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Good luck web devs (lemmy.world)
submitted 1 year ago* (last edited 1 year ago) by Zangoose@lemmy.world to c/programmer_humor@programming.dev

Alt text:Twitter post by Daniel Feldman (@d_feldman): Linux is the only major operating system to support diagonal mode (credit [Twitter] @xssfox). Image shows an untrawide monitor rotated about 45 degrees, with a horizontal IDE window taking up a bottom triangle. A web browser and settings menu above it are organized creating a window shape almost like a stepped pyramid.

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[-] AgnosticMammal@lemmy.zip 11 points 1 year ago

I was looking into this earlier to try fixing a display that was being offset on an old tv screen. The display was going off the left side of the TV, causing a black bar on the right side.

I was trying xrandr, and fixed it somewhat by offsetting the display back, but somehow it did not fix the right side - it seemed as if the display had went under the black bar.

But yeah you can offset, stretch, skew and rotate with xrandr

[-] lynx@sh.itjust.works 12 points 1 year ago* (last edited 1 year ago)

The --rotate normal,inverted,left,right does not work, but you can use the transform option to achieve the same effect. To create the transformation matrix you can use something like: https://angrytools.com/css-generator/transform/

  • for translateXY enter half the screen resolution
  • don't copy the generated code, it has the numbers in the wrong order just type out the matrix row wise.

The final command looks like this:

xrandr --output screen-1 --transform 0.87,-0.50,960,0.50,0.87,540,0,0,1

To restore the original use (type this in first, because if you screw up you might not be able to see anything anymore):

xrandr --output screen-1 --transform 1,0,0,0,1,0,0,0,1

I tested it on x11.

[-] Auzymundius@lemmy.world 2 points 1 year ago

Did you check the actual TV settings? Some of them let you adjust where picture is displayed iirc.

[-] AgnosticMammal@lemmy.zip 1 points 1 year ago

It only had two modes for the VGA source, 16:9 and 4:3. The 16:9 is the right ratio for the laptop but had the offset issue. The 4:3 makes it stretched out / squashed, but it doesn't have the offset issue.

this post was submitted on 28 Dec 2023
1481 points (99.3% liked)

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