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#1 2020-07-13 05:26:20

pizzahameha
Member
Registered: 2020-07-13
Posts: 2

3/4 of display is blank when logging in with 4k (3840x2160) resolution

Hi there,

I've encountered an issue where when I log into my Xfce desktop on my Manjaro Linux installation, my screen mysteriously doesn't display 3/4 of the picture.
I'll attach a photo here: afterloggingin

In order to fix this, what I do is use 'xfce4-display-settings' to manually change my resolution to 1080p (1920x1080), and then I again change it back to 4k (3840x2160).

Once it's changed from 1080p to 4k, I can then see my entire desktop properly: afterchangingfrom1080p


Logically, this might have something to do with Xfce thinking that I'm trying to log in with a 1920x1080 resolution, as it's only displaying a fourth of my screen, and 4k is 4 times as large as 1920x1080. I'm not sure if that might have anything to do with the issue, though.

Thank you for any help and suggestions.

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#2 2020-07-13 06:53:13

pizzahameha
Member
Registered: 2020-07-13
Posts: 2

Re: 3/4 of display is blank when logging in with 4k (3840x2160) resolution

Update: I've found a workaround solution via resetting the vblank on login.

I did this by using the 'Session and Startup' Xfce application, going to the 'Application Startup' tab, and inputting this as the command:

xfwm4 --vblank=glx --replace

With this, my desktop displays without issues when I log in.

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#3 2020-07-13 10:31:17

ToZ
Moderator
From: Canada
Registered: 2011-06-02
Posts: 6,874

Re: 3/4 of display is blank when logging in with 4k (3840x2160) resolution

Hello and welcome.

You make glx the vblank default. See https://forum.xfce.org/viewtopic.php?id=13233.

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