Cursor becomes slow when hovering over an image and panning is laggy (NEW VIDEO)

starhopper

Well-known member
Jul 19, 2012
60
0
Germany
www.starhopper.eu
It probably is, but it's not the combo of Windows Game Mode + the v-sync on the card setting because both are disabled and it is still slow moving the cursor over the image. System is an AMD 1920x threadripper + Radeon RX 570 video card + ASRock x399 motherboard. Windows 10 Pro.
Hallo guyroch, hello forum,

I have to agree. My Win10 machine (PI 1.8.8-5) has a NVIDIA (GeForce GTX 750 Ti DriverVersion 432.00) card and I am also suffering from a small but disturbing lag. Disabling game mode and disabling v-sync as discribed does not fix it.

My Linux Workstation with PI 1.8.8-4 does not have this lag.
Code:
System:
  Host: shark Kernel: 4.15.0-96-generic x86_64 bits: 64 compiler: gcc
  v: 7.5.0 Desktop: Cinnamon 4.2.4 Distro: Linux Mint 19.2 Tina
  base: Ubuntu 18.04 bionic
Graphics:
  Device-1: NVIDIA GP107 [GeForce GTX 1050] vendor: Gigabyte driver: nvidia
  v: 390.116 bus ID: 01:00.0
  Display: x11 server: X.Org 1.19.6 driver: nvidia
  unloaded: fbdev,modesetting,nouveau,vesa resolution: 3840x1600~60Hz
  OpenGL: renderer: GeForce GTX 1050/PCIe/SSE2 v: 4.6.0 NVIDIA 390.116
  direct render: Yes
 

Juan Conejero

PTeam Member
Sep 2, 2004
7,402
67
56
Valencia, Spain
pixinsight.com
My Linux Workstation with PI 1.8.8-4 does not have this lag.
Which demonstrates that this is a machine-specific, driver-specific issue. The most probable cause for this problem on Windows is input lag caused by v-sync, Adaptive VSync and/or G-SYNC, the latter two specific to GeForce cards.

I am sorry for not being able to offer a solution. Please understand that I cannot offer a solution for every possible issue caused by multiple hardware and driver combinations and configurations. This problem cannot be reproduced under normal conditions on any of our machines, but should be solvable with appropriate video driver settings.
 

guyroch

Member
Jun 22, 2012
16
0
Can someone please list their graphics cards where this is not an issue? This is driving me crazy and I can't fix it with my Radeon 570 RX despite any setting I try.

I have all of these software on that PC an none have this slow behavior when I move the cursor over an image.

Nebulosity => non-issue
Photoshop => non-issue
MaximDL => non-issue
AstroPixelPreprocessor => non-issue

PixInsight => issue


Guylain.
 

guyroch

Member
Jun 22, 2012
16
0
Here is what I don't understand with Juan's comment claiming this is not a Pix issue.

I tried older versions and it seems like this started between 1.8.8 (2019-11-08) and PixInsight 1.8.8-3 (2019-12-16). This confirms something in Pix changed that is causing this.

PixInsight 1.07.00.0697 (2011-06-01) -> non-issue
PixInsight 1.08.00.0963 (2013-01-24) -> non-issue
PixInsight 1.08.02.1098 (2014-06-24) -> non-issue
PixInsight 1.08.03.1123 (2014-11-18)-> non-issue
PixInsight 1.08.04.1195 (2015-12-18) -> non-issue
PixInsight 1.08.05.1353 (2017-08-09) -> non-issue
PixInsight 1.08.06.1473 (2019-05-14) -> non-issue
PixInsight 1.8.7 (2019-09-30) -> non-issue

PixInsight 1.8.8 (2019-11-08) -> non-issue
PixInsight 1.8.8-2 (updated inside Pix from 1.8.8) -> non-issue ::: QT 5.13.2

<<< something happened between these 2 releases >>>

PixInsight 1.8.8-3 (2019-12-16) -> issue ::: QT 5.13.2


PixInsight 1.8.8-4 (2020-01-26) -> issue
PixInsight 1.8.8-5 (2020-02-28) -> issue

Guylain
 
Last edited:

pfile

PTeam Member
Nov 23, 2009
5,298
63
since you have all those versions and can run them, check the version of Qt in each one. (Resources > Qt version...)

more than likely you'll see the change is related to the version of Qt. that's my guess anyway.

rob
 

guyroch

Member
Jun 22, 2012
16
0
I updated my post above.

Both 1.8.8 and 1.8.8-3 have the same QT 5.13-2 version.

I ran the update inside Pix 1.8.8 to and it auto-updated to 1.8.8-2. Pix 1.8.8-2 does not have the issue. I updated my post above to reflect this.

So the issue was introduced in 1.8.8-3 and it is not related to QT since when both 1.8.8-2 and 1.8.8-3 have QT 5.13.2.

Guylain
 
Last edited:

pfile

PTeam Member
Nov 23, 2009
5,298
63
well that is unexpected since the root of most of these problems is Qt. but that's a good datapoint. i suppose there is probably compile-time and runtime configuration of Qt that might make the difference here.
 

rbarbout

New member
May 25, 2020
1
0
Any news on this subject ?
I have the same problem with PI 1.8.8-5 and GTX1060 (Win10).
Disabling v-Sync did not solve the problem.
I can see an improvement if I disable the display of cursor position and pixel values on bottom bar.
So it seems that reading the data from the image to display it on status bar is time consuming on my configuration.
 

Juan Conejero

PTeam Member
Sep 2, 2004
7,402
67
56
Valencia, Spain
pixinsight.com
This is a machine-specific issue that cannot be reproduced under normal working conditions on any supported platform. Unfortunately, there is nothing we can do to solve it. It is an anomaly that we are not causing and should be fixable through hardware changes and/or driver configuration settings.