Xfce Forum

gnychis

Member

Registered: 2021-02-25

Posts: 7

Windows flashing white when being redrawn, switching workspaces

Hi all, when I switch workspaces my windows are being redrawn which causes them to flash white.  Very rough on the eyes.  I've Googled this and have found a number of suggestions about turning the compositor off and on, and trying to change some graphics options.

I have a 6th Gen X1 Carbon which has an Intel graphics chipset.

Here is my graphics config:

Section "Device"
   Identifier  "Intel Graphics"
   Driver      "intel"
   Option      "TripleBuffer" "true"
   Option      "DRI"          "false"
   Option      "AccelMethod" "uxa"
   Option      "TearFree" "true"
EndSection

Please let me know when else I can share to help!

ToZ

Administrator

From: Canada

Registered: 2011-06-02

Posts: 11,486

Re: Windows flashing white when being redrawn, switching workspaces

Hello and welcome.

Which distro and version of Xfce are you running?

Have you tried using the modesetting driver instead of the intel driver (i.e. uninstall xf86-video-intel and use the built in driver)? If so, does it make a difference?

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gnychis

Member

Registered: 2021-02-25

Posts: 7

Re: Windows flashing white when being redrawn, switching workspaces

Thanks for the pointer, ToZ.  I am running Debian 10.7 and xfce 4.12

Here is some more info:

System:    Host: x1carbon Kernel: 4.19.0-13-amd64 x86_64 bits: 64 Desktop: Xfce 4.12.4 Distro: Debian GNU/Linux 10 (buster) 
Machine:   Type: Laptop System: LENOVO product: 20KHCTO1WW v: ThinkPad X1 Carbon 6th serial: <root required> 
           Mobo: LENOVO model: 20KHCTO1WW v: SDK0J40697 WIN serial: <root required> UEFI: LENOVO v: N23ET71W (1.46 ) 
           date: 02/20/2020 
Battery:   ID-1: BAT0 charge: 42.4 Wh condition: 56.1/57.0 Wh (98%) 
CPU:       Quad Core: Intel Core i7-8650U type: MT MCP speed: 799 MHz min/max: 400/4200 MHz 
Graphics:  Device-1: Intel UHD Graphics 620 driver: i915 v: kernel 
           Display: x11 server: X.Org 1.20.4 driver: intel resolution: 2560x1440~60Hz 
           OpenGL: renderer: llvmpipe (LLVM 7.0 256 bits) v: 3.3 Mesa 18.3.6 
Network:   Device-1: Intel Ethernet I219-LM driver: e1000e 
           Device-2: Intel Wireless 8265 / 8275 driver: iwlwifi 
Drives:    Local Storage: total: 953.87 GiB used: 13.85 GiB (1.5%) 
Info:      Processes: 223 Uptime: 1d 6h 57m Memory: 15.42 GiB used: 2.25 GiB (14.6%) Shell: bash inxi: 3.0.32 

It looks like the intel driver is being used, but I don't seem to have xf86-video-intel installed.  Going to try removing the intel xorg config and see if that stops it from loading.

gnychis

Member

Registered: 2021-02-25

Posts: 7

Re: Windows flashing white when being redrawn, switching workspaces

removing the intel config and restarted, now I see graphics modesetting and the problem is gone, thank you!!

gnychis

Member

Registered: 2021-02-25

Posts: 7

Re: Windows flashing white when being redrawn, switching workspaces

One more issue related to this.  After switching to the modesetting driver I get a lot of tearing watching videos and scrolling. I tried setting compositing on, synchronizing to vblank, no luck.  Would greatly appreciate any help again.