I want to install AMD graphics card driver on Ubuntu 17.10 running laptop. I don't know whether the radeon driver has already installed and running. Is the graphics card in use? If not how can I install it's driver?
Output for sudo lshw -C video -C cpu
*-cpu
description: CPU
product: Intel(R) Core(TM) i5-6200U CPU @ 2.30GHz
vendor: Intel Corp.
physical id: 4
bus info: cpu@0
version: Intel(R) Core(TM) i5-6200U CPU @ 2.30GHz
serial: To Be Filled By O.E.M.
slot: U3E1
size: 500MHz
capacity: 2800MHz
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 dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb intel_pt tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp cpufreq
configuration: cores=2 enabledcores=2 threads=4
*-display
description: VGA compatible controller
product: HD Graphics 520
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 07
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:129 memory:c1000000-c1ffffff memory:a0000000-afffffff ioport:5000(size=64) memory:c0000-dffff
*-display
description: Display controller
product: Topaz XT [Radeon R7 M260/M265 / M340/M360 / M440/M445]
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 0
bus info: pci@0000:01:00.0
version: 83
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi bus_master cap_list rom
configuration: driver=amdgpu latency=0
resources: irq:128 memory:b0000000-bfffffff memory:c0000000-c01fffff ioport:4000(size=256) memory:c2300000-c233ffff memory:c2340000-c235ffff
lspci -vnnn | perl -lne 'print if /^\d+\:.+(\[\S+\:\S+\])/' | grep VGA
give this output
00:02.0 VGA compatible controller [0300]: Intel Corporation HD Graphics 520 [8086:1916] (rev 07) (prog-if 00 [VGA controller])
(source: comment by mikewhatever)