Merci xubu1957, voici ce que ça donne :
alexandre@ordidalex:~$ lspci -vnn | grep -A12 '\''[030[02]\]' | grep -Ei "vga|3d|display|kernel"
00:02.0 VGA compatible controller [0300]: Intel Corporation Device [8086:591b] (rev 04) (prog-if 00 [VGA controller])
Kernel driver in use: i915
Kernel modules: i915
alexandre@ordidalex:~$
alexandre@ordidalex:~$ lsmod | sort
acpi_pad 180224 0
acpi_thermal_rel 16384 1 int3400_thermal
aesni_intel 188416 4
aes_x86_64 20480 1 aesni_intel
arc4 16384 2
ath10k_core 360448 1 ath10k_pci
ath10k_pci 49152 0
ath 28672 1 ath10k_core
autofs4 40960 2
binfmt_misc 20480 1
bluetooth 548864 33 btrtl,btintel,btbcm,bnep,btusb,rfcomm
bnep 20480 2
btbcm 16384 1 btusb
btintel 16384 1 btusb
btrtl 16384 1 btusb
btusb 45056 0
ccm 20480 6
cdc_acm 32768 0
cfg80211 634880 3 ath,mac80211,ath10k_core
coretemp 16384 0
crc32_pclmul 16384 0
crct10dif_pclmul 16384 0
cryptd 24576 3 crypto_simd,ghash_clmulni_intel,aesni_intel
crypto_simd 16384 1 aesni_intel
cuse 16384 3
dcdbas 16384 1 dell_smbios
dell_laptop 20480 0
dell_smbios 24576 2 dell_wmi,dell_laptop
dell_wmi 16384 0
dell_wmi_descriptor 16384 2 dell_wmi,dell_smbios
drm 401408 7 drm_kms_helper,i915
drm_kms_helper 172032 5 i915
ecdh_generic 24576 1 bluetooth
fb_sys_fops 16384 1 drm_kms_helper
ghash_clmulni_intel 16384 0
glue_helper 16384 1 aesni_intel
hid 118784 7 i2c_hid,wacom,usbhid,hid_multitouch,hid_sensor_hub,intel_ishtp_hid,hid_generic
hid_generic 16384 0
hid_multitouch 20480 0
hid_sensor_accel_3d 16384 1
hid_sensor_custom 20480 0
hid_sensor_gyro_3d 16384 0
hid_sensor_hub 20480 8 hid_sensor_gyro_3d,hid_sensor_trigger,hid_sensor_iio_common,hid_sensor_incl_3d,hid_sensor_accel_3d,hid_sensor_magn_3d,hid_sensor_rotation,hid_sensor_custom
hid_sensor_iio_common 16384 6 hid_sensor_gyro_3d,hid_sensor_trigger,hid_sensor_incl_3d,hid_sensor_accel_3d,hid_sensor_magn_3d,hid_sensor_rotation
hid_sensor_incl_3d 16384 0
hid_sensor_magn_3d 16384 1
hid_sensor_rotation 16384 0
hid_sensor_trigger 16384 11 hid_sensor_gyro_3d,hid_sensor_incl_3d,hid_sensor_accel_3d,hid_sensor_magn_3d,hid_sensor_rotation
i2c_algo_bit 16384 1 i915
i2c_hid 24576 0
i915 1622016 26
idma64 20480 0
industrialio 69632 10 industrialio_triggered_buffer,hid_sensor_gyro_3d,hid_sensor_trigger,hid_sensor_incl_3d,kfifo_buf,hid_sensor_accel_3d,hid_sensor_magn_3d,hid_sensor_rotation
industrialio_triggered_buffer 16384 5 hid_sensor_gyro_3d,hid_sensor_incl_3d,hid_sensor_accel_3d,hid_sensor_magn_3d,hid_sensor_rotation
input_leds 16384 0
int3400_thermal 16384 0
int3403_thermal 16384 0
int340x_thermal_zone 16384 2 int3403_thermal,processor_thermal_device
intel_cstate 20480 0
intel_hid 16384 0
intel_ish_ipc 20480 0
intel_ishtp 40960 2 intel_ishtp_hid,intel_ish_ipc
intel_ishtp_hid 20480 0
intel_lpss 16384 1 intel_lpss_pci
intel_lpss_pci 20480 0
intel_pch_thermal 16384 0
intel_powerclamp 16384 0
intel_rapl 20480 0
intel_rapl_perf 16384 0
intel_soc_dts_iosf 16384 1 processor_thermal_device
intel_vbtn 16384 0
intel_wmi_thunderbolt 16384 0
ip_tables 28672 0
irqbypass 16384 1 kvm
joydev 24576 0
kfifo_buf 16384 1 industrialio_triggered_buffer
