Suddenly today, no HDMI on both Ubuntu 12.04 and Windows 7. What is HDA driver?

Posted by Mike on Ask Ubuntu See other posts from Ask Ubuntu or by Mike
Published on 2013-11-03T17:33:12Z Indexed on 2013/11/04 22:13 UTC
Read the original article Hit count: 231

Filed under:

12.04

|

drivers

|

sound

|

hdmi

In the past, I just plug in hdmi, then boot laptop, and I have display on tv. Today my tv reads as "No Signal". When I go into "sound" on dashboard, there is No HDMI option. I don't understand what could have changed in the past few days. I also have Windows 7 on this machine, and I have same issue on there as well. In Ubuntu I scanned for drivers, and it asked if I wanted to activate HDA driver for DKMS. I'm not sure what that is. I googled and it looks like an audio driver. In Windows, Its says driver is up to date.

© Ask Ubuntu or respective owner

Related posts about 12.04

Wipe 12.04/Windows 7 dual boot setup and start fresh new 12.04

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I have an Asus u56e laptop running dual boot setup, Windows 7 and 12.04. I had Windows 7 first. I was wondering what's the easiest way possible to erase/format my drive (500GB) so that it deletes Ubuntu and Windows 7 so I can reinstall 12.04 onto my whole drive? Does the Ubuntu Live CD help make this… >>> More
In 12.04: Failed to load session 'ubuntu' [closed]

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
Possible Duplicate: There's an issue with an Alpha/Beta Release of Ubuntu, what should I do? I'm using 12.04 beta. Today I was prompted to install some updates, which I did, followed by a reboot. On reboot, X starts, but all I see is a single dialog window in the middle of the screen… >>> More
Will final version of 12.04 use the power management changes found in kernel 3.3

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I have seen in some version of Ubuntu that instead of making a huge change to update to the latest kernel, they take some of the good stuff out of it, for the sake of stability and put it on a previous version. In this case, kernel 3.3 has seen some very good power management enhancements that are… >>> More
Wired PS/2 Keyboard and Mouse do not work in 12.04 Live CD or after fresh 12.04 install - Foxconn D270S Atom Motherboard

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
My Wired PS/2 keyboard and mouse do not work in 12.04, either in a fresh install or from the Live CD. A USB keyboard and mouse will work. The PS/2 keyboard and mouse will work using the same hardware and a fresh 10.04 Ubuntu install or a fresh Windows 7 install. The motherboard is a Foxconn D270S… >>> More
Difference between 12.04 and 12.04.1

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I recently did a fresh install of Ubuntu 12.04 two days ago. Or at least I thought it was 12.04, but actually 12.04.1. Now I'm having errors popping up from the grub loader. Error: no video mode activated which was apparently resolved in this bug# 699802. However these workarounds are for 11.xx… >>> More

Related posts about drivers

How do I remove a root kit from Windows XP?

as seen on Super User - Search for 'Super User'
I was looking for root kits following these instructions http://computersight.com/software/how-to-manually-remove-rootkit/ and saw this in my boot log: Loaded driver \SystemRoot\System32\Drivers\awhk9fmc.SYS I tried to search for that filename in Google but there was absolutely nothing found. I… >>> More
What is the difference between nvidia-graphics-drivers and nvidia-graphics-drivers-updates

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I see that there are two packages nvidia-current and nvidia-current-updates. The apparently stem from nvidia-graphics-drivers and nvidia-graphics-drivers-updates respectively: https://launchpad.net/ubuntu/+source/nvidia-graphics-drivers https://launchpad.net/ubuntu/+source/nvidia-graphics-drivers-updates I… >>> More
Compat Wireless Drivers Centrino N-2230

as seen on Super User - Search for 'Super User'
So I am using linux and am having trouble installing the Compat Wireless drivers Hardware: Intel Centrino N-2230 OS: Linux Mint 64bit (kernel 13.08-generic) I followed this link http://www.mathyvanhoef.com/2012/09/compat-wireless-injection-patch-for.html Output: apt-get install linux-headers-$(uname… >>> More
Link between low level drivers and tty drivers

as seen on Stack Overflow - Search for 'Stack Overflow'
I was writing a console driver for linux and I came across the tty interface that I need to set up for this driver. I got confused as to how tty drivers are bound with low-level drivers. Many times the root file system already contains a lot of tty devices. I am wondering how low-level devices can… >>> More
Kernel Error during upgrade or update commands

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I am getting these errors during sudo apt-get update and upgrade... I tried all possible options no success. I recently upgraded to 13.04 and had problems with Broadcom WiFi. Fixed tat issues using the clean script... but looks like it did not install the Kernel properly.. Here is the o/p of the few… >>> More