Sorry for the slow reply. The laptop is an old (2012) Sony Vaio; I attach the output of lspci and lshw below.
Conrad lspci: 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) lshw: *-display description: VGA compatible controller product: 3rd Gen Core processor Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 09 width: 64 bits clock: 33MHz capabilities: vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:28 memory:d7000000-d73fffff memory:c0000000-cfffffff ioport:9000(size=64) memory:c0000-dffff *-usb:0 description: USB controller product: 7 Series/C210 Series Chipset Family USB xHCI Host Controller vendor: Intel Corporation physical id: 14 bus info: pci@0000:00:14.0 version: 04 width: 64 bits clock: 33MHz capabilities: xhci bus_master cap_list configuration: driver=xhci_hcd latency=0 resources: irq:27 memory:d7400000-d740ffff