Adding a second monitor fails
ajme...@gmail.com
R3.2
Expected behavior:
When I went into display settings and saw my second monitor, I clicked the "Use this display" button and it should have let me use my second display.
Actual behavior:
Qubes kicks me out to the sign in screen and won't let me sign back in unless I reinstall the entire operating system.
Steps to reproduce the behavior:
Go to display settings and click "Use this display" on your second monitor.
General notes:
I reinstalled Qubes twice and each time it did the same thing. I have 2 MSI GTX 970s running in SLI (at least in Windows. Not sure if it works in Qubes). I am using 1 HDMI port on each card.
cez...@gmail.com
I cannot provide you with a straight solution, but perhaps a workaround. Here are some thoughts.
In my experience it often fails when you try to install Qubes with nvidia, especially modern cards, but old cards have their quirks too. It's especially bad without nvidia proprietary drivers, which have to be installed in Dom0 after the Qubes installation if you want them to work properly. To begin with, it's nice that you even managed to boot up Qubes with your nvidia cards.
* Did you install nvidia in Dom0 before attempting to enable your second monitor btw?
* Alternatively, did you try install Qubes while the second monitor was on?
* Also SLI might indeed be a factor too, you might want to try disable it and see if it works. Assuming that you're new to Qubes, imho, it's well worth the trouble, Qubes is awesome.
* Do you have on-board graphics? Like for example Intel integrated graphics in your CPU? Intel graphics is known to run quite well in Linux/Qubes.
If you do have Intel integrated graphics (change to primary in bios, you don't need to remove the graphic cards) then this is the most likely approach that will work without much trouble. Also you hardly need anything more than Intel graphics, Qubes can't run games or similar yet anyway. You will have to switch screen cables or use a KVM to do so, if you choose to dual-boot with windows or another system. Assuming you still use your graphics card on your dual-boot systems.
Also I find it odd that you have to re-install Qubes. I usually have the opposite problem, my screen settings never ever stick with me between reboots or screen reconnections, I believe the fault is in XFCE4, I have to make an automated script to make settings stick.
Perhaps a similar solution would make it easier to test without having to re-isntall Qubes every time. If you find the file which saves the second monitor configuaration, at least you should be able to edit it without having to re-install every time you try something new.
Does tty terminal work? (Ctrl+Alt+F2, Ctrl+Alt+F1, etc.)?
Irregardless, too little information, it would be helpful if you provide more details, especially if someone more knowledgeable drops by. I'm just a regular user like you, after all.
AJ
cez...@gmail.com
> I did try installing Qubes while the second monitor was on but I did not install nvidia propietary drivers to Dom0. I will reinstall as soon as I can and try your solutions. Thanks for the help!
Hope it works for you, Qubes is definitely a nice system once you are settled down. Btw you might know this already, however Qubes 4 is about to be released soon, and RC1 is already out. Perhaps your issues will be fixed in the new release, there is a chance with Fedora 25, new hardware support, etc.
Sean Hunter
Sent from my phone. Sorry if brief.
> On 28 Sep 2017, at 09:21, Coracle <cor...@perrygrovefarm.co.uk> wrote:
>
> I'm getting the message here and elsewhere that Qubes OS doesn't yet support extended desktops or multiple monitors.
>
> I want to build a navigation system for my boat based on Qubes OS. Modern nav systems control the autopilot and display large amounts of information on multiple monitors. Qubes OS offers not only a high level of security but also seems to offer an opportunity to run incompatible applications simultaneously. Not sure if this will mean anything to anyone here but I would like to run TimeZero + Navionics vector charts on Windows in one Qube simultaneously with OpenCPN + UKHO raster charts on Linux in a second Qube).
>
> Does anyone know whether Qube OS is eventually going to support multiple monitors?
>
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Holger Levsen
> I'm getting the message here and elsewhere that Qubes OS doesn't yet support extended desktops or multiple monitors.
on an 1-2 year old version of Fedora, so it supports whatever that supports.
so newer graphic cards might cause problems, or certain old ones too.
--
cheers,
Holger