Dual monitor

[BLACKCREAMSUPREME]

I have an awesome setup running MX on an old iMac that's been brought back to modern usability.
When I booted from a live-usb it displays on both the iMac screen and to a display port->DVI->HDMI->Phillips 42" TV, however, when I installed and booted from the hard drive, it no longer is able to see the 2nd Phillips TV monitor. How can I make it work again?

I'm attaching the sysreport

sysreport.txt

from the installed, non-working-2-monitor setup.

I'd also like to know how to monitor the line-in on this machine, so I can plug my chromecast into the line-in and share the computer speakers with it, but that's probably an upcoming thread.

Thanks,

[Huckleberry Finn]

Welcome to the forum and thanks for the system report file, but.. what we always request is "Quick System Info" from Menu.

Just start it and directly right-click paste into the post (without copying manually and editing) :)

Meanwhile, this looks like AV Linux:

Kernel Linux 5.9.1-rt20avl1 (x86_64)
Version #1 SMP PREEMPT_RT Sat Oct 31 12:21:58 EDT 2020

[BLACKCREAMSUPREME]

I like editing out my user info. Let's see if this could possibly make a difference.

Code: Select all

Snapshot created on: 20210521_1959
System:    Host: <filter> Kernel: 5.9.1-rt20avl1 x86_64 bits: 64 compiler: N/A 
           parameters: BOOT_IMAGE=/boot/vmlinuz-5.9.1-rt20avl1 
           root=UUID=<filter> ro quiet nomodeset threadirqs noresume 
           efi=runtime 
           Desktop: Openbox 3.6.1 info: xfce4-panel dm: SLiM 1.3.6 Distro: AVL-MXE 
           base: Debian GNU/Linux 10 (buster) 
Machine:   Type: Desktop System: Apple product: iMac7,1 v: 1.0 serial: <filter> Chassis: 
           type: 13 v: Mac-F4238CC8 serial: <filter> 
           Mobo: Apple model: Mac-F4238CC8 v: PVT serial: <filter> UEFI: Apple 
           v: IM71.88Z.007A.B03.0803051705 date: 03/05/08 
CPU:       Topology: Dual Core model: Intel Core2 Duo T7300 bits: 64 type: MCP arch: Core Merom 
           family: 6 model-id: F (15) stepping: B (11) microcode: BA L2 cache: 4096 KiB 
           flags: lm nx pae sse sse2 sse3 ssse3 vmx bogomips: 7980 
           Speed: 1266 MHz min/max: 800/2000 MHz Core speeds (MHz): 1: 1298 2: 1205 
           Vulnerabilities: Type: itlb_multihit status: KVM: VMX disabled 
           Type: l1tf mitigation: PTE Inversion; VMX: EPT disabled 
           Type: mds status: Vulnerable: Clear CPU buffers attempted, no microcode; SMT disabled 
           Type: meltdown mitigation: PTI 
           Type: spec_store_bypass status: Vulnerable 
           Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer sanitization 
           Type: spectre_v2 mitigation: Full generic retpoline, STIBP: disabled, RSB filling 
           Type: srbds status: Not affected 
           Type: tsx_async_abort status: Not affected 
Graphics:  Device-1: AMD RV610/M74 [Mobility Radeon HD 2400 XT] vendor: Apple driver: N/A 
           bus ID: 01:00.0 chip ID: 1002:94c8 
           Display: x11 server: X.Org 1.20.10 driver: none unloaded: fbdev compositor: compton 
           v: 0.1~beta2+20150922 resolution: 1680x1050~77Hz 
           OpenGL: renderer: llvmpipe (LLVM 11.0.1 128 bits) v: 4.5 Mesa 20.3.4 compat-v: 3.1 
           direct render: Yes 
Audio:     Device-1: Intel 82801H HD Audio vendor: Apple driver: snd_hda_intel v: kernel 
           bus ID: 00:1b.0 chip ID: 8086:284b 
           Device-2: Numark Ion Discover DJ type: USB driver: snd-usb-audio bus ID: 3-1:2 
           chip ID: 15e4:0111 
           Sound Server: ALSA v: k5.9.1-rt20avl1 
Network:   Device-1: Broadcom and subsidiaries BCM4321 802.11a/b/g/n 
           vendor: Apple AirPort Extreme driver: b43-pci-bridge v: N/A port: 3000 
           bus ID: 04:00.0 chip ID: 14e4:4328 
           Device-2: Marvell 88E8058 PCI-E Gigabit Ethernet driver: sky2 v: 1.30 port: 2000 
           bus ID: 05:00.0 chip ID: 11ab:436a 
           IF: eth0 state: up speed: 1000 Mbps duplex: full mac: <filter> 
           IF-ID-1: wlan0 state: down mac: <filter> 
Drives:    Local Storage: total: 232.89 GiB used: 167.34 GiB (71.9%) 
           ID-1: /dev/sda vendor: Seagate model: ST3250820AS Q size: 232.89 GiB block size: 
