Missing Excel Gridlines on Monitor

[John_P_H]

I’m having a frustrating graphics problem that I believe is related to the HDMI port of my computer and two monitors. The grid lines in Excel won’t show on the monitor that is connected to the HDMI port. They show on the VGA port. Switching monitors results in the monitor connecting to the HDMI port not showing the grid lines. I have tried switching out cable with no effect. Other than the missing grid lines, the monitors have expected color rendering and performance. If I screen shot or highlight a number of cells the lines become visible in highlight mode. Based on trouble shooting it appears to be related to the HDMI port and the interpreting the gray scale lines as white. I am at a loss how to proceed from here . Is this a hardware issue and if so can it be repaired. I have integrated Intel graphics card UHD Graphics 630 and an I7 processor.

[BeemerBiker]

Looks like hardware issue but since they show up when highlighting try changing the style and/.or color

https://support.microsoft.com/en-us/office/change-the-color-of-gridlines-in-a-worksheet-980f3978-91d...

border and line style look promising

[John_P_H]

The suggested solution works somewhat. There is no way to apply to the entire workbook but can change to be visible for individual sheets. I'm wondering if there is a repair that can be done without changing the motherboard or adding a seperate graphics card. 

[John_P_H]

One the third uninstall of the Intel graphics drivers the problems went away. At some point, I switched out the HDMI cable, which may have also be part of the issue.

[BeemerBiker]

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@John_P_H wrote:

One the third uninstall of the Intel graphics drivers the problems went away. At some point, I switched out the HDMI cable, which may have also be part of the issue.

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I am glad that solved the problem.  I had a similar situation my self:  My HDMI cable did not work well going through a right angle connector into an HDMI switch and then into that ARC input of a TV.  I swapped cables until I found one that worked.