[Gphoto-user] Canon 650D got busy when autofocus failed.

Discussion:

Lihuijun

2014-07-29 03:25:40 UTC

Hi,
I used the gphoto2 command "--capture-image" to shoot with my Canon 650d. Sometimes when the camera autofocus function failed, the gphoto2 reported:
*** Error***Canon EOS Trigger Capture failed to release: Perhaps no focus?ERROR: Could not trigger image capture.ERROR: Could not capture.
After that, when I issued other commands, the camera came into a "busy" state and not work any more. *** Error***Canon EOS Trigger Capture failed : 0x0(0x2019 PTP Device Busy)ERROR: Could not trigger image capture.ERROR: Could not capture.
I had to power off and on the camera and it could get to work again. That was a big inconvenience, because I could not stay always by the side. Is there a software solution to check the camera state and release it from "busy"?
Best regards,
Li

Marcus Meissner

2014-07-29 07:26:20 UTC

Permalink

Post by Lihuijun
Hi,
*** Error***Canon EOS Trigger Capture failed to release: Perhaps no focus?ERROR: Could not trigger image capture.ERROR: Could not capture.
After that, when I issued other commands, the camera came into a "busy" state and not work any more. *** Error***Canon EOS Trigger Capture failed : 0x0(0x2019 PTP Device Busy)ERROR: Could not trigger image capture.ERROR: Could not capture.
I had to power off and on the camera and it could get to work again. That was a big inconvenience, because I could not stay always by the side. Is there a software solution to check the camera state and release it from "busy"?

I see the same with the EOS 100D here.

Will investigate, it is nothing obvious at least.

Ciao, Marcus

toxic2k

2014-10-01 07:06:00 UTC

Permalink

Hi,

Same problem here with Canon EOS 700D is there a fix or workaround?
Thanks!

Post by Lihuijun
Hi,
I used the gphoto2 command "--capture-image" to shoot with my Canon 650d.
*** Error***Canon EOS Trigger Capture failed to release: Perhaps no
focus?ERROR: Could not trigger image capture.ERROR: Could not capture.
After that, when I issued other commands, the camera came into a "busy"
state and not work any more. *** Error***Canon EOS Trigger Capture failed
Could not capture.
I had to power off and on the camera and it could get to work again. That
was a big inconvenience, because I could not stay always by the side. Is
there a software solution to check the camera state and release it from
"busy"?

I see the same with the EOS 100D here.

Will investigate, it is nothing obvious at least.

Ciao, Marcus

Post by Lihuijun

Post by Lihuijun
Hi,
I used the gphoto2 command "--capture-image" to shoot with my Canon 650d.
Sometimes when the camera autofocus function failed, the gphoto2
*** Error***Canon EOS Trigger Capture failed to release: Perhaps no
focus?ERROR: Could not trigger image capture.ERROR: Could not capture.
After that, when I issued other commands, the camera came into a "busy"
state and not work any more. *** Error***Canon EOS Trigger Capture failed
: 0x0(0x2019 PTP Device Busy)ERROR: Could not trigger image
capture.ERROR: Could not capture.
I had to power off and on the camera and it could get to work again. That
was a big inconvenience, because I could not stay always by the side. Is
there a software solution to check the camera state and release it from
"busy"?

I see the same with the EOS 100D here.
Will investigate, it is nothing obvious at least.
Ciao, Marcus
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Raffaele Colleo

2014-10-03 06:23:26 UTC

Permalink

Hi all,
I managed tou instal the latest version of gphoto2
to do that I had to download pkg-config and configure for compilation in this way:

./configure --prefix=/usr \
--with-internal-glib \
--disable-host-tool \
--docdir=/usr/share/doc/pkg-config-0.28

After that I was able to configure, make and install gphoto2
gphoto2 2.5.5 gcc, popt(m), no exif, no cdk, no aa, no jpeg, no readline
libgphoto2 2.5.5 all camlibs, gcc, ltdl, no EXIF
libgphoto2_port 0.10.0 gcc, ltdl, USB, serial without locking

My cannon 550D is working perfectly, but my Nikon D5200 its not.

What happens is that the process stays there and I have to do something on another ssh windows (that's how I am connecting to the server) and the capture image and download is executed, otherwise it stays there for eternity.

Any Ideas?

Raffaele

I see the same with the EOS 100D here.

Will investigate, it is nothing obvious at least.

Ciao, Marcus

Post by Lihuijun

Post by Lihuijun
Hi,
I used the gphoto2 command "--capture-image" to shoot with my Canon 650d.
*** Error***Canon EOS Trigger Capture failed to release: Perhaps no
focus?ERROR: Could not trigger image capture.ERROR: Could not capture.
After that, when I issued other commands, the camera came into a "busy"
state and not work any more. *** Error***Canon EOS Trigger Capture failed
: 0x0(0x2019 PTP Device Busy)ERROR: Could not trigger image
capture.ERROR: Could not capture.
I had to power off and on the camera and it could get to work again. That
was a big inconvenience, because I could not stay always by the side. Is
there a software solution to check the camera state and release it from
"busy"?

--
View this message in context: http://gphoto-software.10949.n7.nabble.com/Canon-650D-got-busy-when-autofocus-failed-tp14575p14754.html
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toxic2k

2014-10-05 07:55:27 UTC

Permalink

Hello,

after i upgraded to 2.5.5 gphoto2 hangs when the auto focus fails and i want
to talk a another picture.
I have to kill the process in the terminal.

Any Ideas? Thanks...

Do you need a logfile or everything else? Still Canon Eos 700D

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Marcus Meissner

2014-10-08 20:48:00 UTC

Permalink

Hi,

Can you try out:

http://www.lst.de/~mm/libgphoto2-2.5.5.2.tar.bz2

The reason is that autofocusing blocks the camera and needs to be explicitly
canceled.

--set-config autofocusdrive=0

will bring the camera out of autofocus (or closing the camera in libgphoto2).

Ciao, Marcus

Post by toxic2k
Hello,
after i upgraded to 2.5.5 gphoto2 hangs when the auto focus fails and i want
to talk a another picture.
I have to kill the process in the terminal.
Any Ideas? Thanks...
Do you need a logfile or everything else? Still Canon Eos 700D
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View this message in context: http://gphoto-software.10949.n7.nabble.com/Canon-650D-got-busy-when-autofocus-failed-tp14575p14763.html
Sent from the gphoto-user mailing list archive at Nabble.com.
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