Linux mint 17 no sound at all - audio

I'm new to linux mint, I have been working on it for a week now and the sound is not working at all. I tried a lot of the solutions suggested online but no luck.
Can anyone guide me where the problem might be or how to figure it out.

Have you checked if you have the right audio device enabled in the Sound Settings menu?

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trouble during reinstall hololens unseccessful

i get into a trouble. A few days ago i bought a hololens 2. It was necessary to reinstal that but during reinstallation there were a error and reinstallation wasnt successfully done. Now i wasnt to run the glasese it isnt able to detect device in pc. during a charging still light just first led. I try lots of way to solve that but without success. please could you give me any advice ?
tnak you
jarda
i used advance recovery companion automatic and manual detecting. No feedback from this SW. If i try to reset hololens in a device manager there isnt a hololens recovery device
For this one, best advice is to open a direct support ticket with Microsoft for hardware support:
aka.ms/HLSupport
The Microsoft support team can validate the hardware and assist further.
Thanks,
Nathan

jitsi cannot share certain applications (screensharing)

the problem I'll be describing might be caused by different reasons:
on linux opensuse leap 15.1 gnome (wayland) I can share e.g. mupdf but not evince or libreoffice in chromium jitsi session with screen share application window
another participant on windows tried to share a pdf document using microsoft office 365 and it seemed to show on his browser, but not on the other conference participants' browsers (one chromium on linux as in 1., the other firefox on windows), so he could not share his screen
I could not find any information on this topic using search machines. So I would appreciate if there is any answer on this out there in the community.
Looking forward to solving this ...
Cheers
JFM
PS: on the setup described in 1. also obs studio fails to screencast, maybe there is something related to this system setup causing this problem, some video driver setting e.g.?
This is probably related to Wayland, which has more restrictions than classic Gnome. Since you are having the same issue with OBS this sounds like this a classic Wayland permission issue.
I know they are working on implementing screen sharing support via pipewire but no idea how far this is.
You might try to switch back to Gnome on the X-Server until this is properly implemented.

No sounds when using browsers

I updated my operating system to Windows 10 then I changed sounds to WASAPI. Now there is no sounds when using browsers (Chrome & Edge).
I succeeded to solve the problem. I found out that after "playing" few times with the sound settings they seem to change but actually nothing happens. So I rebooted my PC selected USB HEADSET ... as default device and everything started to work. Now it seems that this is a bug in Windows 10. Can someone else confirm this?

How do i change the resolution in Kubuntu 14.04

I just installed Kubuntu 14.04 on my HP laptop, but the resolution is off. Everything is way too big...and when i go to my settings, the only resolution available is 800x600....Can anyone please help me fix that.
Also, i have searched online but have not found anything that helps.
You need to change graphic driver. Unfortunately you provided not enough information to give you correct answer. With what you said I can only suspect that you probably don't have intel build in graphic card. It should work immediately. I assume you have nvidia or ati graphic card.
If yes go to Settings > Repositories > Additional Drivers tab and select the correct driver, and click Apply changes.

I cannot run windows phone 8 emulator

http://i.stack.imgur.com/rfDod.png
Dear Experts,
I am a newbie to windows phone development and when running the project on VS2012, I get this error message (as shown in the link above)and I am not able to resolve it. Trying playing around with the settings on BIOS without any result.
Please assist me. Thanks a lot.
Regards,
Mohammed Mohsen
Did you check if Hyper V is supported by your hardware ? you can read this to get an idea about how to check, that might be the cause

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