Cannot see plot with qt graphics_tool kit on octave-6.4.0

Wed Jun 29 23:47:05 GMT 2022

> ----- Original Message -----
> I cannot see a plot with qt graphics_toolkit.
>> >> graphics_tookit qt;
> >> plot(1:10);
>> plot window is filed with black.
>> I met this on two different PCs.
>> On one PC,
> >> plot(1:10);
> Xlib: sequence lost (0x11a61 > 0x1a63) in reply type 0x0!
> Xlib: sequence lost (0x11a76 > 0x1a78) in reply type 0x0!
> Xlib: sequence lost (0x11ab4 > 0x1ab6) in reply type 0x0!
> Xlib: sequence lost (0x11afc > 0x1afe) in reply type 0x0!
> Xlib: sequence lost (0x11b12 > 0x1b14) in reply type 0x0!
>> But on the other PC, the above messages do not appear.
If I start X server program without windows native openGL graphics.
If I do not set LIBGL_ALWAYS_INDIRECT environmenatal variable.
I can see the plot on qt graphics_toolkit
Tatsuro