BadAccess, BadShmSeg about howdy HOT 15 CLOSED

Could you try running it as sudo QT_X11_NO_MITSHM=1 howdy test?

To apply this fix permenatly add QT_X11_NO_MITSHM=1 to the bottom of /etc/environment.

from howdy.

Hi there, thanks for putting this together!

I had the same issue upon trying to run sudo howdy test and the viewer window was blank.

I tried running sudo QT_X11_NO_MITSHM=1 howdy test and it worked, though the image it returned was basically blank (see attached) and not dynamic (the image didn't really change even as I moved my face closer to the camera/emitters or waved my hand in front of them).

When I try using howdy normally it just times out and I have to enter the password. I assume it's because the image is not actually dynamic (i.e. not even recognizing something that resembles a face).

I'm running Ubuntu 18.04 LTS on a Thinkpad T480s.

from howdy.

This is a known decoding error in some cameras, could you try running sudo howdy config and setting force_mjpeg to true?

from howdy.

OK, did that and the test procedure gives an actual image -- great!

I just added two versions of my face (with and without glasses) to my profile then tried a few tests. Unfortunately I still get the timeout problem, so I still have to enter my password manually.

from howdy.

Try upping the certainty value, howdy might be recognizing you with too little match certainty.

from howdy.

I upped the certainty value to 9 and lowered the dark_threshold to 1 but still got the timeout error.

I noticed that when I run the test procedure, the frame rate and exposure consistency seems to depend heavily on the distance between my face and the emitters/camera. Still, even when I added a new face based on the distance and position I felt was most consistent in the test procedure, I still get the timeout errors.

Any other suggestions?

from howdy.

Following up on issues i forgot to reply to, are you still having this problem or did you fix it/uninstall Howdy?

from howdy.

from howdy.

Greenish static is a new symptom for me, does this static also show up when you open Cheese (search for Cheese in the dash)? You might need to try out different webcams/video sizes in the Preferences menu.

from howdy.

from howdy.

So Cheese is also just getting the garbage data? Does switching resolutions in the preferences change anything?

from howdy.

from howdy.

Great! Could you set the frame size in sudo howdy config to that format:

frame_width = 400
frame_height = 400

This should fix the problem.

from howdy.

Had the same problem, running it with sudo QT_X11_NO_MITSHM=1 howdy test finally worked.

from howdy.

I had exactly the same issue.
I was able so see my image in test, but it never had been recognized. Also in test, using IR camera, it never shown the red circle around my face (testing with the normal camera, everything worked fine). I completely solved the issue with the steps bellow:

1 - To fix green image:
In howdy config, simply set ( no need to set force_mjpeg or anything else):
frame_width = 400
frame_height = 400

2 - To fix testing interface:
add the line to /etc/environment
QT_X11_NO_MITSHM=1

3 - Finally to get the correct detection, including the red circle in howdy test, I had to set bright and contrast the parameters in v4l:

v4l2-ctl -d /dev/video0 --set-ctrl=contrast=0
and:
v4l2-ctl -d /dev/video0 --set-ctrl=brightness=255
check with:

$ v4l2-ctl -d /dev/video0 --list-ctrls
brightness 0x00980900 (int) : min=0 max=255 step=1 default=128 value=255
contrast 0x00980901 (int) : min=0 max=255 step=1 default=32 value=0

Doing this, I had no more problem with detection using IR camera.

from howdy.