[MC-8776] Comparators do not update their output signal Created: 31/Jan/13  Updated: 27/Mar/17  Resolved: 07/Mar/13

Status: Resolved
Project: Minecraft: Java Edition
Component/s: None
Affects Version/s: Snapshot 13w05a, Snapshot 13w05b, Snapshot 13w09a, Snapshot 13w09b, Snapshot 13w09c, Snapshot 13w10a, Snapshot 13w10b
Fix Version/s: Snapshot 13w06a, Minecraft 1.5

Type: Bug
Reporter: LPXX Assignee: [Mojang] Nathan Adams
Resolution: Fixed Votes: 20
Labels: redstone, redstone-comparator
Environment:

Mac OSX Lion


Attachments: PNG File 2013-03-02_15.56.15.png     PNG File Minecraft 2013-02-15 01-10-16-017.png    
Issue Links:
Duplicate
is duplicated by MC-8827 comparator bug Resolved
is duplicated by MC-8834 Comparators react weirdly to side-cur... Resolved
is duplicated by MC-8867 Comparators do not update when Input ... Resolved
is duplicated by MC-8904 The comparator sometimes not detect t... Resolved
is duplicated by MC-8909 Comparator output with hoppers Resolved
is duplicated by MC-8913 Comparators stay on when stronger pul... Resolved
is duplicated by MC-8928 Comparator does not react, as it should Resolved
is duplicated by MC-8960 Hopper + Comparitor's signal not reli... Resolved
is duplicated by MC-9017 Comparator Doesn't update its output Resolved
is duplicated by MC-9052 Comparator doesn't output redstone-si... Resolved
is duplicated by MC-9058 Comparator graphic bug Resolved
is duplicated by MC-9067 Comparators don't reset their signal ... Resolved
is duplicated by MC-9086 Comparator Does Not Work The Way It I... Resolved
is duplicated by MC-10335 Comparator doesn't update properly as... Resolved
is duplicated by MC-10428 Comperator Update Resolved
is duplicated by MC-10432 Comparators not updating. Resolved
is duplicated by MC-10645 Comapator not updating well Resolved
is duplicated by MC-10691 Redstone Comparator Locking Function ... Resolved
is duplicated by MC-10732 Comparators on "compare" mode do not ... Resolved
is duplicated by MC-11106 Comparator output not updating when s... Resolved
is duplicated by MC-11153 Comparator doesn't change Output when... Resolved
Relates
relates to MC-9687 Hopper don't update comparator when r... Resolved
CHK:
Confirmation Status: Confirmed
Game Mode: Creative

 Description   

Comparators do not update there output signal except when right-clicked twice. each time one wants an updated output signal



 Comments   
Comment by Josiah [ 13/Mar/13 ]

Max, this was fixed in Pre-Release 1.5.

Comment by Max Langhof [ 13/Mar/13 ]

Why is this considered "resolved because fixed"? The latest snapshots still have this bug, and i doubt mojang will fix it with the current status...

Comment by Josiah [ 06/Mar/13 ]

Still not working in 13w10b.

Comment by Josiah [ 04/Mar/13 ]

Reproducible in 13w10a.

Comment by Tails [ 02/Mar/13 ]

Still reproducible in 13w09c.

Comment by Anon Ymus [ 02/Mar/13 ]

Works fine now. Both side inputs and hopper inventories update comparators without a problem.

Comment by Daniel Bluhm [ 02/Mar/13 ]

Sorry but here is not the place to talk about it nor does it pertain to this bug so please move your frivolities to the forums, I really don't want this to be overlooked because of irrelevant comments. It is a major bug in my opinion.
This bug was definitely fixed in 13w06a, at least for my system, though I don't think there is any variance based on the system itself. On the machines I've tested it on, it was still present in both a linux and windows environment and various hardware configurations.

Comment by chris [ 01/Mar/13 ]

I would like to see this feature re-added because it was great

Comment by Randal Jones [ 01/Mar/13 ]

Oh no! I loved that "feature". It's very useful: A hopper, a comparator output and a power source all attached to a dropper or dispenser made it fully-automatic to empty all of it's contents without a clock--at three per second it is (was) faster than a clock can run, in fact. I'm sure I read that listed in the wiki as a feature/use of a comparator with a dispenser or dropper but there is no mention of it now. It worked yesterday when I was using 13w07a and now you are saying it has been "fixed?!" That's unfortunate.

Comment by Tails [ 01/Mar/13 ]

No, that bug was fixed, see MC-6077.

Comment by Randal Jones [ 01/Mar/13 ]

Comparators do not cause droppers to fire continuously in 13w09c. Is this the same bug?

Comment by Josiah [ 01/Mar/13 ]

Still busted in 13w09c.

Comment by chris [ 28/Feb/13 ]

i can confirm this too.

http://youtu.be/iYC2h4H5jvM

Comment by Josiah [ 27/Feb/13 ]

Still exists in 13w09b.

Comment by CharlesC [ 27/Feb/13 ]

yep i can confirm this one, failing in 13w09b too

Comment by Tails [ 26/Feb/13 ]

Reopened.

Comment by Daniel Bluhm [ 26/Feb/13 ]

This bug is back in 13w09a. It behaves exactly the same way as it did in 13w05a and b. The subtraction mode works as it should but, while in normal mode, the comparator does not update if the side inputs update.

Comment by Tails [ 15/Feb/13 ]

See MC-9687.

Comment by Ano Nym [ 15/Feb/13 ]

Can a mod reopen this issue? It is not 100% solved.

To reproduce in 13w07a, I used a comparator to check for the inventory of a hopper. If you toss 1 item into the hopper, the comparator sometimes goes on, sometimes it does NOT. After updating the comparator it will always turn on. Inluded a screenshot for proof.

Comment by Kienose D. [ 03/Feb/13 ]

Check MC-9017 too, simple configuration to reproduce it.

Comment by Zé Carlos [ 01/Feb/13 ]

MC-8834 has good images explaining this bug, you might want to take a look.

Comment by Norman B. Lancaster [ 01/Feb/13 ]

I think the description is misleading. For me the output strength is updated sometimes but not all the time.

Comment by Zé Carlos [ 01/Feb/13 ]

This bug doesn't seem to have been fixed in Snapshot 13w05b

Comment by Amir Heidari Zadi [ 31/Jan/13 ]

Confirmed. Subtraction mode works fine, but doesn't update in compare mode.

Comment by Tails [ 31/Jan/13 ]

Confirmed.

Comment by Kwin van der Veen [ 31/Jan/13 ]

I can confirm this, but only when the comparator is in compare mode, subtraction seems to work just fine. A comparator does update after the signal strength changes on the input.

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