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To fix a bug in our app that appeared only on the tvOS 13.4 beta I updated my Apple TV 4K to the tvOS 13.4 beta version.I fixed the bug, but now I have two problems with my Apple TV 4K:1) I cannot connect it to my monitors anymore - the screen stays black, and the following entry is in the tv os console log:Mar 9 16:58:31 Wohnzimmer PineBoard[49] <Error>: Display mode switch unsuccessful: requested: <CADisplayMode 0x281721b60>{ non-virtual 2048 x 1152 60.00 Hz colorMode>RGBFullRange hdrMode>SDR gamut>gamut_P3 aspect>16:9 scale>2 } result: <CADisplayMode 0x281722390>{ non-virtual 0 x 0 0.00 Hz colorMode>auto hdrMode>SDR gamut>gamut_SRGB aspect>other scale>1 }.Mar 9 16:58:31 Wohnzimmer PineBoard[49] <Error>: Failed to establish the preferred mode <<PBSDisplayMode: 0x283107240>{ 2048 x 1152 60.00Hz @2x, 16:9, SDR RGB Low P3 [non-virtual, non-promoted] }>, we'll try again 2 timesMar 9 16:58:31 Wohnzimmer PineBoard[49] <Error>: Establishing mode failure: Error Domain=com.apple.pineboard.displayErrors Code=832002 "Display mode switch unsuccessful: requested: <CADisplayMode 0x281721b60>{ non-virtual 2048 x 1152 60.00 Hz colorMode>RGBFullRange hdrMode>SDR gamut>gamut_P3 aspect>16:9 scale>2 } result: <CADisplayMode 0x281722390>{ non-virtual 0 x 0 0.00 Hz colorMode>auto hdrMode>SDR gamut>gamut_SRGB aspect>other scale>1 }." UserInfo={NSLocalizedFailureReason=Display mode switch unsuccessful: requested: <CADisplayMode 0x281721b60>{ non-virtual 2048 x 1152 60.00 Hz colorMode>RGBFullRange hdrMode>SDR gamut>gamut_P3 aspect>16:9 scale>2 } result: <CADisplayMode 0x281722390>{ non-virtual 0 x 0 0.00 Hz colorMode>auto hdrMode>SDR gamut>gamut_SRGB aspect>other scale>1 }.}I have two different monitors, both show the same problem - only connecting the Apple TV via HDMI to a real TV still works.2) I cannot reset the Apple TV 4K to the tvOS 13.3.1 version anymore. When I try on the device (Reset & restore), it tells me it cannot restore at the moment (probably because the release version is lower than the beta version, which of course is the case ...). When I try via the Apple Configurator 2 by dragging the 13.3.1 ipsw file on it, it shows the dialog to Update or Restore, and on clicking Update it tells me "tvOS cannot be restored - Connect the devices over USB to continue" - but the Apple TV 4K does not have a USB connection anymore, so ?!??Both problems are really annoying, is there any way to fix them?
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by IAmTheEye.
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