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  1. #1
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    PG43UQ Driver Release?

    Just picked up a PG43UQ and am getting some wicked backlight flicker in some games. Nvidia claims that the driver required for G-Sync Compatibilty is "Coming Soon". I checked the release notes of 442.19 and while some monitors were added, the big Asus was not on the list. This lends to the idea that the "Coming Soon" part is current as of today.

    1. Does anyone else have this monitor yet and are you experiencing any flickering when G-Sync is active?

    2. Does anyone know if the PG43UQ will be addressed in the next driver release?

  2. #2
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    Configuration: 2080Ti, 144Hz, 10 bpc, G-Sync enabled for windowed and full screen modes.

    On 442.19: Haven’t noticed backlight flickering on my PG43UQ, per se. But if I’m in a game and alt-tab out, the display starts cutting out for a few seconds every thirty-ish seconds. It is possible that it’s just the backlight, as I haven’t looked closely enough to see if the image is still on the LCD. FWIW, I tried an XG438Q for a few weeks before this and did not experience any problems (besides mediocre contrast).

    I tried using 60Hz and 8 bpc (thinking it was maybe DSC, since the XG438Q was fine) and using another 8K DisplayPort cable (thinking I had just gotten a bad cable), but the issue remained. I was able to circumvent the issue by using an HDMI cable, which effectively disables any reason to own the PG43UQ. Typing this reply made me realize that the issue is probably G-Sync. I never tried 144Hz, 10 bpc, and no G-Sync, because the tearing would be insane, but I am curious if that would have resolved it.

    Either way, this morning I installed 442.50, which adds G-Sync compatibility for the PG43UQ (confirmed this in settings). I’ll follow up if I see the issue return on 442.50.

  3. #3
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    Quote Originally Posted by ncook06 View Post
    *this morning I installed 442.50, which adds G-Sync compatibility for the PG43UQ (confirmed this in settings). I’ll follow up if I see the issue return on 442.50.
    This is indeed still an issue on Nvidia driver 442.50

  4. #4
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    Still on 442.50, but it actually appears that this is related to playing in HDR. I am curious if the PG43UQ needs a firmware update, or if the issue is the Nvidia 442.50 driver misbehaving with HDR and DSC.

  5. #5
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    Watching a video and paused for a moment. Flashing black and flicks breifly to the image then black again for awhile. Pattern repeats until I turn on my second screen and turn Play games and apps in HDR of in Windows display settings. This was constant. First time it happened it did it 3-4times and when I turned HDR Off then on again it was fine.

    Did have to return my GPU the day after as I'd be getting crashes related to it. Myy old GT710 couldn't handle the 4k or HDR so wasn't an issue till I got a replacement GPU today. Even updated to the latest drivers. It's worse now. Least before I could get HDR to work again. Right now with HDR on I can't watch anything. Strange as it's been fine for over an hour just on desktop/web browser.

    Kept box as GPU was beck for testing so couldn't really test the display. I'd be tempted to return it but I'm not sure how that'd go ass we're on lock down and I don't know if the store is even open.............

  6. #6
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    Just stopped it flashing at me. Temporary till next time.

    1. Make sure video isn't fullscreen...Possible same for game.
    2. Turned Play HDR in games and apps off in Windows Display settings
    3. Lowered Refresh rate to 50hz
    4. Re-enabled Play HDR in games and apps off in Windows Display settings
    5. If flashing starts immediately turn ir off again and fullscreen then unfullscrreen video/game....Only had to do it once for me.
    6. Once Play HDR doesn't cause the flashing turn refresh back up to 144hz
    7 Hopefully that solves it.....least till tomorrow or a Firmware/Nvidia update

    Update*** Ok that didn't work. Happened again last night on step 4. Only thing that worked after turning HDR off was to unfullscreen video and turn HDR nits down to 600 then I could fullscreen video again without issues. Will see how it behaves being on 600 nits

    Some steps may not have been needed thats just what I did. Thankfully it worked or I would have installed older Nvidia driver.
    Last edited by Drayco31; 03-26-2020 at 07:23 AM. Reason: Possible temp fix didn't work

