Addition to bug info:
> Without a fix, users cannot reliably use a rotated touchscreen.
Without fix users unable to use serveral screens one or more of which are touchscreens, on systems or drivers which do not support separate coordinate systems for each physical screen, e.g. ATI FireGL or NVIDIA adapters with two or more displays attached to single adapter, because that requires set a scaling+transition CTM.
Addition to bug info:
> Without a fix, users cannot reliably use a rotated touchscreen.
Without fix users unable to use serveral screens one or more of which are touchscreens, on systems or drivers which do not support separate coordinate systems for each physical screen, e.g. ATI FireGL or NVIDIA adapters with two or more displays attached to single adapter, because that requires set a scaling+transition CTM.