[Bug 109248] [WHL] FIFO underruns on a hybrid machine but only while on "performance" (dGPU) mode

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109248

--- Comment #5 from Ethan Hsieh <ethan.hsieh at canonical.com> ---
Hi Cooper

Here is reproducing steps:

1. connect an external monitor via HDMI port
2. switch display mode to mirror mode
3. switch display mode to external only
4. switch display mode to internal only
5. switch display mode to extended mode
6. Go to 2

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