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I recently installed KDE in Arch, and at first I was able to connect to my monitor just fine. Now when I try to connect the monitor doesn't connect, and when I open KDE Display settings, it shows the monitor connecting for a few seconds, then disconnecting for a few seconds, over and over. I know that it isn't a problem with the computer or monitor because it works fine in Ubuntu MATE on the same laptop. How do I go about fixing this?
Thanks in advance.
Last edited by prismavoid08 (2020-04-21 22:33:46)
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at first I was able to connect to my monitor just fine. Now when I try to connect the monitor doesn't connect
So what changed between then and now?
How do I go about fixing this?
First, provide some actual information.
Please post the output of "xrandr -q" and "sudo journalctl -b" after failing to connect the output.
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$ xrandr -q
Screen 0: minimum 320 x 200, current 3840 x 2160, maximum 16384 x 16384
eDP-1 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 294mm x 165mm
3840x2160 60.00*+ 59.98 59.97 48.00
3200x1800 59.96 59.94
2880x1620 59.96 59.97
2560x1600 59.99 59.97
2560x1440 59.99 59.99 59.96 59.95
2048x1536 60.00
1920x1440 60.00
1856x1392 60.01
1792x1344 60.01
2048x1152 59.99 59.98 59.90 59.91
1920x1200 59.88 59.95
1920x1080 60.01 59.97 59.96 59.93
1600x1200 60.00
1680x1050 59.95 59.88
1400x1050 59.98
1600x900 59.99 59.94 59.95 59.82
1280x1024 60.02
1400x900 59.96 59.88
1280x960 60.00
1440x810 60.00 59.97
1368x768 59.88 59.85
1280x800 59.99 59.97 59.81 59.91
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
700x525 59.98
800x450 59.95 59.82
640x512 60.02
700x450 59.96 59.88
640x480 60.00 59.94
720x405 59.51 58.99
684x384 59.88 59.85
640x400 59.88 59.98
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 connected (normal left inverted right x axis y axis)
1920x1080 60.00 + 50.00 59.94
1680x1050 59.88
1680x945 60.02
1400x1050 59.95
1600x900 60.00
1280x1024 60.02
1440x900 59.90
1280x960 60.00
1366x768 59.79
1360x768 60.02
1280x800 59.91
1152x864 59.97
1280x768 59.99
1280x720 60.00 59.94
1024x768 60.00
1024x576 59.97
800x600 60.32 56.25
720x576 50.00
848x480 60.00
720x480 60.00 59.94
640x480 60.00 59.94
DP-2 disconnected (normal left inverted right x axis y axis)sudo journalctl -b
-- Logs begin at Fri 2020-03-27 09:10:25 EDT, end at Wed 2020-04-22 09:09:54 EDT. --
Apr 22 09:06:22 XPS13-Arch kernel: Linux version 5.6.2-arch1-2 (linux@archlinux) (gcc version 9.3.0 (Arch Linux 9>
Apr 22 09:06:22 XPS13-Arch kernel: Command line: BOOT_IMAGE=/boot/vmlinuz-linux root=UUID=1bc9d29c-0ee0-49d5-8468>
Apr 22 09:06:22 XPS13-Arch kernel: KERNEL supported cpus:
Apr 22 09:06:22 XPS13-Arch kernel: Intel GenuineIntel
Apr 22 09:06:22 XPS13-Arch kernel: AMD AuthenticAMD
Apr 22 09:06:22 XPS13-Arch kernel: Hygon HygonGenuine
Apr 22 09:06:22 XPS13-Arch kernel: Centaur CentaurHauls
Apr 22 09:06:22 XPS13-Arch kernel: zhaoxin Shanghai
Apr 22 09:06:22 XPS13-Arch kernel: x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
Apr 22 09:06:22 XPS13-Arch kernel: x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
Apr 22 09:06:22 XPS13-Arch kernel: x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
Apr 22 09:06:22 XPS13-Arch kernel: x86/fpu: Supporting XSAVE feature 0x008: 'MPX bounds registers'
Apr 22 09:06:22 XPS13-Arch kernel: x86/fpu: Supporting XSAVE feature 0x010: 'MPX CSR'
Apr 22 09:06:22 XPS13-Arch kernel: x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256
Apr 22 09:06:22 XPS13-Arch kernel: x86/fpu: xstate_offset[3]: 832, xstate_sizes[3]: 64
Apr 22 09:06:22 XPS13-Arch kernel: x86/fpu: xstate_offset[4]: 896, xstate_sizes[4]: 64
Apr 22 09:06:22 XPS13-Arch kernel: x86/fpu: Enabled xstate features 0x1f, context size is 960 bytes, using 'compa>
Apr 22 09:06:22 XPS13-Arch kernel: BIOS-provided physical RAM map:
Apr 22 09:06:22 XPS13-Arch kernel: BIOS-e820: [mem 0x0000000000000000-0x000000000009dfff] usable
Apr 22 09:06:22 XPS13-Arch kernel: BIOS-e820: [mem 0x000000000009e000-0x00000000000fffff] reserved
Apr 22 09:06:22 XPS13-Arch kernel: BIOS-e820: [mem 0x0000000000100000-0x000000003fffffff] usable
Apr 22 09:06:22 XPS13-Arch kernel: BIOS-e820: [mem 0x0000000040000000-0x00000000403fffff] reserved
Apr 22 09:06:22 XPS13-Arch kernel: BIOS-e820: [mem 0x0000000040400000-0x0000000047551fff] usable
Apr 22 09:06:22 XPS13-Arch kernel: BIOS-e820: [mem 0x0000000047552000-0x0000000047552fff] ACPI NVS
Apr 22 09:06:22 XPS13-Arch kernel: BIOS-e820: [mem 0x0000000047553000-0x0000000047553fff] reserved
Apr 22 09:06:22 XPS13-Arch kernel: BIOS-e820: [mem 0x0000000047554000-0x000000005e5fafff] usable
Apr 22 09:06:22 XPS13-Arch kernel: BIOS-e820: [mem 0x000000005e5fb000-0x000000005f989fff] reserved
Apr 22 09:06:22 XPS13-Arch kernel: BIOS-e820: [mem 0x000000005f98a000-0x000000005ff89fff] ACPI NVSOffline
That's not the journal, that's the journals head.
You can use the tip from https://wiki.archlinux.org/index.php/Pastebin
…
So you've eDP-1 (4k) and DP-1 (Full HD), latter isn't active.
What happens for
xrandr --output DP-1 --auto --right-of eDP-1or just
xrandr --output DP-1 --autoAlso see https://wiki.archlinux.org/index.php/HiDPI for issues around mixed HiDPI outputs, mitigation strategies etc.
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