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HDMI external monitor not working [Linux Lite 4.2]

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Re: HDMI external monitor not working [Linux Lite 4.2]
« Reply #6 on: December 03, 2018, 02:14:58 PM »
 

lite noob

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Try this PPA here:

Code: [Select]
sudo add-apt-repository ppa:oibaf/graphics-drivers
sudo apt-get update
sudo apt-get dist-upgrade

Reboot.

Thanks, but that didn't work out. Is there a way I can check that those drivers are the ones my system is using? My lspci -k -s 00:02.0 command is still reading I have the i915 driver even after adding that ppa and upgrading it.

Also, I tried out with a newer TV, which actually worked fine. Back when my laptop had Windows on it, I was able to duplicate and extend the screen with my "old" (non-working) TV. So this has to be something with the drivers.
 

Re: HDMI external monitor not working [Linux Lite 4.2]
« Reply #5 on: November 23, 2018, 01:19:05 AM »
 

Jerry

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Try this PPA here:

Code: [Select]
sudo add-apt-repository ppa:oibaf/graphics-drivers
sudo apt-get update
sudo apt-get dist-upgrade

Reboot.
 

Re: HDMI external monitor not working [Linux Lite 4.2]
« Reply #4 on: November 21, 2018, 10:37:47 AM »
 

lite noob

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@PRafael Yes. In my computer, It's Fn + F8 to switch the display. This brings the "Display" window, which is what @firenice03 is talking about. And the only option there is "Laptop".

Any more suggestions?

 

Re: HDMI external monitor not working [Linux Lite 4.2]
« Reply #3 on: November 21, 2018, 07:53:28 AM »
 

firenice03

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Have you checked "display" to enable the monitor/tv (display 2) and either extend/duplicate/present to the display??

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Re: HDMI external monitor not working [Linux Lite 4.2]
« Reply #2 on: November 21, 2018, 06:43:07 AM »
 

PRafael

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Good mornig.

My hardware is diferente (I use a Toshiba) and I can see the HDMI display without problems. Just to ask...have you switch monitors usin FN + F Key (I don't know the Dell key to execute this...on my Toshiba is F3) so I press FN+F3 tho have the HDMI image. See your manual to select the right FN Key.

About the cable...the computer detect the HDMI entry even if a plug the cable after booting the computer...just using the FN + F Key combination.

Regards

Paulo
 

HDMI external monitor not working [Linux Lite 4.2]
« Reply #1 on: November 19, 2018, 12:09:25 AM »
 

lite noob

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Kernel: 4.15.0-38-generic x86_64
Hardware: Dell latitude 7270
OS: Linux Lite 4.2

I've had this problem with my current distro of Linux Lite 4.2 and with a prior distro of Linux Mint 18.3 Sylvia. When I connect my HDMI cable to my TV, it's not detected by the computer. Then I learned that you have to boot with the HDMI cable already plugged in. I do see the DELL logo while in the POST, but after that the image on the TV fades and it goes back to my laptop and shows me the log in screen. After logging in, the computer doesn't detect the TV. I'm even able to see GRUB on the TV if I access it. But when it tries to load the Linux OS, the image switches from displaying on the TV to the laptop screen.

Also tried booting from other live distros, with no luck.

I've read on other forums that I have to switch between some nVidia video drivers, but I don't think that applies to my configuration because my video card is from Intel, and the BIOS has no video settings I can play with to switch drivers.

On this thread it was suggested to update to kernel 4.15.18-041518-generic, which didn't work for me.

Code: [Select]
$sudo lshw -c video

  *-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:128 memory:e0000000-e0ffffff memory:d0000000-dfffffff ioport:f000(size=64) memory:c0000-dffff

Code: [Select]
$xrandar

Screen 0: minimum 320 x 200, current 1366 x 768, maximum 8192 x 8192
eDP-1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 277mm x 156mm
   1366x768      60.00*+  47.49 
   1360x768      59.80    59.96 
   1280x720      60.00    59.99    59.86    59.74 
   1024x768      60.04    60.00 
   960x720       60.00 
   928x696       60.05 
   896x672       60.01 
   1024x576      59.95    59.96    59.90    59.82 
   960x600       59.93    60.00 
   960x540       59.96    59.99    59.63    59.82 
   800x600       60.00    60.32    56.25 
   840x525       60.01    59.88 
   864x486       59.92    59.57 
   800x512       60.17 
   700x525       59.98 
   800x450       59.95    59.82 
   640x512       60.02 
   720x450       59.89 
   700x450       59.96    59.88 
   640x480       60.00    59.94 
   720x405       59.51    58.99 
   684x384       59.88    59.85 
   680x384       59.80    59.96 
   640x400       59.88    59.98 
   576x432       60.06 
   640x360       59.86    59.83    59.84    59.32 
   512x384       60.00 
   512x288       60.00    59.92 
   480x270       59.63    59.82 
   400x300       60.32    56.34 
   432x243       59.92    59.57 
   320x240       60.05 
   360x202       59.51    59.13 
   320x180       59.84    59.32 
HDMI-1 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-2 disconnected (normal left inverted right x axis y axis)


Code: [Select]
$lspci -k -s 00:02.0

00:02.0 VGA compatible controller: Intel Corporation HD Graphics 520 (rev 07)
   Subsystem: Dell Skylake GT2 [HD Graphics 520]
   Kernel driver in use: i915
   Kernel modules: i915

Question #1: How can I get the external HDMI port to work?

Question #2: Is it true that you HAVE to connect the HDMI cable to your computer BEFORE booting the Linux distro?

Thanks
« Last Edit: November 01, 2019, 10:59:52 PM by firenice03 »
 

 

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