Hi!
I’ve searched the web about this issue but didn’t find any suitable solution for my case. Sorry if I’m duplicating the issue.
I have a setup with 3 monitors, my main monitor is a AOC 32" 2560x1440 and 2 Philips 24" 1920x1080. I share the inputs of my AOC with my PC (running Arch Linux with KDE/Plasma) on DP, my MacMini on DVI and my work laptop in HDMI.
I’ve been using an old Toshiba Satellite laptop with Ubuntu / Kubuntu (Plasma 5) without any problems, and have other devices working too when connected to the AOC’s HDMI input.
Now I got a new laptop from work, a Lenovo Thinkpad and, since now Fedora is also an option from our IT, I decided to go with Fedora. It’s Fedora 40 with Plasma 6. The laptop’s graphic chipset is Intel Raptor Lake-P [Iris Xe Graphics].
And here the problems began. I wasn’t able to get any signal on my AOC. On the “display configuration” window I can see it but when I switch to HDMI the laptop’s screen flashes for a bit and I get nothing on the AOC’s screen. I tried to install X11 but it didn’t work too.
Then I tried to use my HDMI-VGA adapter and connect to the VGA input. It worked fine but, of course, no 2560x1440 (QHD) resolution as it is not supported with VGA. Back to HDMI, no signal, AOC’s go back to DP. Changing refresh rates between 60Hz and 75Hz did not make any difference.
Later I tried to connect to the HDMI input of one of my Phillips screens. It worked well with 1920x1080 (FHD). Then I tried something… I changed the HDMI cable on my AOC and… it worked! I thought it was a cable related issue. However, after I returned from lunch the problem returned. Now, even with the VGA input (with the adaptor) the image appears but it’s flickering. I reboot the laptop, disconnect / reconnect the cable, switched off / on the monitor but nothing worked out. Again, I’m unable to get HDMI working on my AOC. I also tried to change the screen resolution to 1920x1080 but didn’t work.
The following image shows the display configuration after I connect the HDMI cable and before I switch the AOC’s input from DP to HDMI:
After I switch AOC’s input to HDMI, the laptop’s screen flashes and I have this now:
“An output has been removed?”
Here follows my results from the command “inxi -Fzxx”:
System:
Kernel: 6.9.7-200.fc40.x86_64 arch: x86_64 bits: 64 compiler: gcc
v: 2.41-37.fc40
Desktop: KDE Plasma v: 6.1.1 tk: Qt v: N/A wm: kwin_x11 dm: SDDM
Distro: Fedora Linux 40 (KDE Plasma)
Machine:
Type: Laptop System: LENOVO product: 21H3003CPG v: ThinkPad L15 Gen 4
serial: <superuser required> Chassis: type: 10 serial: <superuser required>
Mobo: LENOVO model: 21H3003CPG v: SDK0T76530 WIN
serial: <superuser required> part-nu: LENOVO_MT_21H3_BU_Think_FM_ThinkPad
L15 Gen 4 UEFI: LENOVO v: R24ET41W (1.24 ) date: 05/24/2024
Battery:
ID-1: BAT0 charge: 59.1 Wh (100.0%) condition: 59.1/57.0 Wh (103.6%)
volts: 13.0 min: 11.5 model: SMP 5B11M90006 serial: <filter> status: full
CPU:
Info: 10-core (2-mt/8-st) model: 13th Gen Intel Core i7-1355U bits: 64
type: MST AMCP arch: Raptor Lake rev: 3 cache: L1: 928 KiB L2: 6.5 MiB
L3: 12 MiB
Speed (MHz): avg: 448 high: 685 min/max: 400/5000:3700 cores: 1: 600
2: 685 3: 400 4: 400 5: 492 6: 400 7: 400 8: 400 9: 400 10: 400 11: 400
12: 400 bogomips: 62668
Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
Graphics:
Device-1: Intel Raptor Lake-P [Iris Xe Graphics] vendor: Lenovo driver: i915
v: kernel arch: Gen-13 ports: active: HDMI-A-1,eDP-1
empty: DP-1, DP-2, DP-3, DP-4 bus-ID: 00:02.0 chip-ID: 8086:a7a1
Device-2: Syntek Integrated Camera driver: uvcvideo type: USB rev: 2.0
speed: 480 Mb/s lanes: 1 bus-ID: 3-5:3 chip-ID: 174f:1812
Display: x11 server: X.Org v: 1.20.14 with: Xwayland v: 24.1.0
compositor: kwin_x11 driver: X: loaded: modesetting alternate: fbdev,vesa
dri: iris gpu: i915 display-ID: :0 screens: 1
