I never want to restart Spyder when the display dpi changes

Description

What steps will reproduce the problem?

Spyder asks me when connecting or disconnecting my second monitor to restart because the dpi changed.

Both internal lapotp, as well as external are 1080p. The external one is connected via HDMI to a dock which connects via Thunderbolt to my laptop. The windows scaling setting for both monitors is 100%

No spyder setting (automatic, personal or fixed dpi) seem to prevent this dialog and it is very annoying. It also appears when awaking my pc from sleep.

A soulution could be “hide this dialog for ever” instead of hide this dialog for the current sesseion

Versions

• Spyder version: 4.1.3
• Python version: 3.7.7
• Qt version: 5.9.6
• PyQt5 version: 5.9.2
• Operating System: Windows 10

Dependencies

# Mandatory:
atomicwrites >=1.2.0           :  1.4.0 (OK)
chardet >=2.0.0                :  3.0.4 (OK)
cloudpickle >=0.5.0            :  1.4.1 (OK)
diff_match_patch >=20181111    :  20181111 (OK)
intervaltree                   :  None (OK)
IPython >=4.0                  :  7.13.0 (OK)
jedi =0.15.2                   :  0.15.2 (OK)
nbconvert >=4.0                :  5.6.1 (OK)
numpydoc >=0.6.0               :  0.9.2 (OK)
paramiko >=2.4.0               :  2.7.1 (OK)
parso =0.5.2                   :  0.5.2 (OK)
pexpect >=4.4.0                :  4.8.0 (OK)
pickleshare >=0.4              :  0.7.5 (OK)
psutil >=5.3                   :  5.7.0 (OK)
pygments >=2.0                 :  2.6.1 (OK)
pylint >=0.25                  :  2.5.0 (OK)
pyls >=0.31.9;<0.32.0          :  0.31.10 (OK)
qdarkstyle >=2.8               :  2.8.1 (OK)
qtawesome >=0.5.7              :  0.7.0 (OK)
qtconsole >=4.6.0              :  4.7.3 (OK)
qtpy >=1.5.0                   :  1.9.0 (OK)
rtree >=0.8.3                  :  0.9.4 (OK)
sphinx >=0.6.6                 :  3.0.3 (OK)
spyder_kernels >=1.9.1;<1.10.0 :  1.9.1 (OK)
watchdog                       :  None (OK)
zmq >=17                       :  18.1.1 (OK)

# Optional:
cython >=0.21                  :  None (OK)
matplotlib >=2.0.0             :  3.1.3 (OK)
numpy >=1.7                    :  1.18.1 (OK)
pandas >=0.13.1                :  1.0.3 (OK)
scipy >=0.17.0                 :  1.4.1 (OK)
sympy >=0.7.3                  :  None (OK)

[ccordoba12]

I’m not sure, so we need to check. Maybe we can check what the signal is retrieving and add a more in specific validation to trigger the dialog only on resolution/scale change and not in number of screens change.

Ok, please work on that for 4.1.4. If you find that’s really not possible (or too hard to do), then please implement your proposed improvement to the message dialog we’re showing at the moment.

[dalthviz]

I really like this suggestion!

👍

Does Qt really have a correct way to detect this? (I thought it doesn’t).

I’m not sure, so we need to check. Maybe we can check what the signal is retrieving and add a more in specific validation to trigger the dialog only on resolution/scale change and not in number of screens change.