HUGE scaling issue on Nvidia and KDE environment

WOW
garuda by default is seeing him in settings tab
i have to try a microphone (i had TOO MUCH problems with this audio interface on manjaro)

For the audio issue you'd need to open up another thread for that, otherwise tracking of issues will be a mess. :smiley:

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okay, now i'm not getting any sound from my headphones... the same like in manjaro...
is working for a while and it died.

Some explanations for future readers and possibly OP better application of the solution.

  • Screen resolution is correct (two monitors side by side)
  • Notice the actual recognized-as monitor dimensions!!
  • While Mon-2 looks fine (48cm x 27cm - 21"), Mon-1 looks like a large… smartphone :rofl: (16cm x 9 cm - 7"). I guess it’s not true(??):stuck_out_tongue_winking_eye: These are not rare issues with Xorg <==> EDID misunderstandings.
  • SDDM is probably set to use auto-HiDPI scaling.
  • Xorg thinks/serves Mon-1 as HiDPI and SDDM… believes him! :cry:

There are two possible approaches, that one or both could work, but sometimes are difficult to configure. Use the easiest successful one.

  • Fix/correct Xorg monitor-1 resolution/dpi/modeline, using an xorg conf file in /etc/X11/xorg.conf.d/monitor-dp-1.conf with a proper Section Monitor.
  • Fix SDDM configuration, changing HiDPI to disabled
[X11]
EnableHiDPI=false

and/or

  • adding a working dpi value at Xorg server flags (as was successfully advised by @FGD )

…but… using the proper/suggested drop-in file in

/etc/sddm.conf.d/hidpi.conf

and deleting /etc/sddm.conf, which is deprecated and used as fallback (overrides all drop-in settings).


Once again, always check Archwiki for proper guidance, instead of random (years old :wink: ) forum/web advice.
Keep up the good work @FGD :+1:

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There is absolutely nothing :joy:

I don't see what's funny about it, so I'm closing this already solved post.

Of course not. If you choose this method, you would create it, with proper contents, following Archwiki instructions.
As I said…

4 Likes