nprimaux opened a new issue, #6456:
URL: https://github.com/apache/hop/issues/6456
### Apache Hop version?
2.16
### Java version?
OpenJDK Runtime Environment Zulu17.64+15-CA (build 17.0.18+8-LTS)
### Operating system
Linux
### What happened?
It's impossible to use the interface when I launch Hop-GUI on my open laptop
with an external screen plugged in.
When I try to visit the settings page, the tabs are invisible and an error
message appears in the terminal.
```
Error in the Hop GUI : Argument not valid
java.lang.IllegalArgumentException: Argument not valid
at org.eclipse.swt.SWT.error(SWT.java:4927)
at org.eclipse.swt.SWT.error(SWT.java:4861)
at org.eclipse.swt.SWT.error(SWT.java:4832)
at org.eclipse.swt.graphics.GC.drawImage(GC.java:882)
at org.eclipse.swt.graphics.GC.drawImage(GC.java:865)
at
org.eclipse.swt.custom.CTabFolderRenderer.drawUnselected(CTabFolderRenderer.java:1649)
at
org.eclipse.swt.custom.CTabFolderRenderer.draw(CTabFolderRenderer.java:647)
at org.eclipse.swt.custom.CTabFolder.onPaint(CTabFolder.java:2101)
at org.eclipse.swt.custom.CTabFolder.lambda$0(CTabFolder.java:338)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:91)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5884)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1656)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1682)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1665)
at org.eclipse.swt.widgets.Control.gtk_draw(Control.java:3898)
at org.eclipse.swt.widgets.Scrollable.gtk_draw(Scrollable.java:394)
at org.eclipse.swt.widgets.Composite.gtk_draw(Composite.java:507)
at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:2614)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:6864)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:6191)
at org.eclipse.swt.internal.gtk3.GTK3.gtk_main_do_event(Native Method)
at org.eclipse.swt.widgets.Display.eventProc(Display.java:1619)
at org.eclipse.swt.internal.gtk3.GTK3.gtk_main_iteration_do(Native
Method)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4537)
at org.apache.hop.ui.hopgui.HopGui.open(HopGui.java:496)
at org.apache.hop.ui.hopgui.HopGui.main(HopGui.java:374)
```
<img width="1834" height="723" alt="Image"
src="https://github.com/user-attachments/assets/e4956f33-0c88-4894-81a1-4e18f4fe2981";
/>
The GUI freezes whenever I do something on it (for example, trying to change
project or create environment).
Switching the software from one screen to another also causes the program to
freeze.
Possible workaround :
Close the laptop
### Issue Priority
Priority: 3
### Issue Component
Component: Hop Gui
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