           physical: 512 B logical: 512 B speed: 3.0 Gb/s serial: <filter> rev: E scheme: GPT 
Partition: ID-1: / raw size: 50.51 GiB size: 49.47 GiB (97.94%) used: 26.89 GiB (54.4%) fs: ext4 
           dev: /dev/sda2 
           ID-2: /home raw size: 179.09 GiB size: 175.28 GiB (97.87%) used: 138.30 GiB (78.9%) 
           fs: ext4 dev: /dev/sda4 
           ID-3: swap-1 size: 3.00 GiB used: 2.15 GiB (71.6%) fs: swap 
           swappiness: 10 (default 60) cache pressure: 100 (default) dev: /dev/sda3 
Sensors:   System Temperatures: cpu: 66.0 C mobo: N/A 
           Fan Speeds (RPM): cpu: 1290 
Repos:     Active apt repos in: /etc/apt/sources.list 
           1: deb http://liquorix.net/debian/ buster main
           2: deb http://www.bandshed.net/kernels/apt/ buster main
           3: deb [trusted=yes] https://cinelerra-gg.org/download/pkgs/debian10/ buster main
           4: deb https://dl.winehq.org/wine-builds/debian/ buster main
           No active apt repos in: /etc/apt/sources.list.d/connectify.list 
           Active apt repos in: /etc/apt/sources.list.d/debian-stable-updates.list 
           1: deb http://deb.debian.org/debian/ buster-updates main contrib non-free
           Active apt repos in: /etc/apt/sources.list.d/debian.list 
           1: deb http://deb.debian.org/debian/ buster main contrib non-free
           2: deb http://deb.debian.org/debian-security/ buster/updates main contrib non-free
           3: deb-src http://deb.debian.org/debian/ buster main contrib non-free
           Active apt repos in: /etc/apt/sources.list.d/google-chrome.list 
           1: deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main
           Active apt repos in: /etc/apt/sources.list.d/kxstudio-debian-ppas.list 
           1: deb http://ppa.launchpad.net/kxstudio-debian/libs/ubuntu/ bionic main
           2: deb http://ppa.launchpad.net/kxstudio-debian/music/ubuntu/ bionic main
           3: deb http://ppa.launchpad.net/kxstudio-debian/plugins/ubuntu/ bionic main
           4: deb http://ppa.launchpad.net/kxstudio-debian/apps/ubuntu/ bionic main
           5: deb http://ppa.launchpad.net/kxstudio-debian/kxstudio/ubuntu/ bionic main
           Active apt repos in: /etc/apt/sources.list.d/kxstudio-external.list 
           1: deb [arch=amd64,i386] https://kx.studio/repo/ stable free
           2: deb [arch=amd64,i386] https://kx.studio/repo/ gcc5 free
           Active apt repos in: /etc/apt/sources.list.d/mx.list 
           1: deb http://la.mxrepo.com/mx/repo/ buster main non-free
           2: deb http://la.mxrepo.com/mx/repo/ buster ahs
           Active apt repos in: /etc/apt/sources.list.d/spotify.list 
           1: deb http://repository.spotify.com/ stable non-free
           No active apt repos in: /etc/apt/sources.list.d/various.list 
Info:      Processes: 251 Uptime: 15d 2h 55m Memory: 1.94 GiB used: 1.63 GiB (83.9%) 
           Init: SysVinit v: 2.96 runlevel: 5 default: 5 Compilers: gcc: 8.3.0 alt: 8 
           Shell: quick-system-in running in: quick-system-in inxi: 3.0.36 

[Huckleberry Finn]

Graphics: Device-1: AMD RV610/M74 [Mobility Radeon HD 2400 XT] vendor: Apple driver: N/A
bus ID: 01:00.0 chip ID: 1002:94c8
Display: x11 server: X.Org 1.20.10 driver: none

You have nomodeset in boot parameters .

[BLACKCREAMSUPREME]

How do I modify that to fix it? Where is that setting?

[BLACKCREAMSUPREME]

Thx for engaging btw

[Huckleberry Finn]

"MX Boot Options" from Menu.

You'll see them all in "Kernel Parameters" box, just delete that and apply, reboot..

(If you had added that purposely for it was booting into a black screen, then we need to try other solutions instead of nomodeset , to make it load its own driver)

[GordonS]

FWIW, as I couldn't get any access to the tools of the left-hand screen of my dual-screen setup, I pulled the HDMI plug from the non-functioning monitor while I booted, then plugged it in again, and I was then able to get to the tools (Right-click->Setting->Display or something similar IIRC ... I'm on a different Linux at present, or I'd check that for correctness).

After setting the two screens as I want, it boots up OK from then on, though in my case, at least, I have only a R/H screen half for log-in (I'll likely sort that sometime.)