Strange image artefact comes with spell-check indication. about signal-desktop HOT 13 CLOSED

@DiagonalArg Thanks. Maybe see if you can get it to happen when forcing Desktop not to use graphics hardware with --disable-gpu?

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Ooof, this looks pretty bad. Did it start in 6.42.0 version or did you see it with 6.41.0 or before too?

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I'm feel like I've seen this for a while, but please don't count on my memory with this. (Sry I can't be clearer.)

from signal-desktop.

Here's another:

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Are you running with hardware acceleration? Does it still happen if you disable that and use software rendering?

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Thinkpad W530.

Ubuntu 22.04, Settings:

Graphics: NVE7 / Mesa Intel® HD Graphics 4000 (IVB GT2)

My understanding is that Ubuntu uses integrated graphics by default. I do have the nouveau drivers though, and can switch an application to nvidia using DRI_PRIME=1. (I haven't done that with Signal, or anything else for that matter.)

$ lsmod | grep -E 'i915|nouveau'
nouveau              2830336  1
mxm_wmi                16384  1 nouveau
i915                 3899392  89
drm_buddy              20480  1 i915
drm_ttm_helper         16384  1 nouveau
i2c_algo_bit           16384  2 i915,nouveau
ttm                   110592  3 drm_ttm_helper,i915,nouveau
drm_display_helper    212992  2 i915,nouveau
cec                    94208  2 drm_display_helper,i915
drm_kms_helper        249856  4 drm_display_helper,i915,nouveau
drm                   700416  35 drm_kms_helper,drm_display_helper,drm_buddy,thinkpad_acpi,drm_ttm_helper,i915,ttm,nouveau
video                  73728  3 thinkpad_acpi,i915,nouveau
wmi                    40960  5 video,wmi_bmof,think_lmi,mxm_wmi,nouveau

from signal-desktop.

Ok, so the answer is yes, I get the same thing with the --disable-gpu switch:

from signal-desktop.

@DiagonalArg This is very likely an Electron issue, since we don't control the rendering of that red squiggle. For the best chance of getting this fixed, you can help by filing a bug on their project with an Electron Fiddle showing a minimum repro, and providing all of your computer's details. It's especially interesting that it reproduces when hardware acceleration is disabled.

You can also try Chrome or Chromium, to see if the same thing reproduces there, and file issues on those projects. Probably a better chance of getting low-level stuff like this fixed if you go directly to the source!

from signal-desktop.

@scottnonnenberg-signal / Ok, thanks. I'm willing to give it a try, but I'm a bit unclear on the concept. I installed Signal and run it, that's all I know. (Other than that the lap/desktop app is in some way browser based.) How would I try Chromium to see if I get the same thing? Or do you mean that I should look for a text box on some website, using Chromium, and see if cutting/ pasting produces similar results?

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look for a text box on some website, using Chromium, and see if cutting/ pasting produces similar results?

Yup, this seems like a good idea! Just find a large text box (maybe like the one you're replying in here on GitHub!) and get those red squiggles to appear!

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Now that I went to try it, I realize I've used Chromium (reserved for google) and never seen that artifact there. I'll check into Electron.

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This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

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This issue has been closed due to inactivity.

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