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Re: [LUG] HDMI

 

On the dual monitor issue. I ran xrandr and got this:

Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 8192 x 8192
eDP-1 connected primary 1680x1050+0+0 (normal left inverted right x axis y axis) 473mm x 296mm
 Â1680x1050   59.88*+ Â59.95 Â
 Â1600x1024   60.17 Â
 Â1400x1050   74.76  Â70.00  Â59.98 Â
 Â1280x1024   75.02  Â60.02 Â
 Â1440x900   Â74.98  Â59.89 Â
 Â1280x960   Â60.00 Â
 Â1360x768   Â59.80  Â59.96 Â
 Â1152x864   Â75.00  Â75.00  Â70.00  Â60.00 Â
 Â1024x768   Â60.04  Â75.03  Â70.07  Â60.00 Â
 Â960x720    75.00  Â60.00 Â
 Â928x696    75.00  Â60.05 Â
 Â896x672    75.05  Â60.01 Â
 Â960x600    60.00 Â
 Â832x624    74.55 Â
 Â960x540    59.99 Â
 Â800x600    75.00  Â70.00  Â65.00  Â60.00  Â72.19  Â75.00  Â60.32  Â56.25 Â
 Â840x525    74.96  Â69.88  Â60.01  Â59.88 Â
 Â800x512    60.17 Â
 Â700x525    74.76  Â70.06  Â59.98 Â
 Â640x512    75.02  Â60.02 Â
 Â720x450    59.89 Â
 Â640x480    60.00  Â75.00  Â72.81  Â75.00  Â59.94 Â
 Â720x400    70.08 Â
 Â680x384    59.80  Â59.96 Â
 Â576x432    75.00  Â75.00  Â70.00  Â60.06 Â
 Â512x384    75.03  Â70.07  Â60.00 Â
 Â416x312    74.66 Â
 Â400x300    72.19  Â75.12  Â60.32  Â56.34 Â
 Â320x240    72.81  Â75.00  Â60.05 Â
HDMI-1 disconnected (normal left inverted right x axis y axis)
HDMI-2 disconnected (normal left inverted right x axis y axis)
DP-1 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 473mm x 296mm
 Â1680x1050   59.88*+ Â59.95 Â
 Â1280x1024   75.02  Â60.02 Â
 Â1440x900   Â74.98  Â59.89 Â
 Â1280x960   Â60.00 Â
 Â1152x864   Â75.00 Â
 Â1024x768   Â75.03  Â60.00 Â
 Â832x624    74.55 Â
 Â800x600    75.00  Â60.32  Â56.25 Â
 Â640x480    75.00  Â59.94 Â
 Â720x400    70.08 Â

Not sure if it has relevance?

Rich


On 2 September 2017 at 17:11, Richard Brown <rich@xxxxxxxxxxx> wrote:
Hi

Thanks for the reply. Have installed newer driver stack. And here is the list of what is happening:

1. Installed Ubuntu via HDMI and all seemed fine
2. AFter install rebooted and display and sound working via HDMI
3. Starting installing additional drives etc during which sound stopped working. Just stopped.
4. Rebooted to try to restore sound. No video.
5. Attached a VGA cable - video restored - no sound. I could simply run a headphone jack cable to the monitor and then I would have sound and video but decided to fix HDMI. At this point I'm wondering whether I should just forget it!

Applied the update above. Removed the VGA cable on reboot. There is simply an error message on the monitor saying no signal. This is with the HDMI cable in. Reconnected the VGA cable. One of the bizarre problems I'm having is that the computer assumes I have 2 monitors attached. One via VGA and one via HDMI even though the HDMI cable is not attached. In system settings I have to mirror the display or I can't see half of my desktop!

Thanks for all the help. Is it worth at this point simply connecting a speaker jack cable and use VGA etc.

Rich


On 2 September 2017 at 16:22, mr meowski <mr.meowski@xxxxxxxx> wrote:
On 01/09/17 07:11, Richard Brown wrote:
> Hi
>
> Linux rich-desktop 4.10.0-33-generic #37-Ubuntu SMP Fri Aug 11 10:55:28
> UTC 2017 x86_64 x86_64 x86_64 GNU/Linux


Can we just clarify a sec exactly what you mean by "monitor not working
on HDMI"? Do you mean it's completely non-responding, or does the
BIOS/EFI display during boot, text mode boot messages show up and only X
doesn't work? Does the system boot at all when the monitor is on HDMI?
Presumably it's just sat there waiting for input (this is what you need
SSHD running for to find out) but is actually operational. Can you
access the other VTTYs by hitting CTRL+ALT+Fx? With the HDMI connected
monitor non-responsive, after booting the machine try hitting
CTRL+ALT+F4 a couple of times - it *should* drop you to a text mode
login prompt (but probably won't thanks to the way Ubuntu/systemd have
messed with stuff over the years).

I'm loathe to give you more advice without knowing a bit (actually,
quite a lot) about what's going on here.

That being said, it certainly won't hurt also installing a slightly
newer patched Mesa and friends. A 4.12 kernel would also be a good idea
but thanks to Ubuntu being Ubuntu they as usual haven't bothered
releasing a trivially installable mainline version yet.

Kabylake and newer silicon is still a bit sketchy in terms of support
I'm afraid (in all OS's, including Windows), although you really
shouldn't be having this many issues just getting a basic HDMI display
up and running out of the box.

Install newer driver stack:

sudo add-apt-repository ppa:oibaf/graphics-drivers
sudo apt-get update
sudo reboot

Cheers
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--
Kind Regards

Richard Brown



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Kind Regards

Richard Brown
07747 343637
http://gucu.org.uk/
http://littlebigfoot.org.uk/

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