KDE Plasma login service failed - login loop in SDDM
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When I log in to my laptop with Kubuntu 20.10, I enter the password and wait for the desktop window to load but it does not show and it returns me to the initial login window. I ran the test several times thinking that you had misspelled the password but got the same result.
Using CTRL + ALT + F2 I enter a console and log in without problems. From there I started the server x (startx command) and I was able to enter the desktop. Since when I log in with the password it seems for a few seconds that it is loading the desktop but in the end it returns me to the login window again I tried with this tutorial https://letsfoss.com/ubuntu-20-04-login-loop-fix/ but the problem persist I use the command journalctl -b -u sddm for view the proccess of display manager and the log is:
Which route of validations should you review in order to find the solution since I have run out of ideas |
Manager
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Which Kernel is this? I had problems with the latest -31 kernel to log in, using the previous one (-29) helped. If yes, please report this to Launchpad as it is a kernel bug.
FWIW: I had problems once or twice only, since today everything works as it should, so maybe check the latest updates.
Running Kubuntu 22.10 with Plasma 5.26.3, Frameworks 5.100.0, Qt 5.15.6, kernel 5.19.0-23 on Ryzen 5 4600H, AMD Renoir, X11
FWIW: it's always useful to state the exact Plasma version (+ distribution) when asking questions, makes it easier to help ... |
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Registered Member
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Thanks for the recommendations, I just used the command uname -a and I can see that the update is dated November 23, so I don't think that's the problem. Anyway, could you tell me a link on how to report this to Launchpad as a kernel bug. I am relatively new to Linux.
Linux laptop 5.8.0-31-generic #33-Ubuntu SMP Mon Nov 23 18:44:54 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux My laptop have: KDE PLASMA: 5.19.5 - KDE FRAMEWORK: 5.74.0 - Qt. 5.14.2 (AMD Ryzen 5 3500 Radeon vega Mobile GFX) Thank you. |
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Registered Member
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Thanks for the recommendations, I just used the command uname -a and I can see that the update is dated November 23, so I don't think that's the problem. Anyway, could you tell me a link on how to report this to Launchpad as a kernel bug. I am relatively new to Linux. Linux laptop 5.8.0-31-generic #33-Ubuntu SMP Mon Nov 23 18:44:54 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux My laptop have: KDE PLASMA: 5.19.5 - KDE FRAMEWORK: 5.74.0 - Qt. 5.14.2 (AMD Ryzen 5 3500 Radeon vega Mobile GFX) Thank you. |
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Manager
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Does it still fail repeatedly? There have been updates in the last few days, and as I said, I had this problem only once or twice, so it's unlikely to be a kernel problem, currently the -31 kernel works quite well.
Do you use a default installation or have you made changes, if yes, which ones?
Running Kubuntu 22.10 with Plasma 5.26.3, Frameworks 5.100.0, Qt 5.15.6, kernel 5.19.0-23 on Ryzen 5 4600H, AMD Renoir, X11
FWIW: it's always useful to state the exact Plasma version (+ distribution) when asking questions, makes it easier to help ... |
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