1... Output of xrandr and lspci xrandr Screen 0: minimum 320 x 200, current 3840 x 1080, maximum 16384 x 16384 DisplayPort-0 disconnected (normal left inverted right x axis y axis) HDMI-2 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 477mm x 268mm 1920x1080 60.00*+ 60.00 50.00 59.94 1920x1080i 60.00 50.00 59.94 1680x1050 59.88 1600x900 60.00 1280x1024 75.02 60.02 1280x960 60.00 1280x800 59.91 1152x864 75.00 1280x720 60.00 50.00 59.94 1024x768 75.03 60.00 1024x576 59.97 832x624 74.55 800x600 75.00 60.32 720x576 50.00 720x576i 50.00 720x480 60.00 59.94 720x480i 60.00 59.94 640x480 75.00 60.00 59.94 720x400 70.08 DVI-0 disconnected (normal left inverted right x axis y axis) DVI-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 477mm x 268mm 1920x1080 60.00*+ 1280x1024 75.02 60.02 1152x864 75.00 1024x768 75.03 60.00 800x600 75.00 60.32 640x480 75.00 59.94 720x400 70.08 VGA-1-1 disconnected (normal left inverted right x axis y axis) HDMI-1-1 disconnected (normal left inverted right x axis y axis) HDMI-1-2 disconnected (normal left inverted right x axis y axis)
00:00.0 Host bridge: Intel Corporation 4th Gen Core Processor DRAM Controller (rev 06) Subsystem: Gigabyte Technology Co., Ltd 4th Gen Core Processor DRAM Controller Kernel driver in use: hsw_uncore 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller (rev 06) Kernel driver in use: pcieport Kernel modules: shpchp 00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06) Subsystem: Gigabyte Technology Co., Ltd Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller Kernel driver in use: i915 Kernel modules: i915 00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller (rev 06) Subsystem: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller Kernel driver in use: snd_hda_intel Kernel modules: snd_hda_intel 00:14.0 USB controller: I00:00.0 Host bridge: Intel Corporation 4th Gen Core Processor DRAM Controller (rev 06) Subsystem: Gigabyte Technology Co., Ltd 4th Gen Core Processor DRAM Controller Kernel driver in use: hsw_uncore 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller (rev 06) Kernel driver in use: pcieport Kernel modules: shpchp 00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06) Subsystem: Gigabyte Technology Co., Ltd Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller Kernel driver in use: i915 Kernel modules: i915 00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller (rev 06) Subsystem: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller Kernel driver in use: snd_hda_intel Kernel modules: snd_hda_intel 00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05) Subsystem: Gigabyte Technology Co., Ltd 8 Series/C220 Series Chipset Family USB xHCI Kernel driver in use: xhci_hcd 00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 (rev 04) Subsystem: Gigabyte Technology Co., Ltd 8 Series/C220 Series Chipset Family MEI Controller Kernel driver in use: mei_me Kernel modules: mei_me 00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I217-V (rev 05) Subsystem: Gigabyte Technology Co., Ltd Ethernet Connection I217-V Kernel driver in use: e1000e Kernel modules: e1000e 00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 05) Subsystem: Gigabyte Technology Co., Ltd 8 Series/C220 Series Chipset Family USB EHCI Kernel driver in use: ehci-pci 00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 05) Subsystem: Gigabyte Technology Co., Ltd 8 Series/C220 Series Chipset High Definition Audio Controller Kernel driver in use: snd_hda_intel Kernel modules: snd_hda_intel 00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 (rev d5) Kernel driver in use: pcieport Kernel modules: shpchp 00:1c.3 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #4 (rev d5) Kernel driver in use: pcieport Kernel modules: shpchp 00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 05) Subsystem: Gigabyte Technology Co., Ltd 8 Series/C220 Series Chipset Family USB EHCI Kernel driver in use: ehci-pci 00:1f.0 ISA bridge: Intel Corporation B85 Express LPC Controller (rev 05) Subsystem: Gigabyte Technology Co., Ltd B85 Express LPC Controller Kernel driver in use: lpc_ich Kernel modules: lpc_ich 00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] (rev 05) Subsystem: Gigabyte Technology Co., Ltd 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] Kernel driver in use: ahci Kernel modules: ahci 00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller (rev 05) Subsystem: Gigabyte Technology Co., Ltd 8 Series/C220 Series Chipset Family SMBus Controller Kernel modules: i2c_i801 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Curacao PRO [Radeon R7 370 / R9 270/370 OEM] (rev 81) Subsystem: Tul Corporation / PowerColor Curacao PRO [Radeon R7 370 / R9 270/370 OEM] Kernel driver in use: radeon Kernel modules: radeon, amdgpu 01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Cape Verde/Pitcairn HDMI Audio [Radeon HD 7700/7800 Series] Subsystem: Tul Corporation / PowerColor Cape Verde/Pitcairn HDMI Audio [Radeon HD 7700/7800 Series] Kernel driver in use: snd_hda_intel Kernel modules: snd_hda_intel 03:00.