Linux Lite Forums

Since I recently updated and upgraded my system to Linux Lite 7.8, there has been a problem with Lite Updates. When I open it, it just shows a blank white window (as pictured in the screenshot).

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I suspect this issue might be related to the re-write the application received in 7.8 (as mentioned in the Release announcement).

Also, here is a screenshot of what the taskbar now looks like when Lite Updates is open, in case that helps.

[attachment=322]

Please could you help solve this issue.

Have you made any changes to the Desktop theme ?

I think that the blank window should look something like this.





On your system, if you click where the 'Cancel' text would be expected, does the blank window close ?

Retry the update but try clicking to the right where the 'Continue' text should be and report back.

My desktop theme is Materia-dark, which I'm pretty sure is just the dark version of the default theme.

When I click where 'Cancel' should be on the window, it does close, and when I click where 'Continue' should be, it opens a window for me to authenticate and starts loading.

Once I authenticate, it loads and checks for updates and then shows them in a list like this:

[attachment=325]

What's weird is that when I scroll down, the "Linux Lite Updates" window title, and the words "Cancel" and "Update Now" on the buttons, disappear:

[attachment=327]

They do reappear if I scroll back up.

I think it's also relevant to for me to mention that I have this problem with other apps of the same graphical "style", for example Lite Software (since the upgrade/rewrite) and calculator (for a longer period of time). With these sorts of apps, text, and characters etc. will be missing, but they will appear if I drag my cursor over them.

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From the fact that I can still interact with all these windows (like cancelling/continuing in Lite Updates), I guess that this is a purely graphical/display issue. Possibly a problem with GTK and/or the graphics card driver?

In case this information helps, here's my graphics card and driver:

GPU: NVIDIA GeForce GT 710 [Discrete]

Driver: NVIDIA Driver 470.256.02

Please can you open a terminal by pressing Ctrl, Alt and T together.

Ensure the terminal is set to allow scrollback.
Click 'Edit', then 'Preferences'
In the panel that opens, under the 'General' tab, ensure 'Unlimited Scrollback' is checked.
Close the 'Terminal Preferences' panel.

In the terminal window itself type in the command below followed by Enter.

This will start the update/upgrade process GUI.
The terminal will display information about what is happening while the GUI runs.

When the blank Update window is visible, go to the terminal and click 'Edit' then 'Select All' to highlight all the terminal output.

With all the text highlighted, click 'Edit' then 'Copy' to copy all the messages to the clipboard.
Paste the copied text from the clipboard into the thread so we can see what messages were reported.

I did some of my own research and found that this is a known issue with the NVIDIA 470 graphics driver and GTK (see this NVIDIA Developer Forums thread to learn more).

I used the recommended solution of adding
to /etc/environment and then restarting my PC, and now the problem seems to be fixed and all the apps seem to display properly now. For example, here's what Lite Updates looks like now:

[attachment=331]

Also, I did what you asked with the terminal both before and after using the above solution, and both times the only output was similar:

Before:

After: