Why can’t I use any kernel greater than 4.2?

I’m pretty new in Linux. I used GNUU to download and install linux kernels and i manually downloaded every version newer than mine (4.18.0-25-generic) none of which worked. When I turned on my pc, i was left with a blank black screen and it wasn’t loading anything at all.

I read linux kernel >5 finally has some serious improvements with AMDs, and I’m deeply interessed in that. I recently had some freeze issues, and it turned out it was something related with KWin/compositor. (not sure if this is related).

This is my OS

Operating System: Kubuntu 19.04 KDE Plasma Version: 5.15.4 KDE Frameworks Version: 5.56.0 Qt Version: 5.12.2 Kernel Version: 4.18.0-25-generic OS Type: 64-bit Processors: 8 × AMD Ryzen 5 2500U with Radeon Vega Mobile Gfx Memory: 7,5 GiB of RAM 

This is my hardware

sclero                           description: Notebook     product: Swift SF315-41 (0000000000000000)     vendor: Acer     version: V1.02     serial: NXGV7ET00175005CC27200     width: 64 bits     capabilities: smbios-3.0 dmi-3.0 smp vsyscall32     configuration: chassis=notebook family=Swift 3 sku=0000000000000000 uuid=E003CDFF-4BE2-E781-2FFC-9822EF92F3FD   *-core        description: Motherboard        product: Becks_RR        vendor: RR        physical id: 0        version: V1.02        serial: NBGV511005750029DE7200        slot: Type2 - Board Chassis Location      *-firmware           description: BIOS           vendor: Insyde Corp.           physical id: 0           version: V1.02           date: 12/04/2017           size: 128KiB           capacity: 8128KiB           capabilities: pci upgrade shadowing cdboot bootselect edd int13floppynec int13floppytoshiba int13floppy360 int13floppy1200 int13floppy720 int13floppy2880 int9keyboard int10video acpi usb biosbootspecification uefi      *-cpu           description: CPU           product: AMD Ryzen 5 2500U with Radeon Vega Mobile Gfx           vendor: Advanced Micro Devices [AMD]           physical id: 4           bus info: cpu@0           version: AMD Ryzen 5 2500U with Radeon Vega Mobile Gfx           serial: Unknown           slot: FP5           size: 3344MHz           capacity: 3600MHz           width: 64 bits           clock: 100MHz           capabilities: x86-64 fpu fpu_exception wp 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 pdpe1gb rdtscp constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx hw_pstate sme ssbd sev vmmcall fsgsbase bmi1 avx2 smep bmi2 rdseed adx smap clflushopt sha_ni xsaveopt xsavec xgetbv1 xsaves clzero irperf xsaveerptr arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif overflow_recov succor smca cpufreq           configuration: cores=4 enabledcores=4 threads=8         *-cache:0              description: L1 cache              physical id: 5              slot: L1 - Cache              size: 384KiB              capacity: 384KiB              clock: 1GHz (1.0ns)              capabilities: pipeline-burst internal write-back unified              configuration: level=1         *-cache:1              description: L2 cache              physical id: 6              slot: L2 - Cache              size: 2MiB              capacity: 2MiB              clock: 1GHz (1.0ns)              capabilities: pipeline-burst internal write-back unified              configuration: level=2         *-cache:2              description: L3 cache              physical id: 7              slot: L3 - Cache              size: 4MiB              capacity: 4MiB              clock: 1GHz (1.0ns)              capabilities: pipeline-burst internal write-back unified              configuration: level=3      *-memory           description: System Memory           physical id: b           slot: System board or motherboard           size: 8GiB         *-bank:0              description: SODIMM DDR4 Synchronous Unbuffered (Unregistered) 2400 MHz (0,4 ns)              product: 4ATF51264HZ-2G3B1              vendor: Micron Technology              physical id: 0              serial: 00000000              slot: DIMM 0              size: 4GiB              width: 64 bits              clock: 2400MHz (0.4ns)         *-bank:1              description: SODIMM DDR4 Synchronous Unbuffered (Unregistered) 2400 MHz (0,4 ns)              product: 4ATF51264HZ-2G3B1              vendor: Micron Technology              physical id: 1              serial: 00000000              slot: DIMM 0              size: 4GiB              width: 64 bits              clock: 2400MHz (0.4ns)      *-pci:0           description: Host bridge           product: Advanced Micro Devices, Inc. [AMD]           vendor: Advanced Micro Devices, Inc. [AMD]           physical id: 100           bus info: pci@0000:00:00.0           version: 00           width: 32 bits           clock: 33MHz         *-generic UNCLAIMED              description: IOMMU              product: Advanced Micro Devices, Inc. [AMD]              vendor: Advanced Micro Devices, Inc. [AMD]              physical id: 0.2              bus info: pci@0000:00:00.2              version: 00              width: 32 bits              clock: 33MHz              capabilities: msi ht bus_master cap_list              configuration: latency=0         *-pci:0              description: PCI bridge              product: Advanced Micro Devices, Inc. [AMD]              vendor: Advanced Micro Devices, Inc. [AMD]              physical id: 1.2              bus info: pci@0000:00:01.2              version: 00              width: 32 bits              clock: 33MHz              capabilities: pci pm pciexpress msi ht normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:26 memory:e0900000-e09fffff            *-storage                 description: Non-Volatile memory controller                 product: Intel Corporation                 vendor: Intel Corporation                 physical id: 0                 bus info: pci@0000:01:00.0                 version: 03                 width: 64 bits                 clock: 33MHz                 capabilities: storage pm pciexpress msix nvm_express bus_master cap_list                 configuration: driver=nvme latency=0                 resources: irq:48 memory:e0900000-e0903fff         *-pci:1              description: PCI bridge              product: Advanced Micro Devices, Inc. [AMD]              vendor: Advanced Micro Devices, Inc. [AMD]              physical id: 1.7              bus info: pci@0000:00:01.7              version: 00              width: 32 bits              clock: 33MHz              capabilities: pci pm pciexpress msi ht normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:27 memory:e0200000-e03fffff            *-network                 description: Wireless interface                 product: QCA6174 802.11ac Wireless Network Adapter                 vendor: Qualcomm Atheros                 physical id: 0                 bus info: pci@0000:02:00.0                 logical name: wlp2s0                 version: 32                 serial: 98:22:ef:92:f3:fd                 width: 64 bits                 clock: 33MHz                 capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless                 configuration: broadcast=yes driver=ath10k_pci driverversion=4.18.0-25-generic firmware=RM.4.4.1.c2-00057-QCARMSWP-1 ip=192.168.1.76 latency=0 link=yes multicast=yes wireless=IEEE 802.11                 resources: irq:60 memory:e0200000-e03fffff         *-pci:2              description: PCI bridge              product: Advanced Micro Devices, Inc. [AMD]              vendor: Advanced Micro Devices, Inc. [AMD]              physical id: 8.1              bus info: pci@0000:00:08.1              version: 00              width: 32 bits              clock: 33MHz              capabilities: pci pm pciexpress msi normal_decode bus_master cap_list              configuration: driver=pcieport              resources: irq:28 ioport:1000(size=4096) memory:e0500000-e08fffff ioport:d0000000(size=270532608)            *-display                 description: VGA compatible controller                 product: Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series]                 vendor: Advanced Micro Devices, Inc. [AMD/ATI]                 physical id: 0                 bus info: pci@0000:03:00.0                 version: c4                 width: 64 bits                 clock: 33MHz                 capabilities: pm pciexpress msi msix vga_controller bus_master cap_list                 configuration: driver=amdgpu latency=0                 resources: irq:50 memory:d0000000-dfffffff memory:e0000000-e01fffff ioport:1000(size=256) memory:e0800000-e087ffff            *-multimedia:0                 description: Audio device                 product: Advanced Micro Devices, Inc. [AMD/ATI]                 vendor: Advanced Micro Devices, Inc. [AMD/ATI]                 physical id: 0.1                 bus info: pci@0000:03:00.1                 version: 00                 width: 32 bits                 clock: 33MHz                 capabilities: pm pciexpress msi bus_master cap_list                 configuration: driver=snd_hda_intel latency=0                 resources: irq:62 memory:e08c8000-e08cbfff            *-generic UNCLAIMED                 description: Encryption controller                 product: Advanced Micro Devices, Inc. [AMD]                 vendor: Advanced Micro Devices, Inc. [AMD]                 physical id: 0.2                 bus info: pci@0000:03:00.2                 version: 00                 width: 32 bits                 clock: 33MHz                 capabilities: pm pciexpress msi msix cap_list                 configuration: latency=0                 resources: memory:e0700000-e07fffff memory:e08cc000-e08cdfff            *-usb:0                 description: USB controller                 product: Advanced Micro Devices, Inc. [AMD]                 vendor: Advanced Micro Devices, Inc. [AMD]                 physical id: 0.3                 bus info: pci@0000:03:00.3                 version: 00                 width: 64 bits                 clock: 33MHz                 capabilities: pm pciexpress msi msix xhci bus_master cap_list                 configuration: driver=xhci_hcd latency=0                 resources: irq:29 memory:e0600000-e06fffff               *-usbhost:0                    product: xHCI Host Controller                    vendor: Linux 4.18.0-25-generic xhci-hcd                    physical id: 0                    bus info: usb@1                    logical name: usb1                    version: 4.18                    capabilities: usb-2.00                    configuration: driver=hub slots=4 speed=480Mbit/s               *-usbhost:1                    product: xHCI Host Controller                    vendor: Linux 4.18.0-25-generic xhci-hcd                    physical id: 1                    bus info: usb@2                    logical name: usb2                    version: 4.18                    capabilities: usb-3.10                    configuration: driver=hub slots=4 speed=10000Mbit/s            *-usb:1                 description: USB controller                 product: Advanced Micro Devices, Inc. [AMD]                 vendor: Advanced Micro Devices, Inc. [AMD]                 physical id: 0.4                 bus info: pci@0000:03:00.4                 version: 00                 width: 64 bits                 clock: 33MHz                 capabilities: pm pciexpress msi msix xhci bus_master cap_list                 configuration: driver=xhci_hcd latency=0                 resources: irq:38 memory:e0500000-e05fffff               *-usbhost:0                    product: xHCI Host Controller                    vendor: Linux 4.18.0-25-generic xhci-hcd                    physical id: 0                    bus info: usb@3                    logical name: usb3                    version: 4.18                    capabilities: usb-2.00                    configuration: driver=hub slots=2 speed=480Mbit/s                  *-usb:0                       description: Video                       product: HD WebCam                       vendor: Chicony Electronics Co.,Ltd.                       physical id: 1                       bus info: usb@3:1                       version: 92.26                       capabilities: usb-2.00                       configuration: driver=uvcvideo maxpower=500mA speed=480Mbit/s                  *-usb:1                       description: USB hub                       product: USB2.0 Hub                       vendor: Genesys Logic, Inc.                       physical id: 2                       bus info: usb@3:2                       version: 88.32                       capabilities: usb-2.00                       configuration: driver=hub maxpower=100mA slots=4 speed=480Mbit/s                     *-usb:0                          description: Mouse                          product: G203 Prodigy Gaming Mouse                          vendor: Logitech                          physical id: 1                          bus info: usb@3:2.1                          version: 7.03                          serial: 0D8637603636                          capabilities: usb-2.00                          configuration: driver=usbhid maxpower=300mA speed=12Mbit/s                     *-usb:1                          description: Generic USB device                          product: USB2.0-CRW                          vendor: Generic                          physical id: 2                          bus info: usb@3:2.2                          version: 39.60                          serial: 20100201396000000                          capabilities: usb-2.00                          configuration: driver=rtsx_usb maxpower=500mA speed=480Mbit/s                     *-usb:2 UNCLAIMED                          description: Generic USB device                          product: EgisTec Touch Fingerprint Sensor                          vendor: EgisTec                          physical id: 3                          bus info: usb@3:2.3                          version: 10.41                          serial: 07029CDA                          capabilities: usb-1.10                          configuration: maxpower=100mA speed=12Mbit/s                     *-usb:3                          description: Bluetooth wireless interface                          vendor: Lite-On Technology Corp.                          physical id: 4                          bus info: usb@3:2.4                          version: 0.01                          capabilities: bluetooth usb-2.01                          configuration: driver=btusb maxpower=100mA speed=12Mbit/s               *-usbhost:1                    product: xHCI Host Controller                    vendor: Linux 4.18.0-25-generic xhci-hcd                    physical id: 1                    bus info: usb@4                    logical name: