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twometrebill
Known Participant
July 21, 2019
Answered

5K monitor on Windows - new performance problem

  • July 21, 2019
  • 3 replies
  • 1025 views

Periodically Nvidia has driver updates which quit supporting the HP Z27Q 5K monitor. Reverting to a previous driver or waiting a few days usually results in the release of a fix. However, about 4-6 weeks ago, Lightroom starting running very slowly on the 5K monitor but it runs fine on the Dell P2715Q 4K monitor. The lower color quality of the Dell monitor (yes, both monitors have been calibrated and re-calibrated) makes it undesirable to use the Dell with Lightroom. The Dell isn't bad but comparing images side by side puts down the Dell. Well to be fair, the HP was almost 4 times as expensive.

Latest software updates for everything AND no changes to Lightroom or monitor settings. Just drag Lightroom between the displays and it runs about 2-4 times as fast on the 4K monitor, depending on the slider.

System

HP Z440

6-core Xeon (3.6/4 GHz)

64GB RAM

dedicated NVMe and PCIe flash drives for Windows and Lighroom photo library and catalog

SATA SSDs for other Lightroom files

Quadro K1200

Windows 10 Pro 64 bit

If used monitors had any resale value, I'd sell the HP and get another 4K 99+% AdobeRGB monitor. Not a monitor problem, works fine on my wife's 4 year old iMac; not fast of course because iMacs are slow. But no issues.

Suggestions other than to replace the monitor?

Thanks,

Bill

    This topic has been closed for replies.
    Correct answer Ian Lyons

    Unless I've misunderstood your comments re the HP monitor, the issue would seem to be driver related rather than Lightroom. So, other than waiting for nVidia to ship a new driver that works well with the HP there is isn't a lot that can be done.

    3 replies

    GoldingD
    GoldingD
    Legend
    July 21, 2019

    Have you made sure that as a result of a GPU driver update that some of your GPU performance settings have been rolled back to default.

    Specifically the setting mentioned in the following:

    https://www.winhelp.info/boost-lightroom-performance-on-systems-with-nvidia-graphics-chip.html

    and any setting related to multiple monitors. (not running multiple, so no experience in that)

    like me in this annoying video:

    Dual Monitor Configuration | Nvidia - HP Support Video Gallery

    T
    twometrebillAuthor
    Known Participant
    July 22, 2019

    David,

    I've always run with the default settings as I'm not a gamer and settings are usually for games.

    A couple things I forgot to mention is that Lightroom slows down as I edit. First image is reasonably fast, second slower and by about the 20th I have to shutdown and restart Lightroom. This happens regardless of which monitor I'm using but is worse on the 5K monitor. Also the "Lightroom Preview Cache" is on its own SATA SSD set to 64GB.

    I'm going to try the following even though I've always used these settings.

    1. turn off "Replace embedded previews with standard previews during idle time"
    2. Convert all previews to 1:1 though from reading on the Lightroom site, this only helps the Library module

    Bill

    T
    twometrebillAuthor
    Known Participant
    July 22, 2019

    David,

    To my above reply, thanks for the links and I have updated Power management mode for the Nvidia driver to Prefer maximum performance.

    Regarding dual monitors, I should have mentioned that I do not run Lightroom in dual monitor mode as that is so slow that I could edit photos faster with a crayon. Lightroom is full screen on one or the other monitor

    Bill

    Todd Shaner
    Todd Shaner
    Legend
    July 21, 2019

    twometrebill  wrote

    The lower color quality of the Dell monitor (yes, both monitors have been calibrated and re-calibrated) makes it undesirable to use the Dell with Lightroom.

    Have you checked the HP monitor calibration recently? Windows updates have been know to hijack the display profile and assign a generic manufacturer's profile that is often incompatible with LR. I suggest assigning the Adobe RGB 1998 profile to the HP display as a quick test to rule out issues with both the currently assigned profile and your calibration display profile. Restart LR and see how it performs. Makes sure to test it with Preferences> Performance 'Use Graphics processor checked and unchecked and as the Primary display (not Secondary).

    T
    twometrebillAuthor
    Known Participant
    July 21, 2019

    Todd,

    Monitor calibration has nothing to do with performance.

    Adobe automatically assigns the graphics processor to the active Lightroom display.

    Windows and Lightroom have been started many times over the past few weeks since this problem occurred.

    Todd Shaner
    Todd Shaner
    Legend
    July 21, 2019

    twometrebill  wrote

    Monitor calibration has nothing to do with performance.

    I said, "as a quick test to rule out issues." That's what troubleshooting is all about. There have been reports of slow performance due to an incompatible or corrupt display profile. Did you even bother to try my suggestion?

    twometrebill  wrote

    Adobe automatically assigns the graphics processor to the active Lightroom display.

    Not if you have that Preference option unchecked! Did you try both checked and unchecked?

    twometrebill  wrote

    Windows and Lightroom have been started many times over the past few weeks since this problem occurred.

    That's of no help if you haven't also applied the recommended trouble-shooting steps.

    It's very possible the Windows 10 update installed both a new graphics driver AND display profile that are incompatible with each other and LR. The outlined troubleshooting steps I provided will very simply and quickly determine if that's the case or not, including any issues with your own calibration display profile.

    Ian Lyons
    Community Expert
    Ian LyonsCommunity ExpertCorrect answer
    Community Expert
    July 21, 2019

    Unless I've misunderstood your comments re the HP monitor, the issue would seem to be driver related rather than Lightroom. So, other than waiting for nVidia to ship a new driver that works well with the HP there is isn't a lot that can be done.

    T
    twometrebillAuthor
    Known Participant
    July 21, 2019

    Ian,

    You are probably right. Though the Nvidia and Windows update were packaged together, there is a lesser chance that it was something to do with Windows. A Lightroom update came through at the same time so there is always the possibility that Adobe caused the problem except for the lack of a problem with the 4K monitor.

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