Hi, I just installed Kicad 7. When I print logic gates they show a weird symbol within.
First image is a snip from the schematic editor; second image is from the “print preview”.
I have no clue on what’s going on; I tried googling around but I cannot find the right words to describe this behavior (not a native english speaker here).
Any clue?
Can you post the version info - Help / About.
If you zoom in do you still see the strange lines? Are they also there on a print?
Thank you for answering!
Yes, they show up also when zooming in (see image).
Also they are there on my prints.
Application: KiCad Schematic Editor x64 on x64
Version: 7.0.5, release build
Libraries:
wxWidgets 3.2.2
FreeType 2.12.1
HarfBuzz 6.0.0
FontConfig 2.14.1
libcurl/7.88.1-DEV Schannel zlib/1.2.13
Platform: Windows 11 (build 22000), 64-bit edition, 64 bit, Little endian, wxMSW
Build Info:
Date: May 27 2023 02:48:13
wxWidgets: 3.2.2 (wchar_t,wx containers)
Boost: 1.81.0
OCC: 7.6.3
Curl: 7.88.1-DEV
ngspice: 40
Compiler: Visual C++ 1936 without C++ ABI
Build settings:
KICAD_SPICE=ON
Hello and welcome @andreamazzai
You are seeing the various sections that, when joined, form the symbol. See below:
I dismantled one and colored the sections for clarity.
I’m still not sure why you are seeing the outlines of each section inside the symbol.
Are the symbols from a Kicad library?
Please check to see if you get the same result from the 4000 library. 4001 & 4011 are good examples.
I know really nothing about how graphic acceleration works but can’t it be connected with using/not using Accelerated graphics. May be some incompatibility between KiCad asking graphic card to accelerate some task and how that task is really done.
It can be changed in Preferences - Preferences - Schematic Editor - Display Options - Rendering Engine.
Thank you for answering, jmk!
I experience the same issue with 4xxx series. The symbols come from the standard libraries, I did not tamper with them. See the jsut-added symbols here:
It is worth noting that Kicad 6.x did not show this weird behavior.
Thank you, Piotr!
I will try to disable acceleration.
As I just wrote to jmk, Kicad 6.x did not show this weird behavior. I am sure that Kicadf 6.x graphic acceleration was enabled.
You said you have the same bug when you export them to PDF (print and then select PDF printer)? Can you upload a PDF with this bug? (just to make sure it is a problem of KiCad or export, not a problem of your PDF reader and print preview of your OS).
You have at least 2 options to create a PDF, one is by using ctrl-P or Datei → Print and later you select Print as File and export a PDF. The other is by clicking Datei → Plot. Do you have the same problem in both of them or only with ctrl-P?
Hello Johanne, thank you for answering!
Sorry I am a new user and therefore not allowed to upload files or attach more that one image), hence find below the three snips “bundled” together.
On “File / Plot / PDF” the printout is fine.
On “File / Print / Print to MS PDF printer” I get the issue as snipped from Adobe Reader.
Odd enough, I just discovered that “File / Print / Print Preview” in Black/White shows no issue.
I am a bit puzzled. As I said, I never got this behaviour with Kicad 6, that I removed last weekend and installed v7.
OOPS! I was sure that I had uninstalled Kicad 6, but actually I did not… could this cause any conflict?
On Windows, you should be able to have V7 and V6 at the same time.
I have both in Win10
You have promoted yourself to “Basic User” with the time you have spent on this forum, see here, so upload away now 
Sure, here we go 
First attachment - print to PDF, Color
Second attachment - print to PDF, B&W
Third attachment - Plot, color
MS Print to PDF - color.pdf (85.9 KB)
MS Print to PDF - black white.pdf (83.8 KB)
BEAM v1-Clock.pdf (237.2 KB)
Thank you for looking into this,
Andrea
@andreamazzai : I think you have discovered a bug in the printing-code, I have replicated the unwanted lines in the print-output for two diffferent virtual pdf-printer drivers (edocprintpro & MS_Print_to_pdf).
I see this behaviour on version v7.0.5, but not on the development version v7.99
If you want you could open a gitlab-bugreport, this bug is well suited for a first bugreport (reproducible, can be good explained with some pictures).
For such a bugreport:
If not already, you will have to register with Gitlab before reporting the issue.
This is only a few painless minutes. Follow @mf_ibfeew 's instructions “Kicad > Help > Report bug”, then you will be asked to either log in, or create an account. Just follow the instructions.
I see a commit to 7.0 that should fix this, the latest Testing should include the patch
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