HDMI not detecting TV

[chrispap000]

Hello all,

I am new to Linux. I have just installed Mint, but it cannot detect TV with HDMI. Any help would be more than welcome.

Thank you in advance.

Chris.

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System:
  Kernel: 5.15.0-48-generic x86_64 bits: 64 compiler: gcc v: 11.2.0 Desktop: Cinnamon 5.4.12
    tk: GTK 3.24.33 wm: Mutter dm: LightDM Distro: Linux Mint 21 Vanessa base: Ubuntu 22.04 jammy
Machine:
  Type: Laptop System: Hewlett-Packard product: HP EliteBook 8730w v: F.13
    serial: <superuser required> Chassis: type: 10 serial: <superuser required>
  Mobo: Hewlett-Packard model: 30EC v: KBC Version 91.25 serial: <superuser required>
    BIOS: Hewlett-Packard v: 68PAD Ver. F.13 date: 12/03/2010
CPU:
  Info: dual core model: Intel Core2 Duo T9600 bits: 64 type: MCP arch: Core Yorkfield rev: 6
    cache: L1: 128 KiB L2: 6 MiB
  Speed (MHz): avg: 2799 high: 2806 min/max: 800/2801 cores: 1: 2806 2: 2793 bogomips: 11171
  Flags: ht lm nx pae sse sse2 sse3 sse4_1 ssse3 vmx
Graphics:
  Device-1: NVIDIA G94GLM [Quadro FX 2700M] vendor: Hewlett-Packard driver: nouveau v: kernel
    pcie: speed: 2.5 GT/s lanes: 16 ports: active: LVDS-1 empty: DVI-D-1,DVI-D-2,VGA-1
    bus-ID: 01:00.0 chip-ID: 10de:063a
  Device-2: Chicony CKA7216 type: USB driver: uvcvideo bus-ID: 1-5:4 chip-ID: 04f2:b053
  Display: x11 server: X.Org v: 1.21.1.3 driver: X: loaded: modesetting unloaded: fbdev,vesa
    gpu: nouveau display-ID: :0 screens: 1
  Screen-1: 0 s-res: 1920x1200 s-dpi: 96
  Monitor-1: LVDS-1 model: Seiko Epson res: 1920x1200 dpi: 133 diag: 433mm (17.1")
  OpenGL: renderer: NV94 v: 3.3 Mesa 22.0.5 direct render: Yes
Audio:
  Device-1: Intel 82801I HD Audio vendor: Hewlett-Packard driver: snd_hda_intel v: kernel
    bus-ID: 00:1b.0 chip-ID: 8086:293e
  Sound Server-1: ALSA v: k5.15.0-48-generic running: yes
  Sound Server-2: PulseAudio v: 15.99.1 running: yes
  Sound Server-3: PipeWire v: 0.3.48 running: yes
Network:
  Device-1: Intel 82567LM Gigabit Network vendor: Hewlett-Packard driver: e1000e v: kernel
    port: 80e0 bus-ID: 00:19.0 chip-ID: 8086:10f5
  IF: enp0s25 state: down mac: <filter>
  Device-2: Intel Ultimate N WiFi Link 5300 driver: iwlwifi v: kernel pcie: speed: 2.5 GT/s
    lanes: 1 bus-ID: 03:00.0 chip-ID: 8086:4236
  IF: wlp3s0 state: up mac: <filter>
Bluetooth:
  Device-1: HP Bluetooth 2.0 Interface [Broadcom BCM2045] type: USB driver: btusb v: 0.8
    bus-ID: 3-1:2 chip-ID: 03f0:171d
  Report: hciconfig ID: hci0 rfk-id: 0 state: up address: <filter> bt-v: 1.2 lmp-v: 2.0
