Chosen Solution
When I plug in my headphones to the analog port on the side, I get audio from both my computer speakers and the headphones that I just plugged in. I have uninstalled and reinstalled the most up to date Realtek HD audio manager (which also came preinstalled when I bought it years ago with no problems at all) from Realtek. When I open the Realtek HD audio manager, I open in a speakers tab (no other tab), with a greyed out analog section on the right and no advanced settings option. I have the latest Windows 10 update. I am using Realtek High Definition Audio driver version 6.0.1.7564. I have read multiple forums asking the same thing (with different motherboards and computer setups) and they all say to uninstall and reinstall drivers, update drivers, and go to the advanced settings. I don’t have the advanced settings option and already have reinstalled and updated. Not sure what to do from here.
I am Editing this a few weeks after posting. I just found something else that might help. When I go to the speaker properties of the output audio device that I am using, Environments, and check disable all sound effects, the sound becomes much more bold and a whole lot better. but if I pause something and leave it for a minute where there is no sound, I reverts to its poor sound that it had before the disable all sound effects box was checked. the box is still checked but when I uncheck it the recheck it the sound is much better until I leave it again. I have no idea what could be the cause this.
Hi @jusse, I’m wondering if the headphone jack is faulty and needs to be replaced. Usually when headphones are plugged in, depending on the type of jack used and the circuit design, it either mechanically cuts off the audio to the laptop’s speakers and redirects it to the headphones or an internal contact in the jack sends a signal to the audio controller to switch the audio away from the speakers and onto the headphones. Here are some guides that may be of some help. Toshiba Satellite C55Dt-A5306 Repair guide Toshiba Satellite C55-A5140 Headphone jack Replacement guide Headphone socket - (supplier example only). Just search online for Satellite C55D Audio jack to get suppliers that suit. I realize that the example only says C55 but couldn’t find any that specifically said C55D or even C55A or C55B etc so maybe it is the same for all C55 models
