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by niksnie
Mon May 06, 2019 5:01 am
Forum: Official Foundation Display
Topic: Touchscreen red & blue colors swapped
Replies: 8
Views: 1166

Re: Touchscreen red & blue colors swapped

Thank you very much 6by9, I believe I was using the fake kms driver vc4-fkms-v3d which worked on an HDMI screen I was using before. I can imagine that now that I've introduced the dsi display that is probably not that well tested. Stubbed my toe on some unrelated problems, but I think that's enough ...
by niksnie
Fri May 03, 2019 2:44 am
Forum: Official Foundation Display
Topic: Touchscreen red & blue colors swapped
Replies: 8
Views: 1166

Re: Touchscreen red & blue colors swapped

Your NixOS clearly has a bug in a driver. I'm a little confused by what this means since I'm building the linux source tree directly from the raspberry pi github repo, but I'd appreciate any pointers or diagnostic methods anyone might be willing to share to track down the issue. (Note: I absolutely...
by niksnie
Thu May 02, 2019 9:00 pm
Forum: Official Foundation Display
Topic: Touchscreen red & blue colors swapped
Replies: 8
Views: 1166

Re: Touchscreen red & blue colors swapped

How can you say that without testing Raspbian on the Raspberry that exhibits the failure with NixOS? It could easily be due to a hardware fault (dry solder joint? or broken ribbon cable, or broken display) on that one only. Sorry, I think there's a slight miscommunication. I'm saying that I have in...
by niksnie
Wed May 01, 2019 9:04 pm
Forum: Official Foundation Display
Topic: Touchscreen red & blue colors swapped
Replies: 8
Views: 1166

Re: Touchscreen red & blue colors swapped

For the purpose of troubleshooting and diagnosis (not to insist that you adopt an alternative Operating System), perhaps perform an experimental installation of the Raspberry Pi Foundation recommended and supported Raspbian Stretch Operating System. Because at present you don't know if the problem ...
by niksnie
Wed May 01, 2019 4:41 pm
Forum: Official Foundation Display
Topic: Touchscreen red & blue colors swapped
Replies: 8
Views: 1166

Touchscreen red & blue colors swapped

Hi, this is a slightly unusual support request, so I don't know if anyone will be able to help me (especially since I'm a little in over my head). I'm running NixOS with the raspberry pi linux kernel at 4.19.37. (The reason for NixOS is that it allows me to deploy software to raspberry pi's around m...

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