Screen-1: 0 s-res: 4480x1440 s-dpi: 96
Monitor-1: HDMI-A-1 mapped: HDMI-1 pos: top-left model: AOC Q3279WG5B
res: 2560x1440 dpi: 90 diag: 842mm (33.1")
Monitor-2: eDP-1 pos: primary,bottom-r model: AU Optronics 0x25ed
res: 1920x1080 dpi: 142 diag: 395mm (15.5")
API: EGL v: 1.5 platforms: device: 0 drv: iris device: 1 drv: swrast
surfaceless: drv: iris x11: drv: iris inactive: gbm,wayland
API: OpenGL v: 4.6 compat-v: 4.5 vendor: intel mesa v: 24.1.2 glx-v: 1.4
direct-render: yes renderer: Mesa Intel Graphics (RPL-U)
device-ID: 8086:a7a1
API: Vulkan v: 1.3.283 surfaces: xcb,xlib device: 0 type: integrated-gpu
driver: N/A device-ID: 8086:a7a1 device: 1 type: cpu driver: N/A
device-ID: 10005:0000
Audio:
Device-1: Intel Raptor Lake-P/U/H cAVS vendor: Lenovo
driver: sof-audio-pci-intel-tgl bus-ID: 00:1f.3 chip-ID: 8086:51ca
API: ALSA v: k6.9.7-200.fc40.x86_64 status: kernel-api
Server-1: PipeWire v: 1.0.7 status: active with: 1: pipewire-pulse
status: active 2: wireplumber status: active 3: pipewire-alsa type: plugin
4: pw-jack type: plugin
Network:
Device-1: Intel Raptor Lake PCH CNVi WiFi driver: iwlwifi v: kernel
bus-ID: 00:14.3 chip-ID: 8086:51f1
IF: wlp0s20f3 state: down mac: <filter>
Device-2: Intel Ethernet I219-V vendor: Lenovo driver: e1000e v: kernel
port: N/A bus-ID: 00:1f.6 chip-ID: 8086:1a1f
IF: enp0s31f6 state: up speed: 1000 Mbps duplex: full mac: <filter>
IF-ID-1: tun0 state: unknown speed: 10000 Mbps duplex: full mac: N/A
Bluetooth:
Device-1: Intel AX201 Bluetooth driver: btusb v: 0.8 type: USB rev: 2.0
speed: 12 Mb/s lanes: 1 bus-ID: 3-10:6 chip-ID: 8087:0026
Report: btmgmt ID: hci0 rfk-id: 1 state: up address: <filter> bt-v: 5.2
lmp-v: 11
Drives:
Local Storage: total: 1.36 TiB used: 129.79 GiB (9.3%)
ID-1: /dev/nvme0n1 vendor: Corsair model: MP600 MICRO size: 931.51 GiB
speed: 63.2 Gb/s lanes: 4 serial: <filter> temp: 44.9 C
ID-2: /dev/sda vendor: Western Digital model: WD Blue SA510 M.2 2280 500GB
size: 465.76 GiB type: USB rev: 2.1 spd: 480 Mb/s lanes: 1 serial: <filter>
Partition:
ID-1: / size: 560.49 GiB used: 55.7 GiB (9.9%) fs: ext4 dev: /dev/dm-0
mapped: fedora-root
ID-2: /boot size: 973.4 MiB used: 351 MiB (36.1%) fs: ext4
dev: /dev/nvme0n1p2
ID-3: /boot/efi size: 598.8 MiB used: 19 MiB (3.2%) fs: vfat
dev: /dev/nvme0n1p1
ID-4: /home size: 343.94 GiB used: 73.73 GiB (21.4%) fs: ext4
dev: /dev/dm-1 mapped: fedora-home
Swap:
ID-1: swap-1 type: zram size: 8 GiB used: 27.8 MiB (0.3%) priority: 100
dev: /dev/zram0
Sensors:
Src: /sys System Temperatures: cpu: 45.0 C mobo: N/A
Fan Speeds (rpm): cpu: 1756
Power: 12v: N/A 5v: 5 3.3v: N/A vbat: N/A
Info:
Memory: total: 32 GiB note: est. available: 31.01 GiB used: 3.65 GiB (11.8%)
Processes: 355 Power: uptime: 13m wakeups: 0 Init: systemd v: 255
target: graphical (5) default: graphical
Packages: pm: snap pkgs: 12 Compilers: clang: 18.1.6 gcc: 14.1.1
Shell: Bash v: 5.2.26 running-in: terminator inxi: 3.3.34
And “xrandr --query”:
Screen 0: minimum 320 x 200, current 4480 x 1440, maximum 16384 x 16384
eDP-1 connected primary 1920x1080+2560+360 (normal left inverted right x axis y axis) 344mm x 194mm
1920x1080 60.05*+ 60.01 59.97 59.96 59.93
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
HDMI-1 connected 2560x1440+0+0 (normal left inverted right x axis y axis) 725mm x 428mm
2560x1440 59.95*+ 74.97
1920x1080 60.00 50.00 59.94
1280x1440 59.91
1680x1050 59.88
1280x1024 75.02 60.02
1440x900 59.90
1280x960 60.00
1280x720 60.00 50.00 59.94
1024x768 75.03 70.07 60.00
832x624 74.55
800x600 72.19 75.00 60.32 56.25
720x576 50.00
720x480 60.00 59.94
640x480 75.00 72.81 66.67 60.00 59.94
720x400 70.08
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-4 disconnected (normal left inverted right x axis y axis)
Any suggestions?
Best regards,
Carlos Santos