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<div class="moz-cite-prefix">On 12/14/21 11:57 AM, James Abernathy
wrote:<br>
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<blockquote type="cite"
cite="mid:CANFv2E=MnCngtN51bZfuQM3jY+=U+m-rDPaGssJNwOHD_5VOEg@mail.gmail.com">
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<div> I have tried to simplify the key part of the command
from this:</div>
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<div>QT_QPA_EGLFS_ALWAYS_SET_MODE="1" QT_QPA_PLATFORM=eglfs
QT_QPA_EGLFS_DEBUG=1 QT_LOGGING_RULES=qt.qpa.*=true
QT_QPA_EGLFS_KMS_CONFIG=/home/pi/pi_mythfrontend.json
mythfrontend $ARGUMENTS<br>
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<div>to this:</div>
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<div>QT_QPA_EGLFS_ALWAYS_SET_MODE="1" QT_QPA_PLATFORM=eglfs
QT_QPA_EGLFS_DEBUG=1 QT_LOGGING_RULES=qt.qpa.*=true
mythfrontend $ARGUMENTS<br>
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<div>It runs, but the CONFIG is defaulting to my UHD 4K
parameters so the FPS jitter goes from +/-0.03 to +/- 1.29.
and the picture is no longer smooth. With the config it's
supposed to make it 1080P. When it works it's great.</div>
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<div>Jim A<br>
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<p>If I switch the RPI4 over to a 1080p FHD TV and just run:</p>
<p>QT_QPA_EGLFS_ALWAYS_SET_MODE="1" QT_QPA_PLATFORM=eglfs
mythfrontend</p>
<p>It works fine with very good FPS jitter. So the culprit seems to
be something is the way the QT_QPA_EGLFS_KMS_CONFIG=...json part
of the command is working to cause the error.</p>
<p>Jim A</p>
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