Running xfce on Manjaro on an iMac 12,1 (2011 21"), using a Thunderbolt 1.0 to HDMI adapter to a 21" monitor (so, two 21.5" monitors, one internal on the right, the external monitor to the left).
I've always had a problem with the second monitor not waking up in time after waking from sleep, or even just monitor sleep. It's a hardware/firmware issue with the adapter not waking up on time.
The problem I'm having with Manjaro+XFCE is that often the monitor setup will get reset to mirroring, and I have to manually change the monitor arrangement. The nifty pop-up window that appears in XFCE whenever the monitor setup changes has an option to expand to the right, but not to expand to the left (the iMac has ports along the right side, so it has to stay to the right of the secondary monitor.
My question is this: is there a way to read and write the monitor setup from the command line, so that I can reset it quickly? Something like xrandr --dump >file and xrandr --read <file?
xrandr output:
$ xrandr --listmonitors
Monitors: 2
0: +*eDP 1920/475x1080/267+1920+0 eDP
1: +DisplayPort-0 1920/475x1080/267+0+0 DisplayPort-0
$ xrandr -q
Screen 0: minimum 320 x 200, current 3840 x 1080, maximum 16384 x 16384
eDP connected primary 1920x1080+1920+0 (normal left inverted right x axis y axis) 475mm x 267mm
1920x1080 59.93*+
1680x1050 60.00
1400x1050 60.00
1280x1024 59.95
1440x900 59.99
1280x960 59.99
1280x854 59.95
1280x800 59.96
1280x720 59.97
1152x768 59.95
1024x768 59.95
960x540 59.82
800x600 59.96
848x480 59.94
720x480 59.94
640x480 59.94
DisplayPort-0 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 475mm x 267mm
1920x1080 60.00*+ 50.00 59.94
1920x1080i 60.00 50.00 59.94
1680x1050 59.88
1280x1024 75.02 60.02
1440x900 59.90
1280x960 60.00
1280x800 59.91
1152x864 75.00
1280x720 60.00 50.00 59.94
1440x576 50.00
1024x768 75.03 70.07 60.00
1440x480 60.00 59.94
832x624 74.55
800x600 72.19 75.00 60.32 56.25
720x576 50.00
720x480 60.00 59.94
640x480 75.00 66.67 60.00 59.94
720x400 70.08
DisplayPort-1 disconnected (normal left inverted right x axis y axis)
DisplayPort-2 disconnected (normal left inverted right x axis y axis)
VGA-1 disconnected (normal left inverted right x axis y axis)
VGA1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
inxi output:
$ inxi -Fxxxza --no-host
System: Kernel: 5.6.19-2-MANJARO x86_64 bits: 64 compiler: gcc v: 10.1.0
parameters: BOOT_IMAGE=/boot/vmlinuz-5.6-x86_64 root=UUID=c3b1cff2-ed37-4ee0-af3b-d404097c96ef rw quiet
cryptdevice=UUID=eb7684b1-691d-476a-81d7-9f553231a205:luks-eb7684b1-691d-476a-81d7-9f553231a205
root=/dev/mapper/luks-eb7684b1-691d-476a-81d7-9f553231a205 apparmor=1 security=apparmor
resume=/dev/mapper/luks-1aa70ee5-d740-4f20-a0ae-699cefa5a54f udev.log_priority=3
Desktop: Xfce 4.14.2 tk: Gtk 3.24.20 info: xfce4-panel, plank wm: xfwm4 dm: LightDM 1.30.0 Distro: Manjaro Linux
Machine: Type: Desktop System: Apple product: iMac12,1 v: 1.0 serial: <filter> Chassis: type: 13 v: Mac-942B5BF58194151B
serial: <filter>
Mobo: Apple model: Mac-942B5BF58194151B serial: <filter> UEFI: Apple v: 85.0.0.0.0 date: 04/16/2019
CPU: Topology: Quad Core model: Intel Core i5-2400S bits: 64 type: MCP arch: Sandy Bridge family: 6 model-id: 2A (42)
