Canon's 650d preview ended without response

[wj7106]

Model Port

Canon EOS 650D usb:001,006

gphoto2 2.5.27.1 libgphoto2 2.5.22 libgphoto2_port 0.12.0

0.000942 main (2): ALWAYS INCLUDE THE FOLLOWING LINES WHEN SENDING DEBUG MESSAGES TO THE MAILING LIST: 0.003603 main (2): gphoto2 2.5.27.1 0.005294 main (2): gphoto2 has been compiled with the following options: 0.006948 main (2): + gcc (C compiler used) 0.007740 main (2): + popt (mandatory, for handling command-line parameters) 0.008459 main (2): + exif (for displaying EXIF information) 0.008636 main (2): + no cdk (for accessing configuration options) 0.008779 main (2): + no aa (for displaying live previews) 0.009278 main (2): + jpeg (for displaying live previews in JPEG format) 0.009431 main (2): + no readline (for easy navigation in the shell) 0.009591 main (2): libgphoto2 2.5.22 0.010229 main (2): libgphoto2 has been compiled with the following options: 0.010395 main (2): + all camlibs 0.011896 main (2): + gcc (C compiler used) 0.012533 main (2): + ltdl (for portable loading of camlibs) 0.012710 main (2): + EXIF (for special handling of EXIF files) 0.012884 main (2): libgphoto2_port 0.12.0 0.013776 main (2): libgphoto2_port has been compiled with the following options: 0.014419 main (2): + iolibs: disk ptpip serial usb1 usbdiskdirect usbscsi 0.014576 main (2): + gcc (C compiler used) 0.014717 main (2): + ltdl (for portable loading of iolibs) 0.014861 main (2): + USB (libusb1, for USB cameras) 0.015359 main (2): + serial (for serial cameras) 0.015514 main (2): + no resmgr (serial port access and locking) 0.015652 main (2): + no ttylock (serial port locking) 0.015789 main (2): + no lockdev (serial port locking) 0.017395 main (2): CAMLIBS env var not set, using compile-time default instead 0.018105 main (2): IOLIBS env var not set, using compile-time default instead 0.018262 main (2): invoked with following arguments: 0.018402 main (2): --debug 0.018536 main (2): --debug-logfile=debug.log 0.019920 load_settings (2): Creating gphoto config directory ('/home/pi/.gphoto') 0.020841 load_settings (2): Loading settings from file '/home/pi/.gphoto/settings'. 0.022729 gp_camera_free (2): Freeing camera... 0.023586 gp_port_free (2): Freeing port... 0.024339 gp_filesystem_reset (2): resetting filesystem 0.025044 gp_filesystem_lru_clear (2): Clearing fscache LRU list... 0.025491 gp_filesystem_lru_clear (2): fscache LRU list already empty 0.025665 delete_all_folders (2): Internally deleting all folders from '/'... 0.025810 lookup_folder (2): Lookup folder '/'... 0.026284 lookup_folder (2): Found! / is 0x14f0d60 0.026438 recurse_delete_folder (2): Recurse delete folder 0x14f0d60//

Canon 650d uses this system, can't use the preview, if used, the camera's USB has been occupied by the program, the camera can't automatically exit the preview, there seems to be a program in the background has been occupied, can only manually disconnect the USB, or manually take out the battery.

[msmeissn]

can you first try with a more recent libgphoto2, like 2.5.27 ? (you updated only the commandline tool, not the actuial library with the drivers). I did various Canon EOS related fixed between 2.5.22 and 2.5.27.

Not sure what you mean with "occupied by program" ?

[wj7106]

git clone https://github.com/gphoto/libgphoto2.git cd ~/libgphoto2 autoreconf --install --symlink ./configure make sudo make install Installed twice, libgphoto2 version or 2.5.22, what did I do wrong?

[wj7106]

I tested for one night. The camera is set to 30 seconds standby. When using the preview function, the camera will not enter the standby mode in 30 seconds. Instead, it adds 5 minutes on the basis of 30 seconds and becomes 5 minutes and 30 seconds standby. As long as it enters the standby mode and wakes up again, the camera will be in normal condition. If the preview function is not used, the camera will automatically enter the standby mode in 30 seconds after taking a picture. This is only a problem Only this 650d will appear, if it is 500D and 6D, using preview, it will enter the standby mode according to the set standby time, without adding 5 minutes!

[websocketing]

@wj7106 You should be from China?

[websocketing]

@wj7106 I'm glad to see you pay attention to me. Are you from China? Can you tell me your email, QQ, wechat and other contact information? We can talk.