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djenis

Member

Registered: 2021-04-19

Posts: 82

[SOLVED] Xorg with DisplayLink: external USB-C monitor not detected

Hello,

I'm trying to connect an external monitor to my laptop through USB-C (not Thunderbolt).

The laptop is charging so the hardware should be fine.
Sadly, the monitor is not detected.

- I've installed evdi-git and displaylink
- displaylink.service is active (running)

I have configured /etc/X11/xorg.conf.d/20-evdi.conf:

Section "OutputClass"
	Identifier "DisplayLink"
	MatchDriver "evdi"
	Driver "modesetting"
	Option "AccelMethod" "none"
EndSection

output of `xrandr --listproviders`:

Providers: number : 1
Provider 0: id: 0x54 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 4 outputs: 2 associated providers: 0 name:Unknown AMD Radeon GPU @ pci:0000:04:00.0

`sudo modprobe udl` returns nothing.

output of `sudo dmesg | grep evdi`:

[    1.552804] evdi: [I] Initialising logging on level 5
[    1.552807] evdi: [I] Atomic driver: yes
[    2.241133] Modules linked in: pcc_cpufreq(-) fjes(-) iwlmvm(+) ccm intel_rapl_msr algif_aead intel_rapl_common cbc joydev des_generic amdgpu(+) libdes edac_mce_amd 8021q mousedev ecb hid_multitouch garp asus_wmi gpu_sched wmi_bmof mrp i2c_algo_bit kvm_amd stp drm_ttm_helper algif_skcipher sparse_keymap llc mac80211 snd_hda_codec_realtek libarc4 cmac snd_hda_codec_generic ttm evdi(OE) ledtrig_audio md4 kvm iwlwifi algif_hash snd_hda_codec_hdmi af_alg uinput drm_kms_helper snd_hda_intel irqbypass snd_intel_dspcfg snd_intel_sdw_acpi crct10dif_pclmul cec crc32_pclmul ghash_clmulni_intel snd_hda_codec agpgart r8169 cfg80211 snd_hda_core snd_hwdep aesni_intel snd_pcm syscopyarea realtek crypto_simd vfat snd_timer sysfillrect cryptd sysimgblt snd_rn_pci_acp3x mdio_devres sp5100_tco fat snd pcspkr k10temp rapl fb_sys_fops i2c_piix4 ccp snd_pci_acp3x soundcore rfkill libphy tpm_crb wmi tpm_tis video tpm_tis_core tpm rng_core pinctrl_amd i2c_hid_acpi i2c_hid mac_hid acpi_cpufreq vboxnetflt(OE)
[    2.258269] Modules linked in: pcc_cpufreq(-) fjes(-) iwlmvm ccm intel_rapl_msr algif_aead intel_rapl_common cbc joydev des_generic amdgpu(+) libdes edac_mce_amd 8021q mousedev ecb hid_multitouch garp asus_wmi gpu_sched wmi_bmof mrp i2c_algo_bit kvm_amd stp drm_ttm_helper algif_skcipher sparse_keymap llc mac80211 snd_hda_codec_realtek libarc4 cmac snd_hda_codec_generic ttm evdi(OE) ledtrig_audio md4 kvm iwlwifi algif_hash snd_hda_codec_hdmi af_alg uinput drm_kms_helper snd_hda_intel irqbypass snd_intel_dspcfg snd_intel_sdw_acpi crct10dif_pclmul cec crc32_pclmul ghash_clmulni_intel snd_hda_codec agpgart r8169 cfg80211 snd_hda_core snd_hwdep aesni_intel snd_pcm syscopyarea realtek crypto_simd vfat snd_timer sysfillrect cryptd sysimgblt snd_rn_pci_acp3x mdio_devres sp5100_tco fat snd pcspkr k10temp rapl fb_sys_fops i2c_piix4 ccp snd_pci_acp3x soundcore rfkill libphy tpm_crb wmi tpm_tis video tpm_tis_core tpm rng_core pinctrl_amd i2c_hid_acpi i2c_hid mac_hid acpi_cpufreq vboxnetflt(OE)

I tried unplugging the USB-C cable, restarting the displaylink.service and rebooting with the cable plugged and unplugged.

Is there anything else I could try?

Last edited by djenis (2021-11-15 09:39:20)

djenis

Member

Registered: 2021-04-19

Posts: 82

Re: [SOLVED] Xorg with DisplayLink: external USB-C monitor not detected

Problem not solvable: the laptop (Tuxedo Pulse 14 Gen1) has no DisplayPort over USB-C