I am trying to use my Samsung 6 Series TV as a secondary monitor for Dell XPS-15 laptop using an HDMI cable. I am running Ubuntu 18.04.
What I am encountering is that on my laptop, the second display is detected, I can go into the Displays tab under Devices in the Settings and see that a Samsung Electric Company 85" is detected.
On the display of the Samsung TV however, I see that there is No Signal.
When I have connect instead to an LG TV, or a Dell monitor, I have encountered no problems.
I have tried using the Samsung TV as a second display with this same laptop, but on my Windows partition (I am dual-booting), and I have encountered no problems with using the Samsung TV as a second display, which leads me to think that there must be something I can do to get this setup to work with Ubuntu as well.
Any help would be greatly appreciated!
More information:
If I run the command lshw -c video, I get the following output:
WARNING: you should run this program as super-user.
*-display
description: 3D controller
product: NVIDIA Corporation
vendor: NVIDIA Corporation
physical id: 0
bus info: pci@0000:01:00.0
version: a1
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list rom
configuration: driver=nvidia latency=0
resources: irq:180 memory:ec000000-ecffffff memory:c0000000-cfffffff memory:d0000000-d1ffffff ioport:3000(size=128) memory:ed000000-ed07ffff
*-display
description: VGA compatible controller
product: Intel Corporation
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 00
width: 64 bits
clock: 33MHz
capabilities: vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:178 memory:eb000000-ebffffff memory:80000000-8fffffff ioport:4000(size=64) memory:c0000-dffff
WARNING: output may be incomplete or inaccurate, you should run this program as super-user.
If I run the command modinfo $(modprobe --resolve-alias nvidia), this gives me:
filename: /lib/modules/5.4.0-81-generic/updates/dkms/nvidia.ko
alias: char-major-195-*
version: 460.91.03
supported: external
license: NVIDIA
srcversion: EA32CEBBA576FA0CDF3786B
alias: pci:v000010DEd*sv*sd*bc03sc02i00*
alias: pci:v000010DEd*sv*sd*bc03sc00i00*
depends:
retpoline: Y
name: nvidia
vermagic: 5.4.0-81-generic SMP mod_unload modversions
signat: PKCS#7
signer:
sig_key:
sig_hashalgo: md4
parm: NvSwitchRegDwords:NvSwitch regkey (charp)
parm: NvSwitchBlacklist:NvSwitchBlacklist=uuid[,uuid...] (charp)
parm: nv_cap_enable_devfs:Enable (1) or disable (0) nv-caps devfs support. Default: 1 (int)
parm: NVreg_ResmanDebugLevel:int
parm: NVreg_RmLogonRC:int
parm: NVreg_ModifyDeviceFiles:int
parm: NVreg_DeviceFileUID:int
parm: NVreg_DeviceFileGID:int
parm: NVreg_DeviceFileMode:int
parm: NVreg_InitializeSystemMemoryAllocations:int
parm: NVreg_UsePageAttributeTable:int
parm: NVreg_RegisterForACPIEvents:int
parm: NVreg_EnablePCIeGen3:int
parm: NVreg_EnableMSI:int
parm: NVreg_TCEBypassMode:int
parm: NVreg_EnableStreamMemOPs:int
parm: NVreg_EnableBacklightHandler:int
parm: NVreg_RestrictProfilingToAdminUsers:int
parm: NVreg_PreserveVideoMemoryAllocations:int
parm: NVreg_EnableS0ixPowerManagement:int
parm: NVreg_S0ixPowerManagementVideoMemoryThreshold:int
parm: NVreg_DynamicPowerManagement:int
parm: NVreg_DynamicPowerManagementVideoMemoryThreshold:int
parm: NVreg_EnableUserNUMAManagement:int
parm: NVreg_MemoryPoolSize:int
parm: NVreg_KMallocHeapMaxSize:int
parm: NVreg_VMallocHeapMaxSize:int
parm: NVreg_IgnoreMMIOCheck:int
parm: NVreg_NvLinkDisable:int
parm: NVreg_EnablePCIERelaxedOrderingMode:int
parm: NVreg_RegisterPCIDriver:int
parm: NVreg_RegistryDwords:charp
parm: NVreg_RegistryDwordsPerDevice:charp
parm: NVreg_RmMsg:charp
parm: NVreg_GpuBlacklist:charp
parm: NVreg_TemporaryFilePath:charp
Finally, if I run the command lspci -nnk | grep -i vga -A3 | grep 'in use', I obtain:
Kernel driver in use: i915.
These commands I found on the askubuntu page: How can I find what video driver is in use on my system?
Thanks again!
