<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Enabling PP_OVERDRIVE_MASK with dual monitors causes artifacting" href="https://bugs.freedesktop.org/show_bug.cgi?id=108941#c1">Comment # 1</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Enabling PP_OVERDRIVE_MASK with dual monitors causes artifacting" href="https://bugs.freedesktop.org/show_bug.cgi?id=108941">bug 108941</a> from <a class="email" href="mailto:rigo.reddig@gmail.com" title="Rigo Reddig <rigo.reddig@gmail.com>"> Rigo Reddig</a> <pre> I've just recently chatted to boukehaarsma23 about it, as it also affects me. I have uploaded a video of what this looks like which you can see here: <a href="https://www.youtube.com/watch?v=roHXWtHRhyQ">https://www.youtube.com/watch?v=roHXWtHRhyQ</a> Interestingly the artifact lines appear to be aligned across the screens, vsync? The main reason though I first came across this is by trying to manually downclock my GPU. With 2x 60Hz HDMI 1080p monitors attached the GPU is constantly in a higher power state (both mclkc and sclk) and wastes a considerable amount of power at idle. This is not a problem with 1 monitor attached. Also of note is that even with 2 monitors attached this does not occur on Windows where the GPU idles at 300MCLK/300SCLK and is significantly cooler. For comparison about power, according to my UPS my system idles at 112-128W when the GPU's are downclocking appropriately(1 monitor). This measurement matches with Windows where the GPU is downclocking to state 0 appropriately. When it's not downclocking appropriately (2x monitors) it idles at anywhere between 160-176Watt. Setup: 2x RX580 Gigabyte 8G (Monitors both on GPU0) Linux 4.19.4 (Arch Main) Latest stable KDE Plasma on X</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>