Hello everyone,
My name is Gallus and I'm new to this forum: this is my first post.
On my old HP laptop last summer I have installed Zorin Os 16 Pro. The version is now 16.3.
From some days I've been having problems logging in graphical mode: when I click on my user or when I have entered the password the display goes flickering showing only coloured horizontal lines. I have noticed that if I open a second virtual console and I log in textual mode the system works correctly.
After the login the system report me only an error:
AttributeError: 'NoneType' object has no attribute 'upgrade_broken'
I have verified too that, completely randomly, sometimes I can log in in graphical mode and normally use my computer.
I home someone can help me solve this problem.
Thank you very much
gallus
P.S. I paste here the output of some commands...
sudo uname -r
5.15.0-86-generic
sudo lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Processor Root Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) I/O Memory Management Unit
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Stoney [Radeon R2/R3/R4/R5 Graphics] (rev da)
00:01.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Device 15b3
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Host Bridge
00:02.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Processor Root Port
00:02.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Processor Root Port
00:02.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Processor Root Port
00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Host Bridge
00:08.0 Encryption controller: Advanced Micro Devices, Inc. [AMD] Carrizo Platform Security Processor
00:09.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Carrizo Audio Dummy Host Bridge
00:09.2 Audio device: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Audio Controller
00:10.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller (rev 20)
00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 4b)
00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 49)
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 4b)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 11)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Stoney HT Configuration
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Stoney Address Maps
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Stoney DRAM Configuration
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Stoney Miscellaneous Configuration
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Stoney PM Configuration
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Stoney NB Performance Monitor
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723DE 802.11b/g/n PCIe Adapter
sudo lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
Address sizes: 48 bits physical, 48 bits virtual
CPU(s): 2
On-line CPU(s) list: 0,1
Thread(s) per core: 1
Core(s) per socket: 2
Socket(s): 1
NUMA node(s): 1
Vendor ID: AuthenticAMD
CPU family: 21
Model: 112
Model name: AMD A9-9420 RADEON R5, 5 COMPUTE CORES 2C+3G
Stepping: 0
Frequency boost: enabled
CPU MHz: 2161.444
CPU max MHz: 3000,0000
CPU min MHz: 1400,0000
BogoMIPS: 5988.66
Virtualization: AMD-V
L1d cache: 64 KiB
L1i cache: 128 KiB
L2 cache: 2 MiB
NUMA node0 CPU(s): 0,1
Vulnerability Gather data sampling: Not affected
Vulnerability Itlb multihit: Not affected
Vulnerability L1tf: Not affected
Vulnerability Mds: Not affected
Vulnerability Meltdown: Not affected
Vulnerability Mmio stale data: Not affected
Vulnerability Retbleed: Mitigation; untrained return thunk; SMT disa
bled
Vulnerability Spec rstack overflow: Not affected
Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disable
d via prctl and seccomp
Vulnerability Spectre v1: Mitigation; usercopy/swapgs barriers and _u
ser pointer sanitization
Vulnerability Spectre v2: Mitigation; Retpolines, STIBP disabled, RSB
filling, PBRSB-eIBRS Not affected
Vulnerability Srbds: Not affected
Vulnerability Tsx async abort: Not affected
Flags: fpu vme de pse tsc msr pae mce cx8 apic sep
mtrr pge mca cmov pat pse36 clflush mmx fxsr
sse sse2 ht syscall nx mmxext fxsr_opt pdpe
1gb rdtscp lm constant_tsc rep_good acc_powe
r nopl nonstop_tsc cpuid extd_apicid aperfmp
erf pni pclmulqdq monitor ssse3 fma cx16 sse
4_1 sse4_2 movbe popcnt aes xsave avx f16c l
ahf_lm cmp_legacy svm extapic cr8_legacy abm
sse4a misalignsse 3dnowprefetch osvw ibs xo
p skinit wdt lwp fma4 tce nodeid_msr tbm per
fctr_core perfctr_nb bpext ptsc mwaitx cpb h
w_pstate ssbd vmmcall fsgsbase bmi1 avx2 sme
p bmi2 xsaveopt arat npt lbrv svm_lock nrip
save tsc_scale vmcb_clean flushbyasid decode
assists pausefilter pfthreshold avic v_vmsav
e_vmload vgif overflow_recov
sudo lshw -C video
*-display
description: VGA compatible controller
product: Stoney [Radeon R2/R3/R4/R5 Graphics]
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 1
bus info: pci@0000:00:01.0
version: da
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
configuration: driver=amdgpu latency=0
resources: irq:34 memory:e0000000-efffffff memory:f0800000-f0ffffff ioport:4000(size=256) memory:f0400000-f043ffff memory:c0000-dffff