    sub-v: 41cf
Drives:
  Local Storage: total: 256.17 GiB used: 11.23 GiB (4.4%)
  ID-1: /dev/sda vendor: Crucial model: CT275MX300SSD1 size: 256.17 GiB speed: 3.0 Gb/s
    serial: <filter>
Partition:
  ID-1: / size: 250.6 GiB used: 11.23 GiB (4.5%) fs: ext4 dev: /dev/sda3
  ID-2: /boot/efi size: 512 MiB used: 5.2 MiB (1.0%) fs: vfat dev: /dev/sda2
Swap:
  ID-1: swap-1 type: file size: 2 GiB used: 0 KiB (0.0%) priority: -2 file: /swapfile
USB:
  Hub-1: 1-0:1 info: Full speed or root hub ports: 6 rev: 2.0 speed: 480 Mb/s chip-ID: 1d6b:0002
  Device-1: 1-5:4 info: Chicony CKA7216 type: Video driver: uvcvideo rev: 2.0 speed: 480 Mb/s
    chip-ID: 04f2:b053
  Hub-2: 2-0:1 info: Full speed or root hub ports: 6 rev: 2.0 speed: 480 Mb/s chip-ID: 1d6b:0002
  Hub-3: 3-0:1 info: Full speed or root hub ports: 2 rev: 1.1 speed: 12 Mb/s chip-ID: 1d6b:0001
  Device-1: 3-1:2 info: HP Bluetooth 2.0 Interface [Broadcom BCM2045] type: Bluetooth
    driver: btusb rev: 2.0 speed: 12 Mb/s chip-ID: 03f0:171d
  Hub-4: 4-0:1 info: Full speed or root hub ports: 2 rev: 1.1 speed: 12 Mb/s chip-ID: 1d6b:0001
  Device-1: 4-1:2 info: AuthenTec AES2810 type: <vendor specific> driver: N/A rev: 2.0
    speed: 12 Mb/s chip-ID: 08ff:2810
  Hub-5: 5-0:1 info: Full speed or root hub ports: 2 rev: 1.1 speed: 12 Mb/s chip-ID: 1d6b:0001
  Hub-6: 6-0:1 info: Full speed or root hub ports: 2 rev: 1.1 speed: 12 Mb/s chip-ID: 1d6b:0001
  Hub-7: 7-0:1 info: Full speed or root hub ports: 2 rev: 1.1 speed: 12 Mb/s chip-ID: 1d6b:0001
  Hub-8: 8-0:1 info: Full speed or root hub ports: 2 rev: 1.1 speed: 12 Mb/s chip-ID: 1d6b:0001
Sensors:
  System Temperatures: cpu: 86.0 C mobo: 30.0 C gpu: nouveau temp: 54.0 C
  Fan Speeds (RPM): N/A
Repos:
  Packages: apt: 2138
  No active apt repos in: /etc/apt/sources.list
  Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list
    1: deb http: //packages.linuxmint.com vanessa main upstream import backport
    2: deb http: //archive.ubuntu.com/ubuntu jammy main restricted universe multiverse
    3: deb http: //archive.ubuntu.com/ubuntu jammy-updates main restricted universe multiverse
    4: deb http: //archive.ubuntu.com/ubuntu jammy-backports main restricted universe multiverse
    5: deb http: //security.ubuntu.com/ubuntu/ jammy-security main restricted universe multiverse
Info:
  Processes: 223 Uptime: 5m Memory: 3.73 GiB used: 1.49 GiB (39.8%) Init: systemd v: 249
  runlevel: 5 Compilers: gcc: 11.2.0 alt: 11 Client: Unknown python3.10 client inxi: 3.3.13

