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lightdm-gtk-greeter eats 100% cpu in Armbian 21.02.3 desktop for OrangePi PC



I downloaded the most fresh image Armbian_21.02.3_Orangepipc_focal_current_5.10.12_desktop.img.xz from armbian.com for my board OrangePi PC. I installed it and had a problem with a process lightdm-gtk-greeter which eats 100% of CPU all time after first board reboot. Updating via apt-get update/upgrade didn't solve the problem. First of all i tried to find the solution in the internet and in this site, but all solutions which i found didn't help me. The most close topic for other board is here.


Also i tried to run archived versions:

Armbian_21.02.1_Orangepipc_focal_current_5.10.12_desktop.img.xz - had same issue.

Armbian_20.08.1_Orangepipc_focal_current_5.8.5_desktop.img.xz - didn't have same issue.

I think that all Armbian_21.XX.X for OrangePi PC had this issue, but i didn't check all.


After i found that 20.08.1 didn't have issue with lightdm , i updated it as usual:

sudo apt-get update
sudo apt-get upgrade

And this fixed my issue, now i have Armbian_21.02.3 which works fine.


Hope this post help somebody and developers will fix this issue next time.

Good luck.

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It looks like an issue with lightdm itself than specific to OrangePi.

The issue has been spotted by other users too on other architectures (rockchip64) on other forum threads (https://forum.armbian.com/topic/17597-csc-armbian-for-rk3318-tv-box-boards/?do=findComment&comment=124083), but like your case upgrading lightdm to latest version seems to solve the issue.

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