[kwin] [Bug 436053] Plasma Wayland hangs when booting in basic graphics mode

[Aleix Pol]

https://bugs.kde.org/show_bug.cgi?id=436053

--- Comment #15 from Aleix Pol <aleix...@kde.org> ---
Created attachment 137829
  --> https://bugs.kde.org/attachment.cgi?id=137829&action=edit
weston on fbdev with nomodeset

It looks a bit wonky but it works fine. KWin doesn't seem to refresh. I added
some debug info:
void FramebufferVsyncMonitorHelper::poll()
{
    qDebug() << "poll!";
    if (ioctl(m_fileDescriptor, FBIO_WAITFORVSYNC)) {
        qDebug() << "poll error!" << strerror(errno);
        emit errorOccurred();
    } else {
        qDebug() << "poll vblank!";
        emit
vblankOccurred(std::chrono::steady_clock::now().time_since_epoch());
    }
}

When running from nomodeset I get:
 KWin::FramebufferVsyncMonitorHelper::poll poll!
 KWin::FramebufferVsyncMonitorHelper::poll poll error! Inappropriate ioctl for
device

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