[Desktop-packages] [Bug 1842009] Re: [Wayland] Screen blanks for a second whenever discrete GPU is powered up

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[Desktop-packages] [Bug 1842009] Re: [Wayland] Screen blanks for a second whenever discrete GPU is powered up

** Changed in: gnome-shell Status: Unknown => New -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1842009 Title: [Wayland] Screen blanks for a second whenever discrete GPU i

[Desktop-packages] [Bug 1842009] Re: [Wayland] Screen blanks for a second whenever discrete GPU is powered up

** Bug watch added: gitlab.gnome.org/GNOME/mutter/issues #755 https://gitlab.gnome.org/GNOME/mutter/issues/755 ** Also affects: gnome-shell via https://gitlab.gnome.org/GNOME/mutter/issues/755 Importance: Unknown Status: Unknown -- You received this bug notification because you a

[Desktop-packages] [Bug 1842009] Re: [Wayland] Screen blanks for a second whenever discrete GPU is powered up

A black frame can also mean a zero FB ID, IIRC... Can you tell if the backlight is going off? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1842009 Title: [Wayland] Screen blank

[Desktop-packages] [Bug 1842009] Re: [Wayland] Screen blanks for a second whenever discrete GPU is powered up

Regardless, please also create an upstream bug: https://gitlab.gnome.org/GNOME/mutter/issues -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1842009 Title: [Wayland] Screen blan

Re: [Desktop-packages] [Bug 1842009] Re: [Wayland] Screen blanks for a second whenever discrete GPU is powered up

It looks like modesetting, or at least a destructive probe of the attached displays. There's nothing KMS related in dmesg corresponding to the blanking, so I don't think it's an invalid FB (I'd expect i915 to spit something in dmesg in that case) -- You received this bug notification because you

[Desktop-packages] [Bug 1842009] Re: [Wayland] Screen blanks for a second whenever discrete GPU is powered up

Can you tell if the "blanking" is either: * The output entering sleep mode; or * A black frame being accidentally flipped. I guess checking if the backlight is still on would answer that. ** Also affects: mutter (Ubuntu) Importance: Undecided Status: New ** Tags added: wayland **

[Desktop-packages] [Bug 1842009] Re: [Wayland] Screen blanks for a second whenever discrete GPU is powered up

or * An invalid framebuffer being accidentally flipped. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1842009 Title: [Wayland] Screen blanks for a second whenever discrete GPU