1. Go to Tools - Options - Calc - Formula. 2. Set the Detailed calculation settings to Custom, and click Details to open the details dialog. 3. Enable OpenCL calculation by setting it to True, then set the automatic selection of platform/device to False. 4. Select "Internal, software interpreter" as the device. 5. Click OK to dismiss the dialog. 6. Now, back to the main Options dialog, click Details again to open the same dialog. 7. When you go back to the OpenCL setting, the "Internal, software interpreter" is no longer selected. In fact, no devices are selected. But the software interpreter should be selected on re-opening of this dialog.
Confirming and taking it.
Kohei Yoshida committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/core/commit/?id=4b5a98942cd3ebcdacd4d66fb2bd61211fcfe7bc fdo#73408: Make the software interpreter selection stick in the UI. The patch should be included in the daily builds available at http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
Cherry-pick request for 4.2 is underway: https://gerrit.libreoffice.org/#/c/7323/
Kohei Yoshida committed a patch related to this issue. It has been pushed to "libreoffice-4-2": http://cgit.freedesktop.org/libreoffice/core/commit/?id=ea38aead924caeae9d51dec5246fef27f4fa456e&h=libreoffice-4-2 fdo#73408: Make the software interpreter selection stick in the UI. It will be available in LibreOffice 4.2.1. The patch should be included in the daily builds available at http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
fixed.