desktop-packages team mailing list archive

[Sergey Schwartz <1381013@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Gents,

I've got a dual gpu(amd r7 250x) rig with 4 monitors attached to the
first one and 2 monitors attached to the second gpu. All monitors have
the same resolution 1920x1080. I've installed Kubuntu 14.10 beta2 and
have 5 of the monitors working just fine under single Screen0, so I can
drag windows across monitors. All monitors were identified correctly by
xrandr, but for some reason the 6th monitor fails to start.

I can see an error message in /var/log/Xorg.0.log

[   295.327] Cannot do multiple crtcs without X server dirty tracking 2 interface
[   295.327] (EE) RADEON(G0): failed to set mode: No space left on device(II) RADEON(0): EDID vendor "ACI", prod id 10228

Please check attached xrandr.out, lspci.out and Xorg.0.log.

Cheers,
Sergey

** Affects: xserver-xorg-video-ati (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "xrandr"
   https://bugs.launchpad.net/bugs/1381013/+attachment/4235554/+files/xrandr.out

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https://bugs.launchpad.net/bugs/1381013

Title:
  second monitor attached to second gpu fails to start

Status in “xserver-xorg-video-ati” package in Ubuntu:
  New

Bug description:
  Gents,

  I've got a dual gpu(amd r7 250x) rig with 4 monitors attached to the
  first one and 2 monitors attached to the second gpu. All monitors have
  the same resolution 1920x1080. I've installed Kubuntu 14.10 beta2 and
  have 5 of the monitors working just fine under single Screen0, so I
  can drag windows across monitors. All monitors were identified
  correctly by xrandr, but for some reason the 6th monitor fails to
  start.

  I can see an error message in /var/log/Xorg.0.log

  [   295.327] Cannot do multiple crtcs without X server dirty tracking 2 interface
  [   295.327] (EE) RADEON(G0): failed to set mode: No space left on device(II) RADEON(0): EDID vendor "ACI", prod id 10228

  Please check attached xrandr.out, lspci.out and Xorg.0.log.

  Cheers,
  Sergey

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