[Interest] QMessageBox not displayed when monitor is switched off

[Patrick ZAJDA]

Hi,


Le 10/12/2024 à 15:56, Thiago Macieira a écrit :
> On Monday 9 December 2024 12:31:38 Brasilia Standard Time Patrick ZAJDA wrote:
>> I am simply seeking guidance on whether this issue can be considered a
>> valid bug in Qt itself and, if so, the proper way to report it.
>> Of course, if a workaround exists, I am absolutely open to applying it.
>> However, I still believe this issue represents a regression in Qt6.
> Please also include the output of xrandr while the screen is off and please
> explain what you mean by "off". My first reaction was that it was powered down /
> in stand-by mode, but your talking about xrandr indicates you've probably
> removed it from the list of active displays. If you've disabled all outputs,
> then it stands to reason that there is no display for Qt to display anything
> on.
>
>
xrandr output is as follow when screen is off:
Screen 0: minimum 8 x 8, current 1440 x 900, maximum 16384 x 16384 
DVI-I-0 connected primary (normal left inverted right x axis y axis) 
1440x900 59.89 + 74.98 1280x1024 75.02 60.02 1024x768 75.03 70.07 60.00 
800x600 75.00 72.19 60.32 56.25 640x480 75.00 72.81 59.94 DVI-I-1 
disconnected (normal left inverted right x axis y axis) HDMI-0 
disconnected (normal left inverted right x axis y axis) HDMI-1 
disconnected (normal left inverted right x axis y axis) DVI-D-0 
disconnected (normal left inverted right x axis y axis)

The screen is switched off using
xrandr --output $output --fb $screenSize --off

Display name is got using:
output=$(xrandr | grep ' connected ' | awk '{print $1}' | head -1)

The ScreenSize variable is:
screenSize=$(xrandr | awk 'BEGIN {foundOutput=0}
    / '$output' / {foundOutput=1}
    /\*\+/ {print $1}
   /^[^ ]/ {if(foundOutput) exit 0}')
echo $screenSize >> /tmp/montog

To switch back on:
xrandr --output $output --auto

Only QMessageBox are making this issue occur.

Hop this helps,

Patrick

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-- 
Patrick ZAJDA
<https://certification.nvaccess.org/>Logo certification NVDA expert 2022
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