Running Ubuntu 16.10 on an Asus UX51 laptop; i915+Nvidia dual graphics using the Nouveau driver.
The machine has both VGA out and HDMI out; VGA works like a charm but HDMI is not even detected. Meaning that none of (xrandr, lspci, aplay, get-edid) even reports the HDMI port as present.
It's not clear to me whether or not this is an X or a kernel issue at the heart of it. I did, however, upgrade recently from 16.04 (where this bug was also present!) to see if that made any difference (which it did not) and I did try the proprietary Nvidia drivers (340 and 367) to see if either of them made a difference (which they did not).
I can assure you that I've read every relevant-sounding bug report and askubuntu question from the past year on this topic without discovering any fixes. Happy to try what needs to be tried.
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ApportVersion: 2.20.3-0ubuntu8.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: nate 4169 F.... pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 16.10
HibernationDevice: RESUME=UUID=335be542-977f-4cb1-8179-5320de24d1a0
InstallationDate: Installed on 2015-05-29 (620 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
MachineType: ASUSTeK COMPUTER INC. UX51VZA
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-37-generic.efi.signed root=UUID=101e01a2-4bc7-4e65-8310-ca87f12e0ba2 ro quiet splash usbhid.quirks=0x056a:0x033c:0x40000000 vt.handoff=7
ProcVersionSignature: Ubuntu 4.8.0-37.39-generic 4.8.16
RelatedPackageVersions:
linux-restricted-modules-4.8.0-37-generic N/A
linux-backports-modules-4.8.0-37-generic N/A
linux-firmware 1.161.1
Tags: yakkety
Uname: Linux 4.8.0-37-generic x86_64
UpgradeStatus: Upgraded to yakkety on 2017-01-21 (17 days ago)
UserGroups: adm bumblebee cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 12/03/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: UX51VZA.204
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: UX51VZA
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX51VZA.204:bd12/03/2012:svnASUSTeKCOMPUTERINC.:pnUX51VZA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX51VZA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.name: UX51VZA
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1660949
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.