Description of problem: I observed interesting graphic glitches that show identically in two rather different remote-viewing protocols on a PC with a M2000 card. The glitches are visible on this YouTube video: https://www.youtube.com/watch?v=6uVZ4qcvswc. On the left, you see a spicy client running on the host, displayed over X11. The server is a x11spice server. On the right, you see the native VNC client for macOS, Apple Screen Sharing, the server being vino-server on the PC. What is interesting is that both show the exact same kind of glitches, which do not show up on the physical display. The glitches seem to show pieces of "out of place" textures, i.e. parts of other windows that should be hidden behind. Since the only part I can imagine that is common between the two protocols is how they access the host framebuffer, I file this against xorg-x11-drv-fbdev. This may be more of a NVIDIA driver issue though. Version-Release number of selected component (if applicable): xorg-x11-drv-fbdev.x86_64 0.4.3-25.fc25 @anaconda vino.x86_64 3.22.0-1.fc25 @anaconda x11spice commit 7faa5d38601a1890f5460dddd12bc651fda0c077 from https://gitlab.com/spice/x11spice spicy: commit 16ea4b2f712b7bb30bd2bb0d0dd6e59ed08ff37c How reproducible: Always. Glitches happen several times per minute. Steps to Reproduce: For VNC: 1. Enable screen sharing in Gnome 2. Connect with a VNC client (tried with Apple Screen Sharing) 3. Load several windows (in my experience, having Firefox on a YouType video makes the glitches very frequent) For Spice: 1. Run x11spice (I used x11spice --password-file=- localhost:5909) 2. Connect to spice (I used spicy -h localhost -p 5909) Actual results: Glitches in the middle of windows that are otherwise not moving. Expected results: Windows should display their content, not the content of some other window. Additional info: In order to use vino-server and x11spice, you need to be running a X11 session, not a wayland session.
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