11 replies to this topic

[OregonSky]

For the last few weeks I have been getting half second flashes of banded color  - like the ones in the first 2 photos attached. 

The Zebra Like patterns are NOT in the Flashes.     I used my hand camera to take those 2 pictures from my PC Screen -  from a 8 second MP4 video I shot of it happening.   I needed a third hand to move the sliders and take the video.

 

The flashes happen when I move the histogram sliders or some of the other adjustable functions of Sharpcap.

 

The last image is the save as seen from the capture.  It doesnt seem to be affecting the images.

The longer the stack runs - the weaker the colors in the flashes seem to be.

 

I'm using a Windows 10 Laptop with 12 GB Ram.

M17  -  Celestron 6se  -  6.3 Reducer -  Player One Uranus C Camera - Sharpcap 4.1

 

What causes these Flashes of banded color ??

 

3AM Here -  Off to bed  -

Thanks for your input. 

 

MIKE

 

 

 

 

 

 

 

[Davemartin888]

Interesting, I’m seeing the same hung with no real pattern as to when they happen. I have an ASIAir 2600 MC. They are not in the individual exposures or the stack as far as I can tell. 

[OregonSky]

Hi Dave  - 

Since there was only you and I thus far  -  I posted on Sharpcap Bug Fixes a link to here and I included my Log File from the session for Robin to Look at. 

 

https://forums.sharp...opic.php?t=7920

 

It somehow does make me feel better that I'm not the Only One  -  LOL .

I've been known to be a test case guy.  

 

MIKE in OREGON

Edited by OregonSky, 26 July 2024 - 05:41 PM.

[mgCatskills]

While slightly beyond my windows pay-grade (I'm now mostly a Mac guy), that looks like a Windows graphics driver issue... possible that Windows update updated your driver to one that's incompatible.  One possibility is to "roll back" your driver.

 

If Windows Update recently made updates to your device, roll back your display driver. Otherwise, try updating or uninstalling your display driver to fix the flickering or scrambling problem.

Roll back your display driver

    In the search box on the taskbar, enter device manager, and then select it from the list of results.

    Select the arrow to expand Display adapters.

    Under Display adapters, right-click the adapter, then select Properties.

    Select the Driver tab, and then select Roll Back Driver > Yes.

    Restart your device.

 

See:  https://support.micr...47-dc262675fc7b

[RodgerDodger008]

+1 on potential driver issue but I don't think we know enough info yet.

For example do you you use a external screen or is this on a laptop? A flaky hdmi cable could also cause this to happen for example.

Using rdp to remote in, that could also cause display issues. Good luck

Edited by RodgerDodger008, 26 July 2024 - 06:19 PM.

[OregonSky]

"One possibility is to "roll back" your driver.  "

 

Good thought Michael. 

I will try that on Sunday .    The way my Driver / Update / Plug and Play / Reload adventures of the past have gone , I hesitate to try until after our Saturday Night Event.   I can see it turning into a no computer for a week event.

 

Mike

 

-----------

A few years ago,  one of my customers was Certified in every level of Windows.   We traded product for Computer work.

One day I had a windows message that I didnt understand what to do about and he assured me it was NOT a windows message but said he would stop by on his way home.   After viewing it,  he stepped back - rubbed his chin - and said  WOW I've never seen that before.

[roelb]

I have the same issue encountered ad random.

It seems this has been happening since the last update(s).

I look forward to Robin's answer.

note: using a ZWO ASI533MC-Pro and Windows 11.

[OregonSky]

UPDATE

 

Robin is already looking into the issue  - and has requested information from others about their instances.  

 

I have just updated my post at Sharpcap with what info I can provide at the moment.   

 

I figured out how to use One Drive (  I think ) and added these file links of the two previously mentioned videos. 

Is this what you are seeing as well  ??

 

https://1drv.ms/v/c/...pYR0Hg?e=ha7AP2

                       

https://1drv.ms/v/c/...nMzm3A?e=3UvXlj

 

Mike

[rwgrwg]

Hi,

 

thanks everyone for the info - I think I have tracked this down to the recent versions allowing the image to be updated while a new frame is being added to the stack. This should be prevented, but the code to prevent it seems to be broken, probably by changes made to allow the 'unstack' feature to work.

 

If you want to work around the issue for now, please switch to 'Sigma Clipped' stacking mode, which is not affected (or at least, doesn't show the coloured flashes when affected). I hope to have a fix by Monday's update.

 

cheers,

 

Robin

[roelb]

Thanks Robin.

Here is my test on a stack from Seestar S50 of Pelican Nebula: https://mega.nz/fold...fN7G5IxaE4iScKQ

The issue appears when moving the histogram sliders.

Switched to "Sigma Clipping" and it disappears.

Looking forward to Monday's update.

[rwgrwg]

Thanks everyone - this issue is now resolved in version 4.1.12452 which is available on our downloads page (https://www.sharpcap...rpcap/downloads). You will need to download and install manually - this will not appear via auto-update yet.

 

clear skies!

 

Robin

[roelb]

Thanks Robin, it now works without flashes.

Edited by roelb, 29 July 2024 - 07:51 PM.