After research I’ve found that not only me is struggling with this device, and after having experience with two 9550 i7 4k I suspect that this device was released in hurry without proper QA and probably because of that Dell has introduced a successor 9560 what as far as I know didn’t inherit problems of predecessor.
I decided to have one due some reasons:
- I prefer Linux / Windows system rather than macOS
- I had good experience with Dell before
- I tried to have something powerful and light (I still use Asus K95N what is questionably mobile)
- I wished to have 4K
- Battery life
After having this deice almost 1 year, I wouldn’t buy 4k display, Windows and Linux have problems with supporting HIDPI and LowDPI displays at the same time (link).
#1 Problem of brand new device
In many cases I have to double verify if the problem it’s not me. I mean I have highly customized system, like custom shell, own entries in system PATH, some tools what I use day by day.
Subtle flickering of screen
This issue was present when display was dimmed, it was pretty annoying at night, so that a comfortable work wasn’t possible. Fortunately this issue has been fixed with some of the recent BIOS update.
So when I started to see that PC randomly freezes I did reinstall, then I did Linux installation, then I started to search on the Internet if somebody has the same problem. Apparently yes, many of people. In most cases people were pointing on SSD Samsung drivers, nVidia GPU or WiFi card. Unfortunately symptoms weren’t exactly how they described. Most typical example for me was watching YouTube video, then any IO stopped to work but video was playing nice, when the video went out of buffer it stopped to play.
Misaligned hole for Jack
The problem was that, when I plugged it headset (any jack device) the right channel wasn’t playing. I had to use a file to expand a hole, so that any pressure was applied on jack and I started to play a sound correctly on both channels.
After having all of above you can imagine my frustration, fortunately when I asked Dell on FB what to do, they helped me. So my warranty repair included:
- Changing Motherboard
- Changing SSD
- Changing WiFI