Hi Felix and Greg, Thank you so much! Here is more information.
I'm try to got 3 monitors in my debian bullseye. In this days/ weeks, months, I have googled a lot to find any rule to tell me how I could to put my third monitor to work. It is plugged in a DisplayLink FY USB-DVI in this manner: notebook usb3.0 port -> cable -> DisplayLink FY USB-DVI -> DVItoVGA Adapter -> VGA cable -> Monitor AOC 511vw I try this with the this instructions https://is.gd/Ijp1k1 and with the DisplyLink install script (https://git.io/JvADQ). Not success. So, I read in some place that can be a possible conflict with xorg module. To figure out the solution, I'm try to uninstall all unnecessary module. I'm in this point/step now. lsusb output: marcelo@marcelo:~$ lsusb Bus 001 Device 006: ID 0bda:5754 Realtek Semiconductor Corp. Bus 001 Device 005: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller Bus 001 Device 004: ID 04f3:034f Elan Microelectronics Corp. Bus 001 Device 003: ID 0cf3:e005 Qualcomm Atheros Communications Bus 001 Device 002: ID 8087:8000 Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 002: ID 0bda:0409 Realtek Semiconductor Corp. 4-Port USB 3.0 Hub Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 002 Device 009: ID 17e9:019e DisplayLink FY USB-DVI Bus 002 Device 006: ID 1a2c:0e24 China Resource Semico Co., Ltd Bus 002 Device 004: ID 1c4f:0034 SiGma Micro Bus 002 Device 002: ID 0bda:5409 Realtek Semiconductor Corp. 4-Port USB 2.0 Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub marcelo@marcelo:~$ lspci -nn output command: marcelo@marcelo:~$ lspci -nn 00:00.0 Host bridge [0600]: Intel Corporation Haswell-ULT DRAM Controller [8086:0a04] (rev 0b) 00:02.0 VGA compatible controller [0300]: Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) 00:03.0 Audio device [0403]: Intel Corporation Haswell-ULT HD Audio Controller [8086:0a0c] (rev 0b) 00:14.0 USB controller [0c03]: Intel Corporation 8 Series USB xHCI HC [8086:9c31] (rev 04) 00:16.0 Communication controller [0780]: Intel Corporation 8 Series HECI #0 [8086:9c3a] (rev 04) 00:1b.0 Audio device [0403]: Intel Corporation 8 Series HD Audio Controller [8086:9c20] (rev 04) 00:1c.0 PCI bridge [0604]: Intel Corporation 8 Series PCI Express Root Port 3 [8086:9c14] (rev e4) 00:1c.3 PCI bridge [0604]: Intel Corporation 8 Series PCI Express Root Port 4 [8086:9c16] (rev e4) 00:1c.4 PCI bridge [0604]: Intel Corporation 8 Series PCI Express Root Port 5 [8086:9c18] (rev e4) 00:1d.0 USB controller [0c03]: Intel Corporation 8 Series USB EHCI #1 [8086:9c26] (rev 04) 00:1f.0 ISA bridge [0601]: Intel Corporation 8 Series LPC Controller [8086:9c43] (rev 04) 00:1f.2 SATA controller [0106]: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] [8086:9c03] (rev 04) 00:1f.3 SMBus [0c05]: Intel Corporation 8 Series SMBus Controller [8086:9c22] (rev 04) 01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller [10ec:8136] (rev 07) 02:00.0 Network controller [0280]: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter [168c:0036] (rev 01) 03:00.0 Display controller [0380]: Advanced Micro Devices, Inc. [AMD/ATI] Topaz XT [Radeon R7 M260/M265 / M340/M360 / M440/M445 / 530/535 / 620/625 Mobile] [10... marcelo@marcelo:~$ inxi -GSxxza command output marcelo@marcelo:~$ inxi -GSxxza System: Kernel: 5.4.0-4-amd64 x86_64 bits: 64 compiler: gcc v: 9.2.1 parameters: BOOT_IMAGE=/boot/vmlinuz-5.4.0-4-amd64 root=UUID=fa1db682-d14a-4ab4-bfed-9562392ca134 ro quiet Desktop: Gnome 3.34.4 wm: gnome-shell dm: GDM3 3.34.1 Distro: Debian GNU/Linux bullseye/sid Graphics: Device-1: Intel Haswell-ULT Integrated Graphics vendor: Dell driver: i915 v: kernel bus ID: 00:02.0 chip ID: 8086:0a16 Display: x11 server: X.Org 1.20.7 driver: i915 compositor: gnome-shell resolution: 1920x1080~60Hz, 1920x1080~60Hz OpenGL: renderer: Mesa DRI Intel Haswell Mobile v: 4.5 Mesa 19.3.3 compat-v: 3.0 direct render: Yes marcelo@marcelo:~$ marcelo@marcelo:~$ xrandr --listproviders Providers: number : 3 Provider 0: id: 0x44 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 3 outputs: 2 associated providers: 0 name:modesetting Provider 1: id: 0x10a cap: 0x2, Sink Output crtcs: 1 outputs: 1 associated providers: 0 name:modesetting Provider 2: id: 0xe8 cap: 0xd, Source Output, Source Offload, Sink Offload crtcs: 0 outputs: 0 associated providers: 0 name:AMD Radeon