stepping: 7 microcode: 2F L2 cache: 6144 KiB
flags: avx lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 20009
Speed: 1600 MHz min/max: 1600/3300 MHz Core speeds (MHz): 1: 1600 2: 1600 3: 1600 4: 1600
Vulnerabilities: Type: itlb_multihit status: KVM: Split huge pages
Type: l1tf mitigation: PTE Inversion; VMX: conditional cache flushes, SMT disabled
Type: mds mitigation: Clear CPU buffers; SMT disabled
Type: meltdown mitigation: PTI
Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via prctl and seccomp
Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer sanitization
Type: spectre_v2 mitigation: Full generic retpoline, IBPB: conditional, IBRS_FW, STIBP: disabled, RSB filling
Type: srbds status: Not affected
Type: tsx_async_abort status: Not affected
Graphics: Device-1: Intel 2nd Generation Core Processor Family Integrated Graphics driver: i915 v: kernel bus ID: 00:02.0
chip ID: 8086:0102
Device-2: Advanced Micro Devices [AMD/ATI] Whistler [Radeon HD 6630M/6650M/6750M/7670M/7690M] vendor: Apple
driver: radeon v: kernel bus ID: 01:00.0 chip ID: 1002:6741
Display: x11 server: X.Org 1.20.8 driver: ati,intel,radeon unloaded: modesetting alternate: fbdev,vesa
resolution: 1920x1080~60Hz, 1920x1080~60Hz
OpenGL: renderer: AMD TURKS (DRM 2.50.0 / 5.6.19-2-MANJARO LLVM 10.0.0) v: 3.3 Mesa 20.1.3 compat-v: 3.1
direct render: Yes
Audio: Device-1: Intel 6 Series/C200 Series Family High Definition Audio driver: snd_hda_intel v: kernel bus ID: 00:1b.0
chip ID: 8086:1c20
Device-2: AMD Turks HDMI Audio [Radeon HD 6500/6600 / 6700M Series] vendor: Apple driver: snd_hda_intel v: kernel
bus ID: 01:00.1 chip ID: 1002:aa90
Sound Server: ALSA v: k5.6.19-2-MANJARO
Network: Device-1: Broadcom and subsidiaries NetXtreme BCM57765 Gigabit Ethernet PCIe driver: tg3 v: 3.137 port: 2000
bus ID: 02:00.0 chip ID: 14e4:16b4
IF: enp2s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
Device-2: Qualcomm Atheros AR93xx Wireless Network Adapter vendor: Apple AirPort Extreme driver: ath9k v: kernel
port: 2000 bus ID: 03:00.0 chip ID: 168c:0030
IF: wlp3s0 state: down mac: <filter>
IF-ID-1: eth0 state: down mac: <filter>
Drives: Local Storage: total: 8.64 TiB used: 5.90 TiB (68.3%)
ID-1: /dev/sda vendor: Western Digital model: WD5000AAKS-402AA0 size: 465.76 GiB block size: physical: 512 B
logical: 512 B speed: 3.0 Gb/s rotation: 7200 rpm serial: <filter> rev: 1D02 scheme: GPT
ID-2: /dev/sdb model: Mercury Electra 6G SSD size: 931.51 GiB block size: physical: 512 B logical: 512 B
speed: 6.0 Gb/s serial: <filter> rev: 7B0 scheme: GPT
ID-3: /dev/sdd type: USB vendor: Western Digital model: WD Elements 25A3 size: 7.28 TiB block size:
physical: 4096 B logical: 512 B serial: <filter> rev: 1021 scheme: GPT
Partition: ID-1: / raw size: 918.37 GiB size: 902.95 GiB (98.32%) used: 348.87 GiB (38.6%) fs: ext4 dev: /dev/dm-0
ID-2: swap-1 size: 12.85 GiB used: 822.0 MiB (6.2%) fs: swap swappiness: 60 (default) cache pressure: 100 (default)
dev: /dev/dm-1
Sensors: System Temperatures: cpu: 56.0 C mobo: N/A
Fan Speeds (RPM): cpu: 1199
Info: Processes: 277 Uptime: 10d 2h 03m Memory: 11.68 GiB used: 4.69 GiB (40.1%) Init: systemd v: 245 Compilers:
gcc: 10.1.0 Shell: bash v: 5.0.18 running in: xfce4-terminal inxi: 3.0.37
