I am trying to connect my laptop to my TV using a HMDI cable and I am having problems.
My Computer is a HP 15 TouchSmart with a Mesa DRI Intel HD Graphics 4400 (HSW GT2) graphics card. I am running Ubuntu 20.04 LTS 64 bit, with Kernel Linux 5.4.0-155-generic x86_64, and MATE 1.24.0. The computer was purchased early 2015 with Windows originally installed. Windows was removed.
When I connect the computer to the TV and turn the computer on I see the hp logo as it boots up, then the Ubuntu logo, and finally the wallpaper. After several minutes the mouse pointer disappears from the computer's screen and appears on the TV. The MATE desktop does not appear (no icons or task bar). I can move the mouse pointer around and right click to get the menu to create a new folder, etc. But that is all.
I went into the BIOS to look for some type of setting but found none.
The command:
lspci -k | grep -EA3 'VGA|3D|Display'
Results in:
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b)
Subsystem: Hewlett-Packard Company Haswell-ULT Integrated Graphics Controller
Kernel driver in use: i915
Kernel modules: i915
The Intel web site says the drivers are provided and maintained by the Linux distribution vendors. I have been updating Ubuntu regularly. So, I should have the latest drivers.
I found the Mesa web site and it has instructions for updating the Ubuntu drivers. But, I am not sure that will solve my problem.
Any advice?