search

hughsie / colord

Making color management just work
GNU General Public License v2.0
75 stars 51 forks source link

How to debug device not being detected? #173

Closed imax9000 closed 2 months ago

imax9000 commented 2 months ago

colord 1.4.6 doesn't detect my laptop's display. Where do I start figuring out why?

colormgr get-devices is only listing a network printer. journalctl -u colord shows only generic start/stop messages. man colord doesn't exist.

Is there anything I can do short of straceing the daemon while it's running under systemd?

hughsie commented 2 months ago

Where do I start figuring out why?

What distro and desktop are you using?

imax9000 commented 2 months ago

Where do I start figuring out why?

What distro and desktop are you using?

KDE neon, based on Ubuntu 22.04. With KDE 6.0 running on Wayland.

imax9000 commented 2 months ago 
% dpkg -l | grep colord
ii  colord                                              1.4.6-1                                                      amd64        system service to manage device colour profiles -- system daemon
ii  colord-data                                         1.4.6-1                                                      all          system service to manage device colour profiles -- data files
ii  colord-kde                                          24.08.0-0zneon+22.04+jammy+release+build1                    amd64        Color management for KDE
ii  libcolord2:amd64                                    1.4.6-1                                                      amd64        system service to manage device colour profiles -- runtime
imax9000 commented 2 months ago

strace it is then?

sigh I've had different plans for today...

hughsie commented 2 months ago

I think you'll need to open an issue against colord-kde in the KDE project I'm afraid, I'm only familiar with colord and the GNOME integration.

imax9000 commented 2 months ago

What does colord-kde have to do with the lack of troubleshooting tools in colord?

hughsie commented 2 months ago

What does colord-kde have to do with the lack of troubleshooting tools in colord?

colord-kde creates the display devices. Does it work if you use GNOME?

imax9000 commented 2 months ago

What does colord-kde have to do with the lack of troubleshooting tools in colord?

colord-kde creates the display devices. Does it work if you use GNOME?

Hm, good to know. Is this fact documented anywhere? Is it referenced in the man page?

imax9000 commented 2 months ago

sigh I guess it's straight up not implemented.

kded6[14308]: colord: X11 not detect disabling

But don't get me wrong: I opened this issue not to figure out what's wrong on my particular machine. I opened it to figure out what tools does colord provide for doing even basic troubleshooting, and there seems to be none at all, not even a description of what it is and isn't responsible for.

If not for your last comment, I, an ordinary user, would have to spend many hours reading strace dumps and your source code just to understand that colord doesn't do any device detection on its own and I need to look elsewhere. It is already frustrating that I needed to contact you for that and wait for 4 days. It would be orders of magnitude more frustrating if I had already wasted many hours of my life on an ultimately pointless exercise of reading your code.

hughsie commented 2 months ago

So you just want me to feel bad about not having those specific tools or manpage sections? I'm not really sure what you want me to do; users are not supposed to debug anything, it's supposed to just work. Maybe try GNOME -- that should just work.

I can't possibly be responsible for the KDE integration as I don't even use KDE and it's not something we really support at Red Hat. I think you need to file a bug in the KDE project now.

imax9000 commented 2 months ago

I don't care how you feel (sorry). I want a service that is running on my machine to provide tools for introspection and troubleshooting.

No software in the known universe "just works". All software sucks and fails all the time. If I wanted to use something that either works or doesn't and I have no way to fix it - I'd be still running Windows with Cygwin on top.

Yes, the bug for the lack of support on Wayland is definitely going to be for KDE, not for you.

Absence of troubleshooting tools in colord is still a problem thought, and it's not related to any other software project.

imax9000 commented 2 months ago

Consider this: if a basic verbose logging was present that would point me to colord-kde not creating a device inside colord - I wouldn't even have to bother you at all, and would go straight to colord-kde

hughsie commented 2 months ago

I don't care how you feel

Then I can no longer help I'm afraid.