headphones – Macbook Air + Logitech G773 headset speeding up videos and not detecting mic input

I recently bought a Macbook Air (Late 2020 M1). I also bought a Logitech G773 headset. Since the receiver is USB-A, and the ports are USB-C, I have an adapter/hub that I am plugging the headset receiver into. If my computer is on when I plug the receiver in, the audio works, but the mic input does not (even after selecting the proper audio input/output in both the app and System Settings). The weirder thing is that when watching videos, such as on Youtube or elsewhere, the video will speed up and go back to normal speed, somewhat randomly.

Things I have tried:

  • Rebooting audio via this answer
  • Unplugging and plugging it back in.
  • Uninstalling/reinstalling the Logitech app
  • Using a different USB adapter (with no other devices)

Restarting fixes the problem, but it is kind of a pain to do it every time I plug in my headset. Has anyone had a similar issue and can offer a solution?

air travel – How to book a United Airlines ticket if my passport doesn’t have a last name?

For US Visa puporses, it looks like you need to use your single name as “last name” and FNU as first name. FNU means “first name unknow”. See https://in.usembassy.gov/visas/nonimmigrant-visas/ FAQ section. It’s likely that United will adopt the same process since they need to communicate booking data and Visa data to US immigration authorities. However, you should call and ask them to confirm.

However, it’s likely that you will run into a lot of issues and if possible you should try to get your Indian passport fixed before you travel. https://redbus2us.com/surname-blank-in-passport-first-name-as-fnu-in-us-visa-issues-solution/

air travel – What airport has the fewest regular commercial flights?

Its not beating the record that some of the other answers set, but there is an airport that might be notable because it is not in some sparsely populated place in the middle of nowhere or in some developing country, but right in the middle of densely populated Germany, right next to a medium sized (200k people) city.

I am actually not talking about BER, but about the equally funny planning disaster that is Kassel airport (KSF).

For some reason, about 15 years ago, local politicians in their hubris decided that their town needs a proper international airport and they spent a few hundred millions building one. Now to put this into perspective, there is an established regional airport, Paderborn/Lippstadt, about 60km away, in fact when they cancelled the very first commercial flight from Kassel, that is where they took the 6 people that booked it by car. Also keep in mind that Frankfurt is in the same federal state as Kassel and less than 2 hours away by train.

Right now its averaging about 4-5 flights per week, but there have been times when there have been no commercial passenger flights for months, yet still they were obligated to keep the empty terminal open and running (See this article).

air travel – What can you do to preserve a second-leg ticket if you notice that you are not going to be able to fly the first leg?

Recently I learned the hard way that Not flying the first leg of the journey – Company cancels the second-leg ticket, since companies do not allow to fly only the second flight. This is also something IATA explains in Coupon sequence and use.

I was flying from a city in Spain to a city in Portugal with TAP Air Portugal on a return ticket.

When about to take the first leg of the ticket we were several people, including my wife, our little baby and me. We did the check-in online, with my baby attached to my place (she is few months old, so she does not have a seat on her own).
When in the airport we went to the baggage drop area and were asked for the passports; we showed the ‘libro de familia’ (family book) that works to fly in a domestic flight in Spain, but they told us that is not enough to fly within the European Union. Since the baby did not have a passport, she could not fly.
After some discussion, my wife opted to stay with the baby (she needs breastfeeding, something I cannot give :P) and solve the issue, while I took the flight (to minimize the loss of money). Also, I had to redo the checking, since the baby was not flying with me anymore and I was given a ticket on my own.

So the schema is: leg 1, me flying, while my wife and baby staying.

Next day, my wife solved the problem and her and the baby flied to the city in Portugal with the same company.

Some days later we went to the airport in Portugal to take the second leg of the return ticket. To our surprise, my wife’s ticket had been cancelled because ‘she had not taken the first leg of the flight’. We had to buy another ticket for her and finally made it home.

I was quite curious about my baby not having to pay again for the ticket, since she already missed the first leg of the journey. However, my main question is: what can I do in the future to preserve the second-leg ticket if I notice that I am not going to be able to fly the first leg?

