Malvinka's questions

I have just upgraded from 20.04 to 21.10. It uninstalled a few programs (eg. Tex Maker), a few packages previously installed but what is the most annoying my 3rd monitor stopped working. I have one monitor added through HDMI, and another one via HDMI to QGeeM and that to USB-c. The first one works, and the second one stopped. It worked fine during the upgrade, then I was asked to reboot the system, I agreed and it stopped working at that moment. What should I do?

Edit: ubuntu-drivers devices does not produce any output and I have nothing in additional drivers in software and updates.

I feel like luck of some drivers might be a problem?

I work on Lenovo Ideapad, Ubuntu 18.04. I have one external monitor working fine on HDMI. I'd like to add the second monitor via USB-C → HDMI/VGA/2xUSB dongle but it is not detected. The dongle works fine on Windows and on Ubuntu I checked that with USB device (USB -> USB-C). Result of lsusb -t:

/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 5000M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/12p, 480M
    |__ Port 1: Dev 2, If 1, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 1: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 3: Dev 3, If 2, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 3: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 3: Dev 3, If 1, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 4: Dev 4, If 0, Class=Vendor Specific Class, Driver=, 12M
    |__ Port 7: Dev 5, If 0, Class=Wireless, Driver=btusb, 12M
    |__ Port 7: Dev 5, If 1, Class=Wireless, Driver=btusb, 12M
    |__ Port 8: Dev 6, If 1, Class=Video, Driver=uvcvideo, 480M
    |__ Port 8: Dev 6, If 0, Class=Video, Driver=uvcvideo, 480M

result of xrandr:

Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 309mm x 173mm
   1920x1080     60.05*+  60.01    59.97    59.96    59.93  
   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  
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)

also when I run dmesg -wH and plug/unplug monitor via usb-c it shows exactly nothing.

Could you help?

I've recently bought BT Sony headset. When I switch it to A2DP profile everything works fine. But when I switch to HSP/HFP for videoconference the sound is so terrible that I cannot understand other participants. Is there anything that can be done about that? It's really annoying I cannot use my headset for conferences when I bought them exactly for that.

I've got headset SONY that I cannot set to A2DP profile. I've read many questions about that but nothing seems to work. It connects fine via BT, I'm using blueman and Pulse Audio Volume Controle. But when I try to change profile from off or HSP/HFP to A2DP blueman says Failed to change profile to a2dp_sink. When I do the same in AudioPulse it changes in the UI (option is set) but the setting doesn't change. Running pacmd list-cards in terminal shows:

index: 4
    name: <bluez_card.CC_98_8B_E1_56_B6>
    driver: <module-bluez5-device.c>
    owner module: 28
    properties:
        device.description = "WH-CH700N"
        device.string = "CC:98:8B:E1:56:B6"
        device.api = "bluez"
        device.class = "sound"
        device.bus = "bluetooth"
        device.form_factor = "headset"
        bluez.path = "/org/bluez/hci0/dev_CC_98_8B_E1_56_B6"
        bluez.class = "0x240404"
        bluez.alias = "WH-CH700N"
        device.icon_name = "audio-headset-bluetooth"
        device.intended_roles = "phone"
    profiles:
        headset_head_unit: Headset Head Unit (HSP/HFP) (priority 20, available: unknown)
        a2dp_sink: High Fidelity Playback (A2DP Sink) (priority 10, available: no)
        off: Off (priority 0, available: yes)
    active profile: <off>
    ports:
        headset-output: Headset (priority 0, latency offset 0 usec, available: unknown)
            properties:

        headset-input: Headset (priority 0, latency offset 0 usec, available: unknown)
            properties:

Which seems reasonable: if A2DP is not available then I cannot set it up. But I've managed to set it before but after reconnection, it just stopped working and I cannot do that again.

Could you help me to set that up?

PS. I set in my /etc/bluetooth/main.conf

AutoEnable=true
Disable=Headset
Enable=Source

However I am not sure if that's ok: I need to use my microphone from my headset as well for videoconf, doesn't disable=headset disable it?

I've just installed Ubuntu 18.04 LTS on my Dell Presicion. I plugged in second monitor with no problems but I cannot open Display settings. I got an error:

libGL error: No matching fbConfigs or visuals found libGL error: failed to load driver: swrast libEGL warning: DRI3: Screen seems not DRI3 capable libEGL warning: DRI2: failed to authenticate

What can I do about it?