DisplayCAL don’t have access to the VideoLUT

Hi, guys.

I’m posting this here because my topic on DisplayCAL forum is waiting moderation for almost 3 weeks now. If someone can help me solve the following problem, I would appreciate.

I tried to apply a profile in my external monitor and I had the following error: “ArgyllCMS: Dispwin: Error – We don’t have access to the VideoLUT for clearing”.

OS: Fedora 34 with KDE Plasma

Graphics Card: AMD Radeon™ Graphics Vega 7

Monitor plugged via: HDMI

Log:

displaycal 3.8.9.3 2019-12-14T12:16:22.165507Z
x86_64
Python 2.7.18 (default, Mar 31 2021, 08:53:31)
[GCC 10.2.0]
Faulthandler 3.2
wxPython 4.0.7.post2 gtk3 (phoenix) wxWidgets 3.0.5
Encoding: UTF-8
File system encoding: UTF-8
Lockfile /home/a42578/.var/app/net.displaycal.DisplayCAL/config/DisplayCAL/DisplayCAL.lock
Starting up…
SDL2: libSDL2-2.0.so.0
SDL2_mixer: libSDL2_mixer-2.0.so.0
Audio module: SDL 2.0
Enumerating display devices and communication ports…
/app/bin
ArgyllCMS 2.1.2
Argyll has virtual display support
…ok.
Checking video card gamma table access for display 1…
…ok.
Initializing GUI…

…ok.
Ready.
Setting up scripting host at 127.0.0.1:15411
Check for application update…
DisplayCAL is up-to-date.
Loading calibration curves from file…
/home/a42578/.var/app/net.displaycal.DisplayCAL/data/DisplayCAL/storage/XWAYLAND3 #1 2021-05-25 15-06 2.2 F-S XYZLUT+MTX/XWAYLAND3 #1 2021-05-25 15-06 2.2 F-S XYZLUT+MTX.icc
…ok.
ArgyllCMS is up-to-date.
——————————————————————————–
Install profile
——————————————————————————–
Session log: XWAYLAND3 #1 2021-05-25 15-06 2.2 F-S XYZLUT+MTX

Working directory:
/
tmp/
DisplayCAL-3LtCyO/

Command line:
/app/bin/dispwin
-v
-ddummy
-c
-I
‘XWAYLAND3 #1 2021-05-25 15-06 2.2 F-S XYZLUT+MTX.icc’

Created dummy window
Dispwin: Error – We don’t have access to the VideoLUT for clearing
dispwin exitcode: 1

┌──────────────────────────────────────────────────────────────────────────────┐
│ The profile could not be installed/activated. │
└──────────────────────────────────────────────────────────────────────────────┘

Thanks in advance.

Looks like you’re running wayland-- there is no working color management in Wayland.

If you want color management, use X11.

1 Like

Thanks for the help. I switched to X11 and everything worked just fine.

Any perspective for when color management will be available in Wayland?

I don’t know. There is a thread here that is quite long about it, but didn’t seem to go anywhere.

1 Like

Ok, thanks for the info.