Strange wallpaper after 23.5 Update

[wbrells]

All these deletes might fix the wallpaper problem, but this solution seems a bit extreme and might "mess up" my desktop in other ways. I was hoping that the above listings from xfconf-query -c xfce4-desktop --list -v might reveal a few settings that are causing the problem.

[CharlesV]

The two cache files may change something, but its cache so it is temporary anyway. (ie delete )

The other files you can move to a backup location and if there are issues caused by them and you want to revert, move them back after testing.

[wbrells]

I notice that my HDMI display is not being detected:

xrandr --listproviders
Providers: number : 0

However, when run via the live USB flash drive (created from a snapshot made just a few days ago) this command shows 1 provider and give details about my monitor!

I'm very confused and just about ready to give up trying to fix this wallpaper problem!

[wbrells]

A MAJOR CLUE! I think that I've discovered the root cause of my wallpaper problem. It seems that the problem arises because of having the wrong driver being used to support the integrated Intel graphics used on my Beelink system (and many others). Using the inxi -G command:

On the "problem" system the relevant output under Graphics is:

Display: x11 server: X.Org 1.21.1.7 driver: loaded: fbdev resolution: 1920x1200

while on the system with correct wallpaper:

Display: x11 server: X.Org 1.21.1.7 driver: loaded: modesetting unloaded: fbdev,vera resolution: 1920x1280-60Hz

(The different resolutions are because the otherwise identical systems are using different monitors.)

Can someone suggest how to force the problem system to use the proper driver?

Thanks, Wayne

[dolphin_oracle]

hmm fbdev is a fallback driver that uses the framebuffer for displays. was this system installed with one of the "failsafe" boot options on the live system? if so, there should be a /etc/X11/xorg.conf file that you could remove. however, that might give no display at all. If there is a file, I would back it up

Code: Select all

sudo cp /etc/X11/xorg.conf /etc/X11/xorg.conf.backup

so it can be restored later if need be.

alternatively, you could try using mx-tweak to force the "intel" driver. there is an option for that.

[wbrells]

Using MX-Tweak to force the Intel driver did restore the ability to specify a wallpaper. UNFORTUNATELY, that driver also caused an unacceptable amount of display "tearing" (as has been noted by other users). The best solution would seem to have modesetting loaded and fbdev & vesa unloaded. I'm just not sure how to accomplish that!

Wayne

[wbrells]

SOLUTION FOUND!

My wallpaper problem has finally been resolved. The solution was to force the use of the modesetting driver as detailed below. (I don't know why this "patch" became necessary since the wallpaper was working fine on its own until quite recently.) In any case, this is how I solved the problem:

1) In MX-Tweak check the option to force the Intel graphics driver to be used. This will add the file /etc/X11/xorg.conf.d/20-intel.conf with the appropriate commands. Unfortunately, using the intel driver leads to a jittery image with lots of "tearing".

2) To force the use of modesetting (and eliminate the image problems) modify the 20-intel.conf file to be:

Section "Device"
Identifier "Intel Graphics"
# Driver "intel"
Driver "modesetting"
# Option "AccelMethod" "uxa" #could also use the default "sna"
Option "TearFree" "true"
EndSection

After rebooting the system all should be well AND wallpapers can be selected as desired. For reference, the inxi -G command now gives:

Graphics: Device-1: Intel Alder Lake-N [UHD Graphics] driver: i915 v: kernel
Display: x11 server: X.Org 1.21.1.7 driver: loaded: modesetting unloaded: fbdev
resolution: 1920x1200~60Hz
OpenGL: renderer: Mesa Intel Graphics (ADL-N) v: 4.6 Mesa 24.2.8-1mx23ahs

Again, I'm not sure why this problem developed, but perhaps the solution given above may help anyone else with a similar problem.

Wayne