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I am running a PyQt5 console GUI (eglfs) application and seeing a problem under bookworm that I was not present under earlier versions of Pi OS. I have observed this behaviour both on a Pi 2 with a DSI display and a Pi Zero 2 with a HDMI display, so it does not seem to be architecture dependent. I have not however seen the problem on Pi4 or Pi5. The screen will stop displaying (either freeze or go blank) and I then get the following error in the logger:

python[139076]: Could not queue DRM page flip on screen HDMI1 (No space left on device)

Does anyone have any idea why this might be happening, or what I might do to fix it?

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2 Answers 2

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The error message says:

No space left on device

...so you should check whether the storage partition on your Pi is full. You can do so using the df -h command in the terminal.

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  • Thanks, but there was plenty of space on all partitions.
    – Christi
    Commented Mar 6 at 15:18
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This turned out to be caused by a failed SD card. Replacing the SD card fixed the issue.

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