R7 M260 @ pci:0000:03:00.0 marcelo@marcelo:~$ DRI_PRIME=0 glxinfo | grep "OpenGL renderer" OpenGL renderer string: Mesa DRI Intel(R) Haswell Mobile marcelo@marcelo:~$ DRI_PRIME=1 glxinfo | grep "OpenGL renderer" OpenGL renderer string: AMD Radeon R7 M260 (ICELAND, DRM 3.35.0, 5.4.0-4-amd64, LLVM 9.0.1) marcelo@marcelo:~$ DRI_PRIME=2 glxinfo | grep "OpenGL renderer" OpenGL renderer string: Mesa DRI Intel(R) Haswell Mobile I'm using X, not Wayland. root@marcelo:~# dmesg | grep -i firmware [ 0.270212] Spectre V2 : Enabling Restricted Speculation for firmware calls [ 0.503574] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored [ 3.645280] amdgpu 0000:03:00.0: firmware: direct-loading firmware amdgpu/topaz_mc.bin [ 3.646340] amdgpu 0000:03:00.0: firmware: direct-loading firmware amdgpu/topaz_pfp.bin [ 3.646352] amdgpu 0000:03:00.0: firmware: direct-loading firmware amdgpu/topaz_me.bin [ 3.646362] amdgpu 0000:03:00.0: firmware: direct-loading firmware amdgpu/topaz_ce.bin [ 3.646370] amdgpu 0000:03:00.0: firmware: direct-loading firmware amdgpu/topaz_rlc.bin [ 3.646414] amdgpu 0000:03:00.0: firmware: direct-loading firmware amdgpu/topaz_mec.bin [ 3.647189] amdgpu 0000:03:00.0: firmware: direct-loading firmware amdgpu/topaz_sdma.bin [ 3.647201] amdgpu 0000:03:00.0: firmware: direct-loading firmware amdgpu/topaz_sdma1.bin [ 3.647421] amdgpu 0000:03:00.0: firmware: direct-loading firmware amdgpu/topaz_smc.bin [ 10.271306] usb 1-1.5: firmware: failed to load ar3k/AthrBT_0x31010000.dfu (-2) [ 10.271354] firmware_class: See https://wiki.debian.org/Firmware for information about missing firmware [ 10.271402] usb 1-1.5: Direct firmware load for ar3k/AthrBT_0x31010000.dfu failed with error -2 [ 16.027012] r8169 0000:01:00.0: firmware: direct-loading firmware rtl_nic/rtl8106e-1.fw [ 6664.075093] battery: [Firmware Bug]: battery: (dis)charge rate invalid. root@marcelo:~# marcelo@marcelo:~$ sudo lshw -class video *-display description: VGA compatible controller product: Haswell-ULT Integrated Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 0b width: 64 bits clock: 33MHz capabilities: msi pm vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:46 memory:b0400000-b07fffff memory:c0000000-cfffffff ioport:5000(size=64) memory:c0000-dffff *-display description: Display controller product: Topaz XT [Radeon R7 M260/M265 / M340/M360 / M440/M445 / 530/535 / 620/625 Mobile] vendor: Advanced Micro Devices, Inc. [AMD/ATI] physical id: 0 bus info: pci@0000:03:00.0 version: 00 width: 64 bits clock: 33MHz capabilities: pm pciexpress msi bus_master cap_list rom configuration: driver=amdgpu latency=0 resources: irq:53 memory:a0000000-afffffff memory:b0000000-b01fffff ioport:3000(size=256) memory:b0900000-b093ffff memory:b0940000-b095ffff marcelo@marcelo:~$ marcelo@marcelo:~$ xrandr --current Screen 0: minimum 320 x 200, current 3840 x 1080, maximum 16384 x 16384 eDP-1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 193mm 1920x1080 60.05*+ 60.01 59.97 59.96 59.93 48.04 1680x1050 59.95 59.88 1600x1024 60.17 1400x1050 59.98 1600x900 59.99 59.94 59.95 59.82 1280x1024 60.02 1440x900 59.89 1400x900 59.96 59.88 1280x960 60.00 1440x810 60.00 59.97 1368x768 59.88 59.85 1360x768 59.80 59.96 1280x800 59.99 59.97 59.81 59.91 1152x864 60.00 1280x720 60.00 59.99 59.86 59.74 1024x768 60.04 60.00 960x720 60.00 928x696 60.05 896x672 60.01 1024x576 59.95 59.96 59.90 59.82 960x600 59.93 60.00 960x540 59.96 59.99 59.63 59.82 800x600 60.00 60.32 56.25 840x525 60.01 59.88 864x486 59.92 59.57 800x512 60.17 700x525 59.98 800x450 59.95 59.82 640x512 60.02 720x450 59.89 700x450 59.96 59.88 640x480 60.00 59.94 720x405 59.51 58.99 684x384 59.88 59.85 680x384 59.80 59.96 640x400 59.88 59.98 576x432 60.06 640x360 59.86 59.83 59.84 59.32 512x384 60.00 512x288 60.00 59.92 480x270 59.63 59.82 400x300 60.32 56.34 432x243 59.92 59.57 320x240 60.05 360x202 59.51 59.13 320x180 59.84 59.32 HDMI-1 connected primary 1920x1080+1920+0 (normal left inverted right x axis y axis) 527mm x 296mm 1920x1080 60.00*+ 50.00 59.94 1920x1080i 60.00 50.00 59.94 1600x900 60.00 1280x1024 75.02 60.02 1152x864 75.00 1280x720 60.00 50.00 59.94 1024x768 75.03 60.00 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 marcelo@marcelo:~$ I will continue to google for a solution, if there are anyone. Thank you very much! -- Marcelo