[SMG]

I have just installed Mint, but it cannot detect TV with HDMI.

Welcome to the forum, chrispap000.

Could you please describe what type of cable you are using to connect your TV to the laptop and provide the output of

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xrandr

and enclose the results in code tags.

The data you posted indicates the system is not picking up the fact your laptop has an HDMI port so some tweaks may be needed.
Graphics:
Device-1: NVIDIA G94GLM [Quadro FX 2700M] vendor: Hewlett-Packard driver: nouveau v: kernel
pcie: speed: 2.5 GT/s lanes: 16 ports: active: LVDS-1 empty: DVI-D-1,DVI-D-2,VGA-1

FYI: This is a bit on the warm side.
Sensors:
System Temperatures: cpu: 86.0 C mobo: 30.0 C gpu: nouveau temp: 54.0 C
Fan Speeds (RPM): N/A

[chrispap000]

Hello SMG and thanx for the reply.

The cable is a High Speed HDMI cable with Ethernet.

The output of "xrandr" is:

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Screen 0: minimum 320 x 200, current 1920 x 1200, maximum 8192 x 8192
LVDS-1 connected primary 1920x1200+0+0 (normal left inverted right x axis y axis) 367mm x 230mm
   1920x1200     60.00*+  59.88    59.95  
   1920x1080     60.01    59.97    60.00    59.96    59.93  
   1600x1200     60.00    59.95  
   1680x1050     60.00    59.95    59.88  
   1600x1024     60.17  
   1400x1050     59.98    60.00  
   1600x900      59.99    59.94    59.95    59.82  
   1280x1024     59.95    60.02  
   1440x900      59.89  
   1400x900      59.96    59.88  
   1280x960      60.00    59.99  
   1440x810      60.00    59.97  
   1368x768      59.88    59.85  
   1360x768      59.80    59.96  
   1280x800      59.99    59.97    59.81    59.91  
   1152x864      59.97    60.00  
   1280x720      60.00    59.99    59.86    59.74  
   1024x768      60.04    60.00    59.95  
   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    59.96    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    59.94  
   720x405       59.51    58.99  
   720x400       59.97  
   684x384       59.88    59.85  
   680x384       59.80    59.96  
   640x400       59.88    59.98    59.96  
   576x432       60.06  
   640x360       59.86    59.83    59.84    59.32  
   640x350       59.84  
   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  
DVI-D-1 disconnected (normal left inverted right x axis y axis)
DVI-D-2 disconnected (normal left inverted right x axis y axis)
VGA-1 disconnected (normal left inverted right x axis y axis)

Lastly I have also noticed the high temperature. I must check what is going on there.

Thank you again.

Chris

[SMG]

I am new to Linux. I have just installed Mint, but it cannot detect TV with HDMI.

Did you originally have Windows on this computer and you know for sure this combination with the same cable and TV worked?

What is the make and model of the TV and its preferred resolution?

Normally, I would suggest trying the proprietary Nvidia driver, but your GPU needs the Nvidia-340 which is not officially supported in LM21. (It is supported in LM20 versions.)

The documentation I found for the HP Elitebook 8730w indicates the following ports:

4 USB 2.0 ports, HDMI, eSATA, VGA, stereo microphone in, stereo headphone/line out, 1394a, power connector, RJ-
11/modem, RJ-45/ethernet, docking connector, secondary battery connector

so my guess is the DVI-D ports in the xrandr output are really HDMI (but I don't know why two are listed).

We can try "activating" the port to see if that helps. What is the output of

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ls /sys/class/drm/

[chrispap000]

Hello again,

Did you originally have Windows on this computer and you know for sure this combination with the same cable and TV worked?

Yes exactly. I used to have Windows and it worked.

What is the make and model of the TV and its preferred resolution?

It is a Samsung Model Code UE40H50000AW and resolution 1920 x 1080

The output is:

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card0          card0-DVI-D-2  card0-VGA-1  version
card0-DVI-D-1  card0-LVDS-1   renderD128

Thank you again,
Chris

[SMG]

It is a Samsung Model Code UE40H50000AW and resolution 1920 x 1080

The preferred way to have this work is just to attach the TV and it is recognized as it should be, but that is not happening.

The next option is to "enable" the port with a kernel parameter. If that works you should see the TV and have options to change resolutions.

If that option does not work, the next option is to enable the port and tell it to use an EDID for 1920 x 1080. In that case, that will be the only resolution you can use.

In either case, you will be adding one or more kernel parameter to grub. You can use the following information How to add a kernel parameter to temporarily or permanently add the parameter. When you add it temporarily, it adds it only for that current boot cycle, so if, for any reason, it seems to cause issues or it does not work, all you need to do is reboot to clear it. If you need more details than that topic provides, just let us know.

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card0          card0-DVI-D-2  card0-VGA-1  version
card0-DVI-D-1  card0-LVDS-1   renderD128

In your case we know you are using the HDMI port, but, for some reason the system is recognizing it (as per the above) as DVI-D. Usually, when more than one port of that type shows, we can use the 1 port and it works. However, it's a test and see situation so I can not guarantee what will work in your situation.

The first option would be to add the video=DVI-D-1:e kernel parameter to enable the port.

If that does not work, the second option would be to add two kernel parameters with a space between the two of them which will enable the port and tell it to use 1920 x 1080.

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video=DVI-D-1:e drm.edid_firmware=DVI-D-1:edid/1920x1080.bin

If neither of those work, you could try each option with DVI-D-2 instead of DVI-D-1.

Let us know if you need more details or have questions.

[chrispap000]

Hello again and thank you for your time,

I added temporary parameters for all 4 cases you mentioned. Even if xrandr command showed that the port was enabled and an unknown display was shown in the display window, I still was not able to see anything on screen.

Any other suggestions?

Thank you again,
Chris.

[SMG]

I added temporary parameters for all 4 cases you mentioned. Even if xrandr command showed that the port was enabled and an unknown display was shown in the display window, I still was not able to see anything on screen.

Could you please give more details on what this means?

One would normally be checking the Display app to see whether the screen shows and what options (if any) are available in the drop-downs. xrandr usually indicates a port is connected and the resolutions available or it is disconnected. If you could give more details about what each option showed, perhaps we can figure out what is happening or what else to try.