I assume this can be easily (and costly) solved with days in advance by changing your ticket. However, my question is about this happening while you are already in the airport and the flight is about to leave, without you in it.

display – Lag on external monitor using a Macbook Air 2017 with a Intel HD Graphics 6000 1536 MB and running macOs Big Sur 11.2.3: what could be the solution?

HOST MACHINE: Macbook Air 2017

GRAPHICS: Intel HD Graphics 6000 1536 MB

MACOS: Big Sur 11.2.3

Intel HD Graphics 6000:

Chipset Model: Intel HD Graphics 6000

Type: GPU

Bus: Built-In

VRAM (Dynamic, Max): 1536 MB

Vendor: Intel

Device ID: 0x1626

Revision ID: 0x0009

Metal Family: Supported, Metal GPUFamily macOS 1


Resolution: 1920×1080 (1080p FHD – Full High Definition)

UI Looks like: 1920 x 1080 @ 60.00Hz

Framebuffer Depth: 30-Bit Colour (ARGB2101010)

Display Serial Number: H9XZ103518

Main Display: Yes

Mirror: Off

Online: Yes

Rotation: Supported

Automatically Adjust Brightness: Yes

Connection Type: Analog VGA or Analog Over DVI-I

Adapter Firmware Version: 0,00

1) At home I use my mac connected to a SAMSUNG 2494HS via VGA + CableDeccon video adapter.
The default resolution is 1920×1080 at ~60HZ.

Recently ( maybe correlated to the new macOs update) I noticed some lag in the external monitor. The events occured only when I run VirtualBox (v. 6.1) and I increase the resolution: above a certain threshold the VM starts to lag.

It is not correlated to any specific VM, but is the same with any.

2) If I use the HDMI cable (whatever type) or I set ad unscaled resolution with VGA, the display looks blurry.

3) Last but not least, if I close the mac and use only the external display with the setting as 1) the VM does not lag any more.

What could be the problem and possible solutions?

I tried to unscale the resolution, use differents setting for the VM (different video adapter, memory size, processors…) but with no success.

air travel – Can I change the destination of the inbound flight of a round-trip ticket with Lufthansa?

Is this possible?

Sure. The question is how much LH will charge you for the change.

There is always two parts to a change: change fee plus the price difference between the new on and the old ticket.

The change fee may be waived but that depends a lot on the specific ticket that you bought and the associated fine print. In your case that seems to be a no-go since you are violating “The flight sequence remains unchanged” and most likely a few other conditions too.

You are always on the hook for the price differential between the old and the new booking. If you are lucky, the newer one is cheaper or the same price, but more likely it’s going to be more expensive, especially if the change occurs closer to the flight date. Note the caveat in the fine print: “The original fare is still available” . In my experience that’s rarely the case since fares change all the time.

Not sure exactly when you want to fly, but it looks like prices are currently picking up quite a bit for the June/July time frame. Airline prices are notoriously hard to predict and are sometimes very illogical (that’s why I’m flying lie flat international business tonight for less than $90/leg or $15/hour).

When the time comes to make the change, you just need to price it out and see where it ends up. As an alternative you can also look at one ways from SFO to DEN and keep your original ticket. A round trip SFO-DEN might be cheaper as a one-way as well. You can take the first leg and skip the second one (although their could be side effects if you have status with that airline).

You can also try to call LH and ask the question directly and have them recommend what and how to book for your specific case. Official Fare rules are incomprehensible to normal human beings and sometimes span 10s of pages, so calling about it is not unusual. If you are lucky you get a knowledgeable and helpful agent. If you do, ask for a transcript of the call and/or the conditions so you can pull it out when it’s change time.

air travel – How can I fly with a guitar?

In my experience I’ve found quite a few travellers with guitars, so it’s fairly common. Most seemed to use some form of rocket atttached to the back, but fuel for this is hard to come by in certain areas of the world, and often requires FAA approval to use in the States.


