The attached Xorg log files seem to show that it knows about both GPUs and it claims to be using both...
1. Are you able to work around the problem by logging into "Ubuntu on Wayland" instead? 2. Does the same problem also occur in Ubuntu 20.04 (to be released soon)? http://cdimage.ubuntu.com/daily-live/current/ or in 19.10 (https://ubuntu.com/download/desktop)? ** Summary changed: - no dual head video with 2 on board sources: ast2500 and i915 + modeset: Loss of VGA signal (ast2500) on login ** Package changed: xorg (Ubuntu) => xorg-server (Ubuntu) ** Changed in: xorg-server (Ubuntu) Status: New => Incomplete ** Also affects: mutter (Ubuntu) Importance: Undecided Status: New ** Changed in: mutter (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1871394 Title: modeset: Loss of VGA signal (ast2500) on login Status in mutter package in Ubuntu: Incomplete Status in xorg-server package in Ubuntu: Incomplete Bug description: I am creating a new computer platforms. It provides two video sources: an Intel i915 DisplayPort and an AST2500 VGA. The i915 also provides HDMI, but it is disconnected/disabled. EXPECTED BEHAVIOR: Video is presented through the AST2500 to VGA and the i915 to DisplayPort, mergine the displays to a unified layout when a layout is provided to xorg. ACTUAL BEHAVIOR: Both monitors present a purple background at login, but the VGA monitor is quickly disabled at login. When I had a problem with these video sources under Windows the Intel team provided me a "Switchable Graphics" BIOS module. It resolved the issue there. My BIOS settings define "Switchable Graphics" as the Primary Display. When I set the BIOS to use the ast2500 as the only display source the system works as intended. I mention this to confirm the ast2500 and kernel can display video even if the ast2500 won't display video alongside the i915. Description: Ubuntu 18.04.4 LTS Release: 18.04 xorg: Installed: 1:7.7+19ubuntu7.1 Candidate: 1:7.7+19ubuntu7.1 Version table: *** 1:7.7+19ubuntu7.1 500 500 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages 100 /var/lib/dpkg/status 1:7.7+19ubuntu7 500 500 http://us.archive.ubuntu.com/ubuntu bionic/main amd64 Packages test@test:~$ modinfo ast | grep -version filename: /lib/modules/5.3.0-46-generic/kernel/drivers/gpu/drm/ast/ast.ko license: GPL and additional rights description: AST author: Dave Airlie firmware: ast_dp501_fw.bin alias: pci:v00001A03d00002010sv*sd*bc03sc*i* alias: pci:v00001A03d00002000sv*sd*bc03sc*i* depends: drm,drm_kms_helper,drm_vram_helper,i2c-algo-bit retpoline: Y intree: Y name: ast vermagic: 5.3.0-46-generic SMP mod_unload signat: PKCS#7 signer: sig_key: sig_hashalgo: md4 parm: modeset:Disable/Enable modesetting (int) test@test:~$ xrandr --listproviders Providers: number : 2 Provider 0: id: 0x6e cap: 0x9, Source Output, Sink Offload crtcs: 3 outputs: 2 associated providers: 0 name:modesetting Provider 1: id: 0x41 cap: 0x0 crtcs: 1 outputs: 1 associated providers: 0 name:modesetting Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384 DP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 496mm x 292mm 1920x1080 60.00*+ 1680x1050 59.95 1600x900 60.00 1280x1024 60.02 1440x900 59.89 1280x800 59.81 1280x720 60.00 1024x768 60.00 800x600 60.32 640x480 59.94 720x400 70.08 HDMI-1 disconnected (normal left inverted right x axis y axis) test@test:~$ sudo lshw -C video [sudo] password for test: *-display description: VGA compatible controller product: Intel Corporation vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 02 width: 64 bits clock: 33MHz capabilities: pciexpress msi pm vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:152 memory:90000000-90ffffff memory:80000000-8fffffff ioport:6000(size=64) memory:c0000-dffff *-display description: VGA compatible controller product: ASPEED Graphics Family vendor: ASPEED Technology, Inc. physical id: 0 bus info: pci@0000:04:00.0 version: 41 width: 32 bits clock: 33MHz capabilities: pm msi vga_controller cap_list configuration: driver=ast latency=0 resources: irq:18 memory:91000000-91ffffff memory:92000000-9201ffff ioport:4000(size=128) ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: xorg 1:7.7+19ubuntu7.1 ProcVersionSignature: Ubuntu 5.3.0-46.38~18.04.1-generic 5.3.18 Uname: Linux 5.3.0-46-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.14 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Tue Apr 7 09:02:34 2020 DistUpgraded: Fresh install DistroCodename: bionic DistroVariant: ubuntu ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Intel Corporation Device [8086:3e9a] (rev 02) (prog-if 00 [VGA controller]) Subsystem: Intel Corporation Device [8086:2212] ASPEED Technology, Inc. ASPEED Graphics Family [1a03:2000] (rev 41) (prog-if 00 [VGA controller]) Subsystem: ASPEED Technology, Inc. ASPEED Graphics Family [1a03:2000] InstallationDate: Installed on 2020-04-06 (0 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) MachineType: Trenton Systems Inc. MXT8287 0000000000 ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-46-generic root=UUID=a9905566-7697-44d9-b626-03d5dd8fa6be ro quiet splash vt.handoff=1 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/11/2019 dmi.bios.vendor: INSYDE Corp. dmi.bios.version: 05.23.04.0041 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: MXT8287 dmi.board.vendor: Trenton Systems Inc. dmi.board.version: Type2 - Board Version dmi.chassis.asset.tag: Chassis Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: Chassis Manufacturer dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnINSYDECorp.:bvr05.23.04.0041:bd06/11/2019:svnTrentonSystemsInc.:pnMXT82870000000000:pvr00000000000000000000:rvnTrentonSystemsInc.:rnMXT8287:rvrType2-BoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion: dmi.product.family: Type1Family dmi.product.name: MXT8287 0000000000 dmi.product.sku: Type1Sku0 dmi.product.version: 00000000000000000000 dmi.sys.vendor: Trenton Systems Inc. version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.99-1ubuntu1~18.04.2 version.libgl1-mesa-dri: libgl1-mesa-dri 19.2.8-0ubuntu0~18.04.3 version.libgl1-mesa-glx: libgl1-mesa-glx 19.2.8-0ubuntu0~18.04.3 version.xserver-xorg-core: xserver-xorg-core N/A version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1871394/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
