directly into the TV. On the exact same box wired through the Denon AVR instead, TV remote power-on does not wake it. On that same AVR/TV chain, an Apple TV wakes from full standby via the TV remote without issue — ruling out the AVR, wiring, and TV as the cause. The problem is isolated specifically to the Ugoos's wake behavior when the wake command is relayed through the AVR rather than sent directly by the TV.
Steps to reproduce
CEC Adapter settings on the Ugoos
(Settings → System → Input → Peripherals → CEC Adapter — all confirmed enabled)
Suspected cause
Likely the T4c kernel CEC change described in the release notes:
Specifically: the box appears to wake correctly on a direct Image-View-On command from the TV, but not on an AVR-relayed Routing-Change/Active-Source broadcast while suspended — consistent with the bootloader-seeded wake config being scoped too narrowly in T4c. Since a second device (Apple TV) wakes correctly on the identical AVR/TV chain, the AVR is not the source of the problem; the AM6B+'s wake config specifically appears to be missing the relayed opcode while it retains the direct one.
What's been ruled out