* tony Hamilton <shaky.st...@ntlworld.com> [11-30-20 20:14]:
> Ah, OK, thanks for the clarification. In another test I have invoked
> darktable from the command line using the application name only with no
> options or parameters. I then asked dt to import a newly created folder of
> images which I have just copied from a network drive. Import completed
> without freezing but on examining the command line window I see a number of
> messages/warnings. The first is:
>
> "(darktable:5370): Gtk-WARNING **: 18:31:21.049: Attempting to add a widget
> with type GtkBox to a container of type GtkStack, but the widget is already
> inside a container of type GtkStack, please remove the widget from its
> existing container first."
>
> I have no idea what all this means. This message is then followed by
> multiple instances of "sh: 1: Syntax error: "(" unexpected" - one message
> for each image that was imported. Again, I have no idea of what tis message
> means.
we cannot see the lines which you refer, please type them here and we will
try to explain.
> Now, about hardware: I use this same model of nVidia card on an old computer
> with an early i5 processor, running Win 10. OpenCL is active and darktable
> edits work there just fine - obviously not quick, but not unusable. Freezing
> during import does not occur in this windows installation.
>
> This linux machine I am running darktable on is an 11 year old computer,
> originally with an i5 dual core CPU, which I have updated to a 2009 vintage
> Lynnfield i7 860 (the most I can install on this motherboard). Until
> recently it was a dual boot machine, with Win 10. Under Windows it ran
> high-CPU-demand apps like RawTherapee, Capture One, Photoshop, LightRoom
> surprisingly quickly. Running typical home/office apps under Mint 20 is as
> fast as anything I have used before and is comparable to my newest windows
> machine, with a 9th generation i7, multiple SSDs and 32 GB RAM.
>
> In short, I don't think I have a serious performance issue.
>
> I do run with Psensors active all the time (to be sure I am not going to
> melt that old i7); none of the cores get anywhere near T.Junc. limit. I also
> have plenty of RAM for linux (16 GB). Running top does not show any
> significant problems: total memory demand is running at about 8 to 11 GB;
> swap is never used. CPU is running surprisingly low.
>
> While writing this message I have tried starting the GUI version of
> darktable and then importing newly copied folders. During the past 24 hours
> I have made the lucky guess (a miracle really) at why OpenCL was not
> available ( file /etc/OpenCL/vendors/nvidia.icd defined an nvidia driver
> which I was not using - now corrected). One of those import attempts ran
> without issue; the other failed with freezing as before. htop did not show
> any striking anomalies.
>
> In short, I still do not understand why darktable GUI is freezing.
>
perhaps you should provide us the address of the directory you are trying
to import, the full path name.
and provide a sample image for use to try to import.
and do not include it in your email, but place it on a file sharing
service or a web server where you have access.
>
> On 30/11/2020 06:08, KOVÁCS István wrote:
> > On Sun, 29 Nov 2020 at 17:35, tony Hamilton <shaky.st...@ntlworld.com>
> > wrote:
> > > Not sure that I fully understand 'run from the command-line'
> > I merely meant starting a shell, and using the 'darktable' command
> > there to launch the application, hoping that you'd get some error
> > message printed there when darktable freezes. I also get freezes every
> > now and then (usually after export, though), but I'm running the
> > development version of the code, so that can be unstable; plus, my PC
> > is ancient.
> >
> > > A comprehensive search on the internet returns NO 'hits' which discuss
> > > OpenCL on Linux Mint 20
> > > I am using Linux Mint 20 driving an
> > > nVidia GTX 645 OEM card, using driver nvidia-driver-455 version
> > > 455.38-0ubuntu0-20.04.1.
> > [...]
> > > I now have and have discovered that OpenCL is not available in my system.
> > That card is probably too old. The good news is, if OpenCL is
> > disabled, it cannot cause issues (the bad news is, you miss out on
> > performance; with a second-hand NVidia 1060, my 12-year-old machine is
> > still usable with darktable).
> >
> > You say the hang-after-import is a new development. Are you aware of
> > anything that changed? (Software upgrades, hardware changes, are you
> > new importing a lot more photos in at once than previously? Have you
> > cleaned your PC's inside recently? Dust can cause overheating.)
> >
> > Once darktable hangs, if you open another terminal and launch 'top' or
> > 'htop' (you may have to install them first), do you see high CPU usage
> > by darktable or is it idle? Do you see any signs indicating running
> > out of memory? (There probably is a similar tool with a more
> > user-friendly interface to monitor resources, but I'm not familiar
> > with it.)
> >
> > Kofa
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> >
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