Re: [darktable-user] "Inconsistent Output" Message
Thanks Ulrich for this explanation. This clarifies and I see now two clearer issues: * 1 this message is unclear and conveys a more alarming message than needed. * 2 the user does not know that changing anything triggers a re-render without any bad consequence * 3 changing anything feels like a workaround. The user should have an option to just re-render. I see two ways to fix these issues : * I guess the developers have considered fixing the issue (increasing the timeout ? Retrying the computation ?) and not done it for good reasons. * A simpler way:changing the wording. Perhaps something like: "Rendering timed out. You can continue adjusting parameters or [Retry]." with [Retry] being a clickable button that just requests another render without actually changing any parameter. This way, the user is not needlessly alarmed (fixing issue 1) and know they can just continue adjusting I might be stating the obvious, or not, since choosing good words (towards a user that is not a developer) is not that obvious and sometimes overlooked. In case it's useful I'm happy to add my two cents. Cheers ! -- Stéphane Le 09/12/2018 à 19.46, Ulrich Pegelow a écrit : Am 09.12.18 um 08:59 schrieb Stéphane Gourichon: My guess is a memory corruption error in some part of darktable. Of course it would be nice if somehow could trace this. (I'm willing to, but currently not using darktable much, and quite busy with other projects.) Well, no. The error message appears when darktable is not able to synchronize the two pixelpipes in darkroom mode: the preview one for the navigation window and the "full" one for the center view. Both pixelpipes normally run asynchronously as separate processes. Some of darktable's modules require a synchronization: the full pixelpipe needs to wait at certain points until the preview pixelpipe produces the needed data. Without that missing data the module in the full pixelpipe would produce wrong results, the output of the two pixelpipes would no longer be consistent. In some cases synchronization fails, e.g. when the full pixelpipes needs to wait too long and a pre-defined timeout value is exceeded (config variable pixelpipe_synchronization_timeout). If that happens the above warning message is displayed. However, this is of no big concern. Typically with the next processing step all is good again. Any zooming in or out, panning, (de-)activating of modules or any value change is sufficient. Ulrich -- Stéphane Gourichon darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
Re: [darktable-user] "Inconsistent Output" Message
Am 09.12.18 um 08:59 schrieb Stéphane Gourichon: My guess is a memory corruption error in some part of darktable. Of course it would be nice if somehow could trace this. (I'm willing to, but currently not using darktable much, and quite busy with other projects.) Well, no. The error message appears when darktable is not able to synchronize the two pixelpipes in darkroom mode: the preview one for the navigation window and the "full" one for the center view. Both pixelpipes normally run asynchronously as separate processes. Some of darktable's modules require a synchronization: the full pixelpipe needs to wait at certain points until the preview pixelpipe produces the needed data. Without that missing data the module in the full pixelpipe would produce wrong results, the output of the two pixelpipes would no longer be consistent. In some cases synchronization fails, e.g. when the full pixelpipes needs to wait too long and a pre-defined timeout value is exceeded (config variable pixelpipe_synchronization_timeout). If that happens the above warning message is displayed. However, this is of no big concern. Typically with the next processing step all is good again. Any zooming in or out, panning, (de-)activating of modules or any value change is sufficient. Ulrich darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
Re: [darktable-user] Inconsistent Output Message
yes usually when using the mouse wheel. dt 2.4.4 , Ubuntu 18.04.1 LTS Στις Παρ, 7 Δεκ 2018 στις 11:57 μ.μ., ο/η I. Ivanov έγραψε: > > On 2018-12-07 09:00, David Vincent-Jones wrote: > > > > I occasionally get the message 'Inconsistent Output' on my screen ... > > most often when I am going through a screen zoom with the mouse wheel. > > Apparently there is no damage done. Anybody else seeing this? > > > I have seen it too. > > > > darktable 2.5.0+979~g22ab1bc66 > > > DT 2.4.4 on Ubuntu 16.04 > > > > David > > > Regards, > > B > > > > > > > > > darktable user mailing list to unsubscribe send a mail to > > darktable-user+unsubscr...@lists.darktable.org > > > darktable user mailing list > to unsubscribe send a mail to > darktable-user+unsubscr...@lists.darktable.org > > -- Nickolas M. Vassou darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
[darktable-user] "Inconsistent Output" Message
Le 07/12/2018 à 18.00, David Vincent-Jones a écrit : I occasionally get the message 'Inconsistent Output' on my screen ... most often when I am going through a screen zoom with the mouse wheel. Apparently there is no damage done. Anybody else seeing this? darktable 2.5.0+979~g22ab1bc66 I have seen such a message from time to time. I think if was on darktable shipped with Ubuntu 18.04 (2.4.2). It might also be when I zoom and unzoom a lot. Experimenting would confirm that. Sometimes no other effect was observed. Sometimes, one step of the pipeline was corrupted, like the output of a bilateral filter had correct luma but shifted chroma (for example, shifted by roughly one third of the image width). When it happened once, it tends to happen again in the same session. A workaround is to close and reopen darktable. Since the workaround is so easy, and every time it happened it was not time for me to investigate code, I did not take note of details. My guess is a memory corruption error in some part of darktable. Of course it would be nice if somehow could trace this. (I'm willing to, but currently not using darktable much, and quite busy with other projects.) My two cents! -- Stéphane Gourichon darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
Re: [darktable-user] Inconsistent Output Message
On 2018-12-07 09:00, David Vincent-Jones wrote: I occasionally get the message 'Inconsistent Output' on my screen ... most often when I am going through a screen zoom with the mouse wheel. Apparently there is no damage done. Anybody else seeing this? I have seen it too. darktable 2.5.0+979~g22ab1bc66 DT 2.4.4 on Ubuntu 16.04 David Regards, B darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
[darktable-user] Inconsistent Output Message
I occasionally get the message 'Inconsistent Output' on my screen ... most often when I am going through a screen zoom with the mouse wheel. Apparently there is no damage done. Anybody else seeing this? darktable 2.5.0+979~g22ab1bc66 David darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org pEpkey.asc Description: application/pgp-keys
