Solved Suddenly in mono sound?

richcane

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My work laptop, which is a HP EliteBook 8570w using the IDT HD Audio driver, suddenly switched to mono sound the other day. Spent ages trying to fix it to no avail, and today I decided to reinstall the driver. After reinstalling the driver it was instantly obvious that it hadn't fixed the issue, but on further inspection I realised that rather than just outputting in mono, it now only plays the left channel through the right earphone and the right channel is not outputted at all.

Any advice? I obviously can't just reinstall windows.
 

My Computer My Computer

At a glance

Enterprise x64i716gb
Computer type
Laptop
Computer Manufacturer/Model Number
HP
OS
Enterprise x64
CPU
i7
Memory
16gb
My immediate reaction would be to do a System Restore to a point in time when things were OK, not mono.
 

My Computer My Computer

At a glance

Windows 7 Home Premium SP1, 64-bitIntel Skylake i5-6600K, not overclocked8 GB HyperX DDR4-2666 (2 x 4 GB)none; graphics are integrated on CPU
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Ignatz Special; 4 speed manual gearbox; factory air conditioning; one of one
OS
Windows 7 Home Premium SP1, 64-bit
CPU
Intel Skylake i5-6600K, not overclocked
Motherboard
AsRock Z170M Extreme 4, micro ATX
Memory
8 GB HyperX DDR4-2666 (2 x 4 GB)
Graphics Card(s)
none; graphics are integrated on CPU
Sound Card
onboard: Realtek ALC1150; external: USB Behringer UF0-202
Monitor(s) Displays
Dell S2340M 23 inch IPS
Screen Resolution
1600 x 900
Hard Drives
System: Crucial MX100 series SSD, 128 GB;
Data: Samsung Spinpoint 103SJ, 1 TB;
Backup: WD Caviar Green WD30EZRX-00D8PB0, 3 TB
PSU
Rosewill SilentNight 500 watt fanless, semi-modular
Case
Antec Solo II
Cooling
Noctua NH-U12S; Noctua F12 intake, Noctua S12A exhaust
Keyboard
Microsoft 200 6JH-00001 USB
Mouse
Dell or Microsoft optical wired; USB
Antivirus
Microsoft Security Essentials and Malwarebytes Premium
Browser
Pale Moon
Other Info
All fans PWM; speeds at idle: CPU circa 500 rpm; intake circa 600 rpm; exhaust circa 600 rpm; CPU temps 27 idle and 47 C load in a warm room (27 C/81 F) when running Intel Extreme Tuning Utility stress test.
If I was on my own machine that is what I would do.
 

My Computer My Computer

At a glance

Enterprise x64i716gb
Computer type
Laptop
Computer Manufacturer/Model Number
HP
OS
Enterprise x64
CPU
i7
Memory
16gb
So I had a bit of a f*ck it moment and did it anyway, restored to a few days after I got the laptop at which point the sound was fine, still no dice.

Edit: Just tested, at least it's back in actual mono now playing both channels through the right earphone.
 

My Computer My Computer

At a glance

Enterprise x64i716gb
Computer type
Laptop
Computer Manufacturer/Model Number
HP
OS
Enterprise x64
CPU
i7
Memory
16gb
I just looked through all of my audio settings in Control Panel and didn't see anything that would allow me to deliberately choose mono. I have Realtek audio, not IDT.

Do you see any setting where you could choose mono if you actually wanted mono?

I assume you get mono, regardless of whether you are using any particular set of headphones or speakers?

What precludes you from running System Restore on a work laptop?

I guess it could be a hardware failure, possibly a bad cable connector that now only allows mono.

Other than that, I'm out of ideas.
 

My Computer My Computer

At a glance

Windows 7 Home Premium SP1, 64-bitIntel Skylake i5-6600K, not overclocked8 GB HyperX DDR4-2666 (2 x 4 GB)none; graphics are integrated on CPU
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Ignatz Special; 4 speed manual gearbox; factory air conditioning; one of one
OS
Windows 7 Home Premium SP1, 64-bit
CPU
Intel Skylake i5-6600K, not overclocked
Motherboard
AsRock Z170M Extreme 4, micro ATX
Memory
8 GB HyperX DDR4-2666 (2 x 4 GB)
Graphics Card(s)
none; graphics are integrated on CPU
Sound Card
onboard: Realtek ALC1150; external: USB Behringer UF0-202
Monitor(s) Displays
Dell S2340M 23 inch IPS
Screen Resolution
1600 x 900
Hard Drives
System: Crucial MX100 series SSD, 128 GB;
Data: Samsung Spinpoint 103SJ, 1 TB;
Backup: WD Caviar Green WD30EZRX-00D8PB0, 3 TB
PSU
Rosewill SilentNight 500 watt fanless, semi-modular
Case
Antec Solo II
Cooling
Noctua NH-U12S; Noctua F12 intake, Noctua S12A exhaust
Keyboard
Microsoft 200 6JH-00001 USB
Mouse
Dell or Microsoft optical wired; USB
Antivirus
Microsoft Security Essentials and Malwarebytes Premium
Browser
Pale Moon
Other Info
All fans PWM; speeds at idle: CPU circa 500 rpm; intake circa 600 rpm; exhaust circa 600 rpm; CPU temps 27 idle and 47 C load in a warm room (27 C/81 F) when running Intel Extreme Tuning Utility stress test.
I just looked through all of my audio settings in Control Panel and didn't see anything that would allow me to deliberately choose mono. I have Realtek audio, not IDT.

Do you see any setting where you could choose mono if you actually wanted mono?

I assume you get mono, regardless of whether you are using any particular set of headphones or speakers?

What precludes you from running System Restore on a work laptop?

I guess it could be a hardware failure, possibly a bad cable connector that now only allows mono.

Other than that, I'm out of ideas.

Nowhere to choose mono, and yes I get mono in all circumstances as far as I can tell. These headphones are brand new, as is the laptop, so I'm doubtful that it's a hardware failure.

I'm a software developer amongst other roles, so a lot of different software gets installed all the time. That's why I didn't want to do it, but I looked at affected programs and it didn't really matter, so...

As am I ...


I've had this issue before with RealTek, it's easier to fix with that. Never used IDT before. It has an odd controller called SRS HD Audio as well, which appears to act as a fairly pointless replacement for Windows' own sound settings, but I can't find a way to uninstall it as it appears to be bundled with the IDT driver.
 

My Computer My Computer

At a glance

Enterprise x64i716gb
Computer type
Laptop
Computer Manufacturer/Model Number
HP
OS
Enterprise x64
CPU
i7
Memory
16gb
Turns out those brand new headphones were broken. That's annoying.
 

My Computer My Computer

At a glance

Enterprise x64i716gb
Computer type
Laptop
Computer Manufacturer/Model Number
HP
OS
Enterprise x64
CPU
i7
Memory
16gb
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