On Sun, 21 Nov 2010, Tomáš Pospíšek wrote:
* remove preferences, start, preview, scan -> "Operation canceled"
* remove preferences, start, scan -> works!!!
* leave preferences, start, preview, scan -> "Operation canceled"
* leave preferences, start, scan -> "Operation canceled"
When looking at the log, the difference seems to be that both "Preview"
and the ``immediate'' "Scan" have an event flow like this:
[pixma] Reader task id=... (threaded)
[pixma] Setting non-blocking mode
[pixma] Reader task started
[pixma]
[pixma] pixma_scan(): start
[pixma] line_size=...
[pixma] dpi=...
[pixma] gamma_table=...
Whereas when scanning *after* the preview, the event flow looks like this:
[pixma] Reader task id=... (threaded)
[pixma] Reader task started
[pixma]
[pixma] pixma_scan(): start
[pixma] line_size=...
[pixma] dpi=...
[pixma] gamma_table=...
[pixma] Setting non-blocking mode
Notice the "Setting of the non-blocking mode" changing it's place in the
event sequence order.
*t
