XPS13Linux

While I don't currently have a link, depending on which model you have, CABC (Content Adaptive Brightness Control) can be disable officially, as well as unofficially. I have an XPS 13 9350 with a 1080P matte display, with CABC disabled through the display firmware version hack -- I completely forget the steps though, and it appears as Dell has released a version of the FHD [0] but I don't plan on reverting to the proper firmware just to patch it out again. 0. https://www.dell.com/support/home/ca/en/cabsdt1/drivers/driv... EDIT: https://github.com/advancingu/XPS13Linux/issues/2

There is a hack to disable this for the FHD matte 9350. I applied it to mine, and it's successfully disabled. Your mileage might vary, there are a few different panels apparently. https://github.com/advancingu/XPS13Linux/issues/2

A warning about Dell XPS (13") screens: if you take the matte display and like coding with dark color schemes it's horrible (but there might be a fix). It does loose all contrast on dark images. Saving battery they brighten the displayed image and lower the back light. This lowers 100% white to maybe a 80% white and makes for horrible contrast. For those affected: - you can test if you have this issue here: http://tylerwatt12.com/dc/ - for a fix you can go through the comments here: https://github.com/advancingu/XPS13Linux/issues/2 But be warned, the leaked firmware someone posted does not always work right (but fixed it for me). If I read the latest comment right there might be an official patch now (after years of this issue). (at least it doesn't say QHD in the file name) (this is what the last comment links to: http://www.dell.com/sup

There appears to be an official Dell tool to disable CABC on the FHD now. I'm happy about that. Going to give it a run in the morning. https://github.com/advancingu/XPS13Linux/issues/2#issuecomme... http://www.dell.com/support/home/us/en/04/drivers/driversdet...

If you get the FHD model, be aware that it has content adaptive brightness control (CABC) that can't be turned off. And Dell has so far refused to fix the issue. Extremely annoying if you're working with dark terminal screens and regularly tabbing into brighter windows. For more information see [0]. [0] https://github.com/advancingu/XPS13Linux/issues/2

FHD versions suck at inverted color schemes (white on black text). (The 4k version can be patched) When there as primarily black on the screen, the monitor dims the backlight and brightens the screen. This saves backlight, but cut's of the peak brightness (the white of your text). You can test if you are effected here: http://tylerwatt12.com/dc/ There is no patch for the FHD version, the problem exists since 2015, so for several generations of these things... https://github.com/advancingu/XPS13Linux/issues/2 Also a lot of coil whine and without up to date drivers a lot of bluescreens. Oh and the only big USB-C Dell Dock, it has no USB-C out, so it uses up all your USB-C. Not very future proof.

Re: audio noisiness, it was a kernel bug with the older (9343) version, did it happen again? https://github.com/advancingu/XPS13Linux/issues/11 It took a couple of months to get it fixed...

That's a good data point. I've been running 15.10 since I got it with minimal issues. This is another good resource: https://github.com/advancingu/XPS13Linux/issues

I got the trackpad being disabled when typing, see this discussion for reference: https://github.com/advancingu/XPS13Linux/issues/3#issuecomme... I haven't had any real problems with waking up from suspension, it only takes a little time sometimes. Disabling and re-enabling the WiFi should work anyway, if you lost your WiFi connection.

I've set up a public issue tracker on Github for the XPS 13 (2015) developer edition: https://github.com/advancingu/XPS13Linux/issues It should contain descriptions and some workaround for the most obvious issues that currently exist for running Linux on these machines.