No seriously, lots of people do, and much like travelling with a snowboard it generally just goes into the oversize baggage area, often at no extra cost to you. This is both domestic and international. But it’s definitely important to check with your airline, as everyone has different rules – I’d hate to know what RyanAir would do to you if you tried with them ;]

air travel – Can I make repeated 90-day trips to a single Schengen country?

I recall someone saying that you can’t go to the same Schengen country as a tourist for 3 months over and over even if you don’t overstay a trip, because immigration thinks that it’s suspicious for some reason. I am a US citizen living in the US and want to visit the Netherlands every 180 days for a few years because I want to enjoy it a lot.

hygiene – Is sweating more common during air travel?

I also tend to feel sweaty during and after long flights. I’m not sure if there is any hard research showing that it is or is not more common. I would personally guess that it is, but I don’t have any evidence to back it up.

However, it’s certainly possible that certain people do sweat more. You say it’s the case for you, and I feel that it is for me personally as well. Why is this the case for some people?

Long time in one position against seat

You’re typically sitting in the same position for many hours. This means that there is little or no air circulation between your body and the seat. It also depends on the quality of the seat, but it’s quite common for it to get clammy due to your backside being pressed against the seat for long periods of time.

Long time, no shower

Canton to Sydney, which is quite a long trip.

In this example, you may be traveling for 35 hours or more. In that case, there is a simple answer: You’re going for quite a long time without showering. (It’s, of course, possible to shower during the layover or even on the plane, but most people don’t.)

Normally, most people shower/wash themselves at least once a day. Some people do it twice a day. There are good reasons for that. Sweat, salts, etc. accumulate on the body, causing various uncomfortable sensations for oneself as well as others. Long air journeys can take much longer than that, sometimes causing you to not shower for > 50 hours. Perhaps, if you went that long without a shower unrelated to flying, you would notice some buildup of sweat too.


This may not be something you (OP) personally suffer from, but many travelers do. Cold sweating is one of the symptoms of airsickness.


I don’t know if this applies to you, but a lot of people can get slightly stressed while going on long journeys. They have to pack everything, remember everything, perhaps get up in the middle of the night, have their documents in order, keep track of their passport and money, be on time for everything, pass security, customs, immigration, guard against theft, wait in lines, experience lack of sleep, etc. Most people (including me, certainly), can feel mildly stressed due to all this. It is a well known fact that stress increases perspiration.

Lack of sleep

Even if you are a seasoned traveler who don’t feel stressed at all, and even if you’ve managed to shower during your journey, it’s likely that your journey interferes with your sleeping patterns. You might get some sleep during your journey, but it’s not going to be the same quality that you would normally get. Lack of sleep may possibly cause increased perspiration. Your body is tired, and has to work harder to perform its normal functions.

Airplane air

Here’s a final point that I expect to be (and welcome being) challenged on, but I’m including it anyway: The air in airplane cabins is extremely dry. This may cause the body to compensate by sweating, etc. Of course, water also evaporates much faster in the dry air. However, only the water evaporates. The salts and other components of your sweat all remain on your skin/clothes. This may increase the feeling of being sweaty. (Again, I do feel that this last point is somewhat speculative, so I’m including it more as a hypothesis than a fact.)

Shower right before departing. If possible, shower during layovers. As @pnuts said, wear antiperspirant. Try to relax as much as possible during your journey, and try not to be in a hurry for or very worried about anything. Wear clothing that breathes well. Get up from your seat regularly and stretch a little bit. Bring extra sets of underwear/shirts/other clothing and change in the bathroom when you feel sweaty. You may even bring body wipes to clean your skin and reapply antiperspirant on clean skin. Do whatever you can to get enough sleep. If you can afford it, get business class which is much easier to sleep in. If you’re rich enough, and it’s available for your route, consider flight tickets that give you access to an in-flight shower.

Personally, I don’t bother with all of this (although I certainly do some of it). I’m just trying to answer the question on how to counteract excessive sweating, though. To which lengths you may want to go would depend on how important this is to you personally.