NextMarcus

There is a dedicated key for toggling the GPU. It communicates to the (Windows) MSi control panel. How can the GPU be toggled between integrated (power saving) and dedicated (maximum performance) from Linux?

How can the power consumption of a laptop be monitored from Linux? Windows has a MSi control center that allows monitoring power consumption in real time. Can it be done in Linux somehow?

I will take a look at the eventvwr. But I should update the driver. It might work, however, I wonder how a software update could fix this issue. It might just prevent crashes, but playback might not yet be possible. I wonder what about the 1440p/2160p videos cause the crashes in first place.

USB-D But they also need to consider physical connector limitations. The larger DC connector's tips have much larger conductor surface sizes, which allows them to power devices that need much higher voltages and currents well above 10 A, maybe even 20A, while USB-C ends at 5A. USB-B Micro ends at 3,1A as far as I know.

Correct. But that's another thing I wonder about. Asus usually has 19 V, Lenovo 20V and Dell and MSi 19.5V. I am not sure about Acer. But I do not believe that a difference of 0.5V will do any bad. At lease the connectors with same voltage should have the same size.

It happens on an 1080p display.

Like I said, 1440p has the same effect. Different browsers? Also hanging up or crashing.

About the YouTube crash: I do not experience the screen blackout and whiteout shown in that video.

No, it never worked. 1080p always worked, 2160p not. I forgot to mention: Playing an 1440p video recorded via a Galaxy Note 4 at original speed: Glitchy and stuttering video while the audio plays without any distortion or interruption. 1080p from the same Galaxy Note 4 played back flawlessly. Interestingly, playing 1440p at half the speed works fine the last time I tried. That's confusingly mysterious.

Like I said. But 1080p@60fps video can be played flawlessly. It also looks flawless at twice the playback speed, which would already equal 2160p 30fps by pixel count per second. This means 248.832.000 pixels. I am not sure, whether there is any frameskipping when playing back 1080p@120fps. But 2160p@30fps fails to play back somehow. I am sure, that the performance of the CPU+GPU is sufficient for 2160p playback at 30fps. Why does it fail? Forgot to mention: Surprisingly, a 2160p@15fps video fails playing back as well. It plays for the fraction of a second, then the video stops moving but the audio keeps playing. 2160p@15fps equals 1080p@60fps by pixel rate. Why does 2160p at 15fps fail while 1080p at 60fps works?

I forgot to complete that phrase.

Some Internet articles claimed that. But I also agree: Laptops who require more than 100W should just keep using the DC connector. Exactly. I hope manufacturers of gaming laptops that require more than 100W do not chop off the input wattage just for USB-C. And the DC connector is actually more reversible than USB-C due to being circular. The DC connector is perfectly fine in that case. The only thing that actually annoyed me about the DC connector is that different laptop vendors used slightly different connector sizes and diameters deliberately, which made their power supplies non-interchangeable. But Dell and MSi accidentally used the same connector size, of which the former unfortunately blocks charging from non-original power suppliers. More recent Lenovo laptops even had a new rectangularly shaped connector. And Asus netbooks also had an unusual (but reversible) rectangular connector that looks similar to USB-C. I am also not sure if the implementation costs on USB-C are higher than a DC connector, which could be a slight disadvantage for budget laptops. But high-end laptops should not switch to USB-C due to the significantly lower workload limit than the classic DC connector.

One of my middle-aged computers is from 2011 or 2012. It has an Intel Core i7 of the second generation and an AMD Radeon. I will look up the exact model number later, but probably a 6xxx model. That computer still works well, runs very fast, but I have noticed a strange behaviour playing back 2160p video footage: 1440p and 2160p playback on YouTube: System either hangs up (screen frozen forever) or crashes with BSOD like shown in this video (my PC also has AMD Radeon. I will look up the model number): VLC Media player and Media Player Classic: Plays the first half second of 2160p video smoothly, then the image gets frozen and only the audio plays. Same happens for 8K. VLC plays 1080p video at 60fps very smoothly at only 8% CPU usage (Intel Core i7 Gen2). It looks smooth on the screen, and VLC indicates 0 lost frames. I can play 1080p@60fps at twice the playback speed. Still zer0 trouble. 2160p video at 30fps is only twice the number of pixels per second of 1080p@60fps and the same as 1080p@60fps◄×2, yet it fails playing back properly. Can anyone technically explain what is wrong?

Did the S8+ use 12V or 5V? Did it charge as quickly as using the original Samsung charger (which used Qualcomm's Quick Charge 2.0 negotiation standard, 9V 1.67A)?

Finally somebody explained this. I was annoyed by people referring 16:9 1440p as 2K. 2K means ~2000 pixels. This could be DCi (2048) or ordinary (1920). It was originally meant for DCi, but can be used interchangeably. But 1440p 16:9 is certainly 2,5K due to 2560 pixels of width (in rare occasions 2592 pixels).