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Would a hardware problem show up in a screenshot? It could be a picture of the screen, but the alignment is perfect.
by rootusrootus 7y ago
Would a hardware problem show up in a screenshot?
It could be a picture of the screen, but the alignment is perfect.
- cbg0 7y agoYes, it would show up, as that's how it's rendered, artifacts and all.
- bipson 7y agoInteresting argument. In fact if the fault would lie only between screen and the 'last mile' on the GPU you would be correct. But GPUs are slightly more than simple display renderers (at least nowadays), so (vast simplification) multiple renderings happen before the actual display output is generated and sent over the wire to the display. E.g. a failing memory on the GPU might only corrupt the output of a single window/application, since this window is using the GPU to render content, while everything else is fine.
- CountSessine 7y agoDepends on where the hardware defect is. If the defect is before the frame buffer (shaders, triangle setup, rasterization), then yes it will show up. If it’s after the frame buffer (CRTC, resampling and DAC), then no it won’t show up.
- rootusrootus 7y agoNow that is the answer I was hoping for. Thanks!