Galat Login Loop di Ubuntu 19.10

Diperbarui 15 Maret 2020 oleh Dani Iswara

Sebelumnya Ubuntu ini pernah upgrade sekali setelah instal awal. Tetapi setelahnya belum sempat restart lagi. Tadi malam coba cek ternyata gagal login. Setelah pengguna log masuk dengan kata sandi, muncul layar putih bertuliskan:

Oh no! Something has gone wrong. A problem has occurred and the system can’t recover. Please log out and try again.

dengan tombol Log out di bawahnya. Penelusuran via Google menyebutkan masalah mungkin terjadi karena:

proses pembaruan kurang mulus,
ada masalah dengan driver grafis tertentu,
isu pada desktop manager/environment GNOME,
kerusakan hardware.

Berkas /var/log/messages belum sempat saya cek.

dani@dan-ubuntu:~$ lspci -tv
 -[0000:00]-+-00.0  Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Processor Root Complex
            +-00.2  Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) I/O Memory Management Unit
            +-01.0  Advanced Micro Devices, Inc. [AMD/ATI] Stoney [Radeon R2/R3/R4/R5 Graphics]
            +-01.1  Advanced Micro Devices, Inc. [AMD/ATI] Device 15b3
            +-02.0  Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Host Bridge
            +-02.1-[01]--
            +-02.4-[02]----00.0  Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
            +-02.5-[03]----00.0  Realtek Semiconductor Co., Ltd. RTL8723DE 802.11b/g/n PCIe Adapter
            +-03.0  Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Host Bridge
            +-08.0  Advanced Micro Devices, Inc. [AMD] Carrizo Platform Security Processor
            +-09.0  Advanced Micro Devices, Inc. [AMD] Carrizo Audio Dummy Host Bridge
            +-09.2  Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Audio Controller
            +-10.0  Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller
            +-11.0  Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode]
            +-12.0  Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller
            +-14.0  Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller
            +-14.3  Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge
            +-18.0  Advanced Micro Devices, Inc. [AMD] Stoney HT Configuration
            +-18.1  Advanced Micro Devices, Inc. [AMD] Stoney Address Maps
            +-18.2  Advanced Micro Devices, Inc. [AMD] Stoney DRAM Configuration
            +-18.3  Advanced Micro Devices, Inc. [AMD] Stoney Miscellaneous Configuration
            +-18.4  Advanced Micro Devices, Inc. [AMD] Stoney PM Configuration
            -18.5  Advanced Micro Devices, Inc. [AMD] Stoney NB Performance Monitor

Sepertinya proses pemutakhiran sebelumnya mulus saja tanpa muncul galat. Coba ctrl + alt + F3 untuk masuk ke moda teks. Berhasil. WiFi sudah terkoneksi. Coba pembaruan ulang.

sudo apt-get update && apt-get upgrade

reboot

Log masuk lagi…dan…gagal. Layar putih itu muncul lagi.

Driver amdgpu untuk AMD Radeon (Ubuntu.com) sudah tersemat via xserver-xorg-video-amdgpu. Sebelumnya sudah pernah coba koneksi HDMI ke televisi tidak ada masalah.

Akhirnya instal lingkungan desktop baru MATE. Coba-coba untuk menggantikan GNOME. Di Linux Void saya juga pakai MATE (Dani Iswara .com).

sudo apt-get instal ubuntu-mate-desktop

Start ulang. Pilih sesi MATE. Log masuk. Berhasil! Entahlah…apakah memang di GNOME yang bermasalah.

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