BUG: PhotoLab will not start on 5K monitors

DxO PhotoLab
1

Hi,

I’m a long time user of dxo (since version 4!). But since dxo Optics Pro 10 I cannot launch DxO on my 5K monitor. When I launch DXO I get the error “Direct X9 incorrectly installed”. However the bug has nothing to do with direct X9.
Changing my monitor resolution to 4K solves the issue.

I reported the problem to the dxo team in 2016 but the problem is still there: I tried dxo Optics Pro 11, DXO Photolab 1 and 2 and always the same problem.

I am documenting this here to help people running dxo on hi-res monitors: you will need to switch the resolution down while you run dxo. This bug does not seem to be documented anywhere when I google the problem.

1 Like
2

DPL 2 runs nicely on my 2019 iMac Retina 5K computer. The resolution does not seem to be the cause of your issues but an other link in the processing chain?

3

Thanks @platypus for documenting your experience here.
I’m running on Windows so perhaps this explains why it works on your end and not mine.

4

I´m running DXO PL 2 on a 5K screen… Never experienced the Direct X9 error so far.

5

Thanks @Philip_MUC : is this on Windows or MacOS?

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@fotoloco,
I’m more curious to hear about your hardware and OS

Windows x??
What GPU?
What drivers is that running. Have you tried an earlier or later version?

7

Hi,

What perhaps is special in my config is that I have 3 monitors connected: 5K, 4K and 2560px.
The problem is always fixed when I change the 5K monitor to 4K definition.

I’m using Windows 10 x64.
GPU: was using AMD Fury. Now I’m using Nvidia GTX 1080ti.

The exact error I get is:
“DXO Optics Pro was unable to start, this is usually because direct X9 is not properly installed…”

When I raised the ussue with DXO in 2016 they responded: “we have an incompatibility bug with 5K+ screens”