dmesg looks clean so far, intel card (internal display) is fb0 and nvidia-card for hdmi (external 4k monitor hp 27f)
$ dmesg | grep frame [ 0.882504] efifb: framebuffer at 0x80000000, using 8100k, total 8100k [ 0.882611] Console: switching to colour frame buffer device 240x67 [ 0.887919] fb0: EFI VGA frame buffer device [ 1.392526] r8169 0000:03:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko] [ 3.605988] Console: switching to colour frame buffer device 240x67 [ 3.633864] i915 0000:00:02.0: fb0: i915drmfb frame buffer device [ 3.718640] nouveau 0000:01:00.0: fb1: nouveaudrmfb frame buffer device see full dmesg in attachment strange is that i have no X.org.log in /var/log, anything i can try to workaround/test for affected Package? noticed, that on login-screen the background of external monitor is purple and switches to black (default color without background-image) ** Attachment added: "dmesg after starting with 2nd gpu enabled" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1878421/+attachment/5371457/+files/dmesg_multigpu.txt -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1878421 Title: Using two GPUs with one monitor each, one is always black To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/1878421/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
