Bug hunting: Bulb mode in 7D and - maybe - other Digic 4 cams

[Walter Schulz]

Steps to reproduce:
Start photo mode with ML defaults.
Take a pic.
Switch cam to bulb mode.
Open ML menu. Go to Shoot screen -> Bulb mode -> Q
Set Exposure duration to 40 seconds
Set Display during exposure to Show previous pic
Leave menu by half-shutter press.
Press half-shutter for > 1 seconds. Cam should make a beep and beginn to take a pic.

Expected result (with bug):
- Screen turns dark (no pic shown) and remaining time counts down. (Upper left area).

After bulb mode terminated you will see the pic in review.

Now take a second pic in bulb mode. Expected result (with bug):
- Screen turns dark (no pic shown) and remaining time does not show up at all.


Please test (owners of other D4 cams as well) and report back!

EDIT: Found time to downgrade to 2.0.3 and build #3 (2013Dec22). Did not work either. Third shot with option Show previous pic: No countdown line written. And clock (counting up exposure time, showing lower right corner) doesn't show up at all. Missing pic, too.
More to debug:
Option "Display during exposure Don't change" doesn't show any message. 650D shows clock incrementing.
Awaiting reports from other D4 owners before opening Bitbucket issue.


650D, option "Display during exposure Don't change"

[Walter Schulz]

https://bitbucket.org/hudson/magic-lantern/issues/2927/silent-pics-option-best-focus-broken
Don't know if other DiGiC 5 cams are affected. Please test other D5 cams and reply here.
EDIT: a1ex told this feature can not work on 650D and most likely not working on 700D/M, too.
And we need a list of cams able to work, including D4:

How to reproduce:
Modules menu -> Silent.mo ON -> Reboot
Shoot menu -> Silent Pics -> Q -> Select "Best Focus" -> Q -> Silent Picture ON
Enter Liveview
Half-Shutter press for some seconds.
Release Shutter
Cam will process pictures.
If most pics are garbled: But is there.



Confirmed working on:
7D (Walter Schulz)

Confirmed broken on:
650D (Walter Schulz)
100D (Walter Schulz)