[Bug 107253] Multi-screen xrandr setup results in distorted/choppy output

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107253

--- Comment #5 from casualfred <dongeryduo at gmail.com> ---
Created attachment 140680
  --> https://bugs.freedesktop.org/attachment.cgi?id=140680&action=edit
Xorg.0.log with modesetting driver

Thanks for your reply!

I reinstalled the 11 July 2018, f533b1f6... commit of xf86-video-ati, and, just
FYI, I had the 1 June 2018, 3d395062... commit of xf86-video-intel installed.

To test my setup with the modesetting driver for my integrated Intel graphics,
I simply uninstalled the xf86-video-intel driver package and rebooted. I had to
change my xrandr commands slightly, as my cards had different provider ID's,
but it looks like I'm still running into exactly the same result as I described
above. X doesn't crash, but my primary screen becomes boxy and scrambled.

The "xrandr --listproviders" command reported:

Providers: number : 2
Provider 0: id: 0x95 cap: 0xf, Source Output, Sink Output, Source Offload, Sink
Offload crtcs: 6 outputs: 3 associated providers: 1 name:BONAIRE @
pci:0000:01:00.0
Provider 1: id: 0x46 cap: 0xf, Source Output, Sink Output, Source Offload, Sink
Offload crtcs: 3 outputs: 4 associated providers: 1 name:modesetting

I have also attached the Xorg.0.log from this session.

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