  7. #7
    ROG Guru: Orange Belt Array raju2529 PC Specs
    raju2529 PC Specs
    Laptop (Model)R542UQ-DM153 ( X542UQ.309 )
    MotherboardAsus Builtin Motherboard X542UQ
    ProcessorIntel core i5 7200u @2.5Ghz
    Memory (part number)Adata 2400 Mhz 16GB
    Graphics Card #1intel Hd 620 graphics 1GB DDR3 DCH WHQL driver v27.20.100.8425
    Graphics Card #2Nvidia GeForce 940MX 2GB GDDR5 DCH WHQL driver v27.21.14.5167
    Graphics Card #3nil
    Graphics Card #4nil
    Sound CardRealtek HD Audio controller with codec 294 WHQL driver v6.0.8975.1
    MonitorBuiltin Lcd monitor model BOE
    Storage #1Samsung 850 Evo 250GB SSD M.2. 2280
    Storage #2Seagate 2TB 2.5inch. Toshiba 1TB 2.5 inch
    CPU CoolerBuilt-in
    CaseFrom factory
    Power Supply65W
    Keyboard Built in keyboard
    Mouse Built in mouse
    Headset Purchased Philips HeadSet
    Mouse Pad nil
    Headset/Speakers Realtek Builtin Speakers
    OS Windows 10 Enterprise 64bit v2004 build no 19041.331
    Network RouterBsnl Wi-Fi modem with router
    Accessory #1 Dell Wired Mouse
    Accessory #2 Laptop Cooling table with fan
    Accessory #3 Secureye Usb finger print scanner added seperately for Windows Hello
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    nvidia released geforce dch standard based whql driver 445.75 on 24th march 2020

  8. #8
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    Quote Originally Posted by raju2529 View Post
    nvidia released geforce dch standard based whql driver 445.75 on 24th march 2020
    That's the one I'm using and the issue still persists

  9. #9
    ROG Guru: Orange Belt Array raju2529 PC Specs
    raju2529 PC Specs
    Laptop (Model)R542UQ-DM153 ( X542UQ.309 )
    MotherboardAsus Builtin Motherboard X542UQ
    ProcessorIntel core i5 7200u @2.5Ghz
    Memory (part number)Adata 2400 Mhz 16GB
    Graphics Card #1intel Hd 620 graphics 1GB DDR3 DCH WHQL driver v27.20.100.8425
    Graphics Card #2Nvidia GeForce 940MX 2GB GDDR5 DCH WHQL driver v27.21.14.5167
    Graphics Card #3nil
    Graphics Card #4nil
    Sound CardRealtek HD Audio controller with codec 294 WHQL driver v6.0.8975.1
    MonitorBuiltin Lcd monitor model BOE
    Storage #1Samsung 850 Evo 250GB SSD M.2. 2280
    Storage #2Seagate 2TB 2.5inch. Toshiba 1TB 2.5 inch
    CPU CoolerBuilt-in
    CaseFrom factory
    Power Supply65W
    Keyboard Built in keyboard
    Mouse Built in mouse
    Headset Purchased Philips HeadSet
    Mouse Pad nil
    Headset/Speakers Realtek Builtin Speakers
    OS Windows 10 Enterprise 64bit v2004 build no 19041.331
    Network RouterBsnl Wi-Fi modem with router
    Accessory #1 Dell Wired Mouse
    Accessory #2 Laptop Cooling table with fan
    Accessory #3 Secureye Usb finger print scanner added seperately for Windows Hello
    raju2529's Avatar
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    For laptops display monitor uses processor graphics driver. I am suspected driver caused flickering

    . Intel already 7870 dch based driver.
    But iam using advanced 7988 driver . No flickering.
    R542uq_dm153 laptop

  10. #10
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    Quote Originally Posted by raju2529 View Post
    For laptops display monitor uses processor graphics driver. I am suspected driver caused flickering

    . Intel already 7870 dch based driver.
    But iam using advanced 7988 driver . No flickering.
    R542uq_dm153 laptop
    Do you have an ROG PG43UQ monitor? I'm struggling to understand what your setup has to do with this thread.

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