usb4                    version: 4.18                    capabilities: usb-3.10                    configuration: driver=hub slots=1 speed=10000Mbit/s            *-multimedia:1 UNCLAIMED                 description: Multimedia controller                 product: Advanced Micro Devices, Inc. [AMD]                 vendor: Advanced Micro Devices, Inc. [AMD]                 physical id: 0.5                 bus info: pci@0000:03:00.5                 version: 00                 width: 32 bits                 clock: 33MHz                 capabilities: pm pciexpress msi cap_list                 configuration: latency=0                 resources: memory:e0880000-e08bffff            *-multimedia:2                 description: Audio device                 product: Advanced Micro Devices, Inc. [AMD]                 vendor: Advanced Micro Devices, Inc. [AMD]                 physical id: 0.6                 bus info: pci@0000:03:00.6                 version: 00                 width: 32 bits                 clock: 33MHz                 capabilities: pm pciexpress msi bus_master cap_list                 configuration: driver=snd_hda_intel latency=0                 resources: irq:64 memory:e08c0000-e08c7fff         *-serial              description: SMBus              product: FCH SMBus Controller              vendor: Advanced Micro Devices, Inc. [AMD]              physical id: 14              bus info: pci@0000:00:14.0              version: 61              width: 32 bits              clock: 66MHz              configuration: driver=piix4_smbus latency=0              resources: irq:0         *-isa              description: ISA bridge              product: FCH LPC Bridge              vendor: Advanced Micro Devices, Inc. [AMD]              physical id: 14.3              bus info: pci@0000:00:14.3              version: 51              width: 32 bits              clock: 66MHz              capabilities: isa bus_master              configuration: latency=0      *-pci:1           description: Host bridge           product: Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge           vendor: Advanced Micro Devices, Inc. [AMD]           physical id: 101           bus info: pci@0000:00:01.0           version: 00           width: 32 bits           clock: 33MHz      *-pci:2           description: Host bridge           product: Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge           vendor: Advanced Micro Devices, Inc. [AMD]           physical id: 102           bus info: pci@0000:00:08.0           version: 00           width: 32 bits           clock: 33MHz      *-pci:3           description: Host bridge           product: Advanced Micro Devices, Inc. [AMD]           vendor: Advanced Micro Devices, Inc. [AMD]           physical id: 103           bus info: pci@0000:00:18.0           version: 00           width: 32 bits           clock: 33MHz      *-pci:4           description: Host bridge           product: Advanced Micro Devices, Inc. [AMD]           vendor: Advanced Micro Devices, Inc. [AMD]           physical id: 104           bus info: pci@0000:00:18.1           version: 00           width: 32 bits           clock: 33MHz      *-pci:5           description: Host bridge           product: Advanced Micro Devices, Inc. [AMD]           vendor: Advanced Micro Devices, Inc. [AMD]           physical id: 105           bus info: pci@0000:00:18.2           version: 00           width: 32 bits           clock: 33MHz      *-pci:6           description: Host bridge           product: Advanced Micro Devices, Inc. [AMD]           vendor: Advanced Micro Devices, Inc. [AMD]           physical id: 106           bus info: pci@0000:00:18.3           version: 00           width: 32 bits           clock: 33MHz           configuration: driver=k10temp           resources: irq:0      *-pci:7           description: Host bridge           product: Advanced Micro Devices, Inc. [AMD]           vendor: Advanced Micro Devices, Inc. [AMD]           physical id: 107           bus info: pci@0000:00:18.4           version: 00           width: 32 bits           clock: 33MHz      *-pci:8           description: Host bridge           product: Advanced Micro Devices, Inc. [AMD]           vendor: Advanced Micro Devices, Inc. [AMD]           physical id: 108           bus info: pci@0000:00:18.5           version: 00           width: 32 bits           clock: 33MHz      *-pci:9           description: Host bridge           product: Advanced Micro Devices, Inc. [AMD]           vendor: Advanced Micro Devices, Inc. [AMD]           physical id: 109           bus info: pci@0000:00:18.6           version: 00           width: 32 bits           clock: 33MHz      *-pci:10           description: Host bridge           product: Advanced Micro Devices, Inc. [AMD]           vendor: Advanced Micro Devices, Inc. [AMD]           physical id: 10a           bus info: pci@0000:00:18.7           version: 00           width: 32 bits           clock: 33MHz