Are there any utilities out there that allow you to manually define available screen area?

I have a spare 27 inch monitor that I’d like to use in vertical mode as a side monitor, but it’s way too tall – are there any tools out there that allow you to manually define the effective usable area of the display (as if the screen was actually a different size)?

I’m guessing this would have to be done by the GPU, if it’s even possible?

Here’s a screenshot of what I’m after:

ESXi 6.7 – 3D Support only available with Red Hat or Ubuntu

I have a server running ESXi 6.7U2 which serves 3 VMs on my local network.

I have installed Arch Linux on 2 of them (using the Other 3.x or higher Linux option) and the Enable 3D Support is greyed out. I tried creating a new VM — and found that if I choose the Guest OS to be one of the following list, then the option becomes available under the VM settings when creating a new VM.

  1. Cent OS 7 (64-bit)
  2. Cent OS 8 (64-bit)
  3. Red Hat Enterprise Linux 8 (64-bit)
  4. Red Hat Fedora (64-bit)
  5. Oracle Linux 8 (64-bit)
  6. Ubuntu Linux (64-bit)

All the other options including Asianux, CoreOS, Debian, Novell, Other XXX kernel or higher Linux, Other Linux, SuSe Enterprise Linux, openSuse, Vmware Photon Linux have the 3D option greyed out.

Of the list that does support it, except Ubuntu, all others are based off of Red Hat — so it makes sense that if one supports it, others do as well.

It’s also strange that Ubuntu supports it, but Debian doesn’t given that Ubuntu is based off of Debian and usually one’s packages etc work without issues on the other distro.

Is there a way to enable 3D support for these other distros?

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How to justify using available code (in different language) for comparing algorithms

I have proposed an algorithm for a scheduling problem in a submitting paper. In the revision, the reviewer asked us to compare with another algorithm in the literature. Our algorithm is in MATLAB, and the comparing one is in C++, and the code is publicly available. We did not re-implement the C++ code, to avoid any decrease in the efficiency of their algorithm, and to save time as well. Now the reviewer is responding: “It is probable that there is a significantcant difference in performance between MATLAB and C++. The authors should make it clear if and how the results were normalized to ensure a fair comparison.”

So my question is this: Is there any (scientific) ratio or similar comparison between the efficiency of MATLAB and C++?

When we opted to use the available code, we thought it is completely OK since MATLAB is known to be slower. So using the comparing algorithm in a faster environment is OK. I should add that our algorithm is now performing much better than the comparing one.

When can I expect Italian regional train tickets to be available for purchase?

I need to travel from Lecco to Rome by train, in July. I am used to buying a single journey on a single ticket, since I believe that I will get more assistance if I bought the journey that way and the first train was late – compared to what I would get if I travelled with two separate tickets.

The problem is that timetables or prices for Lecco-Milan are not yet available, but tickets for the Milan-Rome leg are being sold and prices may rise based on demand. I know I can buy Lecco-Milan from the station for a fair price, but I am concerned about the transfer if I had two tickets.

When can I expect the regional tickets to be available in Trenitalia’s website? Should I simply book Milan-Rome separately from Trenitalia or even from Italo to avoid paying too much? Is doing a single purchase a less risky strategy, anyway?

Which spells are currently available to safeguard a fixed location?

After reading this question on how to safeguard an inanimate item, and thinking back on this question of mine, which was closed as too broad, I still think a list of spells that allow creating a very defensible location would be beneficial – I’ve checked back on that question of mine more than once, but I’m not sure it’s 100% complete.

Anyways, to limit the scope of this question, here are my criteria:

  • the spell is either permanent by default (such as Hallow) or can be made permanent by casting it repeatedly in the same spot (such as Forbiddance)
  • the spell has either
    • a detrimental effect on all creatures, specific creatures or specific creature types or …
    • a beneficial effect on specific (not all!) creatures or creature types
  • the spell does not create or is related to minions (such as Finger of Death for undead guardians, Simulacrum, or Geas’d hirelings.
  • terrain shaping spells are not within the scope of this question either, even if they can be creatively used to defend a location.
  • this question is limited to spells. Magical objects or mundane traps, useful as they might be, are therefore not within the scope of this question, either.

Since this should result in a very limited list of spells (no more than I dozen, I’d wager) which is comparatively easy to maintain as new rulebooks come out, I don’t believe this question should be considered off-topic, as per this meta.