kvm 614400 1 kvm_intel
kvm_intel 217088 0
lp 20480 0
mac80211 786432 1 ath10k_core
mac_hid 16384 0
media 40960 2 videodev,uvcvideo
mei 94208 1 mei_me
mei_me 40960 0
memstick 16384 1 rtsx_pci_ms
Module Size Used by
nls_iso8859_1 16384 1
nvme 36864 0
nvme_core 61440 4 nvme
parport 49152 3 parport_pc,lp,ppdev
parport_pc 32768 0
pcbc 16384 0
ppdev 20480 0
processor_thermal_device 16384 0
rfcomm 77824 4
rtsx_pci 69632 2 rtsx_pci_sdmmc,rtsx_pci_ms
rtsx_pci_ms 20480 0
rtsx_pci_sdmmc 24576 0
sch_fq_codel 20480 5
serio_raw 16384 0
shpchp 36864 0
snd 81920 17 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_pcm,snd_rawmidi
snd_hda_codec 126976 4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
snd_hda_codec_generic 73728 1 snd_hda_codec_realtek
snd_hda_codec_hdmi 49152 1
snd_hda_codec_realtek 106496 1
snd_hda_core 81920 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
snd_hda_intel 45056 3
snd_hwdep 20480 1 snd_hda_codec
snd_pcm 98304 4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core
snd_rawmidi 32768 1 snd_seq_midi
snd_seq 65536 2 snd_seq_midi,snd_seq_midi_event
snd_seq_device 16384 3 snd_seq,snd_seq_midi,snd_rawmidi
snd_seq_midi 16384 0
snd_seq_midi_event 16384 1 snd_seq_midi
snd_timer 32768 2 snd_seq,snd_pcm
soc_button_array 16384 0
soundcore 16384 1 snd
sparse_keymap 16384 3 intel_hid,dell_wmi,intel_vbtn
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
thunderbolt 126976 0
usbhid 49152 1 wacom
uvcvideo 86016 0
video 45056 3 dell_wmi,dell_laptop,i915
videobuf2_core 40960 2 videobuf2_v4l2,uvcvideo
videobuf2_memops 16384 1 videobuf2_vmalloc
videobuf2_v4l2 24576 1 uvcvideo
videobuf2_vmalloc 16384 1 uvcvideo
videodev 184320 3 videobuf2_core,videobuf2_v4l2,uvcvideo
virt_dma 16384 1 idma64
wacom 106496 0
wmi 24576 5 intel_wmi_thunderbolt,dell_wmi,wmi_bmof,dell_smbios,dell_wmi_descriptor
wmi_bmof 16384 0
x86_pkg_temp_thermal 16384 0
x_tables 40960 1 ip_tables
alexandre@ordidalex:~$
alexandre@ordidalex:~$ xrandr
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
3840x2160 60.00 + 59.98 59.97
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
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)
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
DP-1-1 disconnected (normal left inverted right x axis y axis)
DP-1-2 disconnected (normal left inverted right x axis y axis)
DP-1-3 disconnected (normal left inverted right x axis y axis)
alexandre@ordidalex:~$
alexandre@ordidalex:~$ uname -a
Linux ordidalex 4.15.0-118-generic #119-Ubuntu SMP Tue Sep 8 12:30:01 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
alexandre@ordidalex:~$
alexandre@ordidalex:~$ find /sys/devices/ -iname edid
/sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-eDP-1/edid
/sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-2/edid
/sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-3/edid
/sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/edid
alexandre@ordidalex:~$
Je précise que j'ai testé ces commandes
sans être branché au vidéoproj. Si c'est important de l'être, je peux les refaire.