wanting to PM acer-manny about a problem with a hb271hua monitor

another_user
another_user Member Posts: 9 New User
edited October 2023 in 2020 Archives
I'm having a problem with this monitor. would like to PM acer-manny about it but I'm new and having trouble doing that.
Could someone please contact me to help please.
Thanks

Answers

  • billsey
    billsey ACE Posts: 35,044 Trailblazer
    What problem do you have?
    Click on "Like" if you find my answer useful or click on "Yes" if it answers your question.
  • another_user
    another_user Member Posts: 9 New User
    I have a problem like the following, only the problem is intermittent on my Acer Predator model XB271HU A:
    I think I have FW version 20170206_0_3025_15, does that sound correct?
    My Nvidia driver is version 456.38.
    When I looked up this information about the monitor, I seemed to have inadvertently changed something - I think perhaps the horizontal centre has been shifted a little to the left. I'm now finding it harder to reproduce the error.
    For the first problem, is there a firmware update that might fix it?
  • another_user
    another_user Member Posts: 9 New User
    So here's a screen shot, that shows the midline and the leftshift (I'm guessing the latter is easy to fix with an adjustment) - hmm, hard to see on the photo when I post it (hence, 2 copies), but easy to see on my pc. Strange.


  • another_user
    another_user Member Posts: 9 New User
    A third try at posting the image, but same result. The monitor at the moment is set to 1920*1080. If I change the resolution (on the nvidia control panel) to 2560*1440, that will usually fix the problem (for an unpredictable amount of time).
  • another_user
    another_user Member Posts: 9 New User
    Okay, uploading a picture from my camera - shows up on that, but not screen shots.

  • billsey
    billsey ACE Posts: 35,044 Trailblazer
    Yup, a screen shot shows what the computer is sending out, not what the monitor is displaying. :) Have you contact Acer support yet? There is definitely some sort of tearing there, like a vertical column is missing...
    Click on "Like" if you find my answer useful or click on "Yes" if it answers your question.
  • another_user
    another_user Member Posts: 9 New User
    Thanks Billsey, yes I've contacted support. They want me to try a different cable, computer and graphics card before looking at the monitor.
  • billsey
    billsey ACE Posts: 35,044 Trailblazer
    It certainly makes sense to try and do more diagnostics before sending the monitor in. Do you know someone where you could take it over and try it on their system? If not a different cable shouldn't be too tough to try. Different GPU is tougher, but perhaps a different port on your card?
    Click on "Like" if you find my answer useful or click on "Yes" if it answers your question.
  • another_user
    another_user Member Posts: 9 New User
    Hi Billsey, thanks but no I don't really know someone who could help; and it's intermittent in a quite unpredictable (for me) manner - sometimes I'll have periods when the problem is more or less constant, other times it's a week or more between the problem occurring. A new cable is not a big outlay, sure. I'm happy to try the HDMI output to try to reproduce the problem, but if I understand my GTX 1080 correctly (https://www.gigabyte.com/au/Graphics-Card/GV-N1080WF3OC-8GD/sp#sp), the output from the HDMI port is not at as high a data rate as the output from the DP port. Might that give a false negative, if the problem relates to how the monitor displays high data rate output? Anyway, I'll give that a go and post results back here.
    Kind regards
  • billsey
    billsey ACE Posts: 35,044 Trailblazer
    Yeah, that's pretty much inherent in HDMI vs DP, HDMI at 120Hz pulls the same performance out of the GPU as DP at 144Hz, due to the digital vs analog stuff, as I understand it. What frequency are you running at now?
    Click on "Like" if you find my answer useful or click on "Yes" if it answers your question.
  • another_user
    another_user Member Posts: 9 New User
    Hi Billsey, in a demanding game I'll get about 144Hz much of the time (and dip below that quite regularly).
    Taking a step back though: I didn't really talk Acer support through the screen-shot vs photo image. I'll try a new DP cable (cheap enough), but surely the difference between the screen-shot and the photo image is pretty strong evidence that the GPU / CPU etc side is preparing the image to render correctly, and the defect in the rendering is arising after that, in the cable or the monitor? If the GPU, e.g., were causing the midline would it not also be present in the screen-shot?
    Kind regards


  • billsey
    billsey ACE Posts: 35,044 Trailblazer
    Not really, if its the GPU itself causing the issue the render that the OS 'sees' would still be good, so the screenshots would be good, but the signal sent from the GPU to the monitor could be hosed, or just slightly off as your is. Remember there are several interfaces involved... The OS HAL which converts what the OS wants to something the hardware (GPU) understands, the GPU to port where the GPU sends data after doing what it needed to the image, then the port to port over the cable and finally the port to display transition that the monitor does. Because the screenshot is good we know it's not an issue at the OS itself, but not really where else in the chain the issue actually is. Try different frequencies so we can get a baseline for where the issue hits. If you are running 60Hz, 75Hz, 120Hz, 144Hz, etc...
    Click on "Like" if you find my answer useful or click on "Yes" if it answers your question.
  • another_user
    another_user Member Posts: 9 New User
    edited October 2020
    You think, given the information available, the *most likely* cause of the problem is *not* another manifestation of the G-Sync firmware issue known to cause problems like this with a monitor such as mine?
    I'm trying to find out how that would play out from here - if I spend the time and money to confirm to Acer's satisfaction 'yes it's that' what is on offer?
    Is there likely to be a firmware remedy or some other remedy on offer?

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