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 41) ntel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05) Subsystem: Gigabyte Technology Co., Ltd 8 Series/C220 Series Chipset Family USB xHCI Kernel driver in use: xhci_hcd 00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 (rev 04) Subsystem: Gigabyte Technology Co., Ltd 8 Series/C220 Series Chipset Family MEI Controller Kernel driver in use: mei_me Kernel modules: mei_me 00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I217-V (rev 05) Subsystem: Gigabyte Technology Co., Ltd Ethernet Connection I217-V Kernel driver in use: e1000e Kernel modules: e1000e 00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 05) Subsystem: Gigabyte Technology Co., Ltd 8 Series/C220 Series Chipset Family USB EHCI Kernel driver in use: ehci-pci 00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 05) Subsystem: Gigabyte Technology Co., Ltd 8 Series/C220 Series Chipset High Definition Audio Controller Kernel driver in use: snd_hda_intel Kernel modules: snd_hda_intel 00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 (rev d5) Kernel driver in use: pcieport Kernel modules: shpchp 00:1c.3 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #4 (rev d5) Kernel driver in use: pcieport Kernel modules: shpchp 00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 05) Subsystem: Gigabyte Technology Co., Ltd 8 Series/C220 Series Chipset Family USB EHCI Kernel driver in use: ehci-pci 00:1f.0 ISA bridge: Intel Corporation B85 Express LPC Controller (rev 05) Subsystem: Gigabyte Technology Co., Ltd B85 Express LPC Controller Kernel driver in use: lpc_ich Kernel modules: lpc_ich 00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] (rev 05) Subsystem: Gigabyte Technology Co., Ltd 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] Kernel driver in use: ahci Kernel modules: ahci 00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller (rev 05) Subsystem: Gigabyte Technology Co., Ltd 8 Series/C220 Series Chipset Family SMBus Controller Kernel modules: i2c_i801 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Curacao PRO [Radeon R7 370 / R9 270/370 OEM] (rev 81) Subsystem: Tul Corporation / PowerColor Curacao PRO [Radeon R7 370 / R9 270/370 OEM] Kernel driver in use: radeon Kernel modules: radeon, amdgpu 01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Cape Verde/Pitcairn HDMI Audio [Radeon HD 7700/7800 Series] Subsystem: Tul Corporation / PowerColor Cape Verde/Pitcairn HDMI Audio [Radeon HD 7700/7800 Series] Kernel driver in use: snd_hda_intel Kernel modules: snd_hda_intel 03:00.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 41) 2,Attached file for glxinfo On Wed, Aug 15, 2018 at 10:41 PM Daniel van Vugt < daniel.van.v...@canonical.com> wrote: > Great, thanks. Can you please run these two commands on the machine and > send us their outputs? > > xrandr > > lspci -k > > > ** Tags added: bionic cosmic > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1725836 > > Title: > No more than 2 displays work simultaneously > > Status in Mutter: > Incomplete > Status in gnome-shell package in Ubuntu: > Incomplete > Status in mutter package in Ubuntu: > Incomplete > Status in xorg-server package in Ubuntu: > Incomplete > > Bug description: > I have three displays that worked fine in 17.04. > Now ith 17.10 I can only use two of them. Either 1 & 2, 1& 3 or 2 2 & 3. > All three seem to be properly specified in monitors.xml. > The display setup scree detects all three. > UBUNTU 17.10 > AMD PitcairnLSB Version: > core-9.20160110ubuntu5-amd64:core-9.20160110ubuntu5-noarch:security-9.20160110ubuntu5-amd64:security-9.20160110ubuntu5-noarch > --- > ApportVersion: 2.20.7-0ubuntu3 > Architecture: amd64 > CurrentDesktop: ubuntu:GNOME > DisplayManager: gdm3 > DistroRelease: Ubuntu 17.10 > InstallationDate: Installed on 2017-02-23 (242 days ago) > InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 > (20161012.2) > Package: mutter > PackageArchitecture: amd64 > ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 > Tags: artful > Uname: Linux 4.13.0-16-generic x86_64 > UpgradeStatus: Upgraded to artful on 2017-10-20 (3 days ago) > UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo > _MarkForUpload: True > > To manage notifications about this bug go to: > https://bugs.launchpad.net/mutter/+bug/1725836/+subscriptions > ** Attachment added: "glxinfo.txt" https://bugs.launchpad.net/bugs/1725836/+attachment/5176256/+files/glxinfo.txt -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1725836 Title: No more than 2 displays work simultaneously To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/1725836/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs