Posts Tagged graphics
📅 September 15, 2017
“How can I make Linux Mint default to 100Hz for my fancy ultrawide monitor?”
If you are using a high-end monitor with Linux, such as the Acer Predator X34, that supports refresh rates higher than 60Hz, then you have probably noticed that Linux Mint defaults to a high refresh rate (100Hz if overclocked) at the login screen, but returns to a lower refresh rate (50Hz or 60Hz) after showing the desktop.
Sure, you can change the refresh rate to 100Hz manually using the Nvidia control panel, but this is a minor inconvenience that must be performed upon each boot.
“Is there a way to make the change persistent across reboots so I can always startup with, say, 80Hz?”
Yes. This article shows how to set a default refresh rate in Linux Mint 18.2 with the proprietary Nvidia drivers installed. The change is persistent across reboots. While this article uses the Acer Predator X34 overclocked to 100Hz, the same method should apply to any other monitor if using Nvidia drivers.
📅 September 9, 2017
“Does the Predator X34 ultra widescreen monitor work with Linux?”
Ultra widescreen 21:9 displays are increasing in numbers. Most reviews focus on games and Windows, but how well does a 21:9 aspect ratio monitor work with Linux?
Specifically, what can we expect with the top-of-the-line Acer Predator X34 display with a 100Hz refresh rate? Will the picture be stretched? Can we achieve a refresh rate higher than 60Hz in Linux? Will G-Sync truly produce smoother gameplay? Are there any unknown issues to be aware of when using Linux?
Yes, there are issues. Here are my results when testing the monitor with Linux Mint 18.2, Xubuntu 16.04, and Windows 7.
📅 May 30, 2017
Running Linux at high resolutions with fancy desktop effects works well on low-end graphics cards, but I wanted smoother performance, silent or near-silent graphics, and plenty of ports for different monitors. What to do?
Why, look for a new card, of course!
The latest 1080 line from Nvidia is overkill for my needs, but the 1060 is perfect. I wanted smoother desktop effects compared to the older Radeon card I had been using, and when I found the EVGA 1060 SC 3GB graphics card on sale, it was a must-buy.
Featuring lower power consumption, more cores, higher clock speeds, five ports to connect a variety of monitors, and favorable performance (in case my original plans on Linux are lackluster I can still use this card elsewhere), this 1060 card is a winner for my humble needs.
There are two versions of the GTX 1060: a 3GB version and a 6GB version. After pondering various benchmarks and reviews, I saw almost no difference between the two versions (other than the huge price difference at the time), so I chose the 3GB version. After all, it was on sale comparable to the cost of a lesser 1050, which only had three ports.
The real questions are these:
- “How does the EVGA GTX 1060 SC perform in Linux Mint 18.1?”
- “Is it easy to install drivers?”
- “Does it even work at all?”
Here is my experience installing and using this card with Linux Mint 18.1 64-bit.
Most modern HDTVs available today only offer HDMI and maybe component video inputs — neither of which the PlayStation (PSX/PS1/PSOne) supports.
However, the PSX outputs RGB (red/green/blue) signals through its video output port to produce the best colors and picture quality.
How can we use RGB with today’s HDMI televisions and monitors? This requires two items: a PSX SCART cable and a SCART-to-HDMI converter. With these, we can achieve almost pixel-perfect sharpness and colors from a nearly 20-year-old gaming console.
How smoothly will a heavily-modded, ENB-rich Skyrim perform when using two EVGA 980 Ti graphics cards in 2-way SLI?
Will Skyrim achieve 60 fps with ENB at 5760×1080 resolution using NVIDIA Surround?
Reviews adulate the power of the 980 Ti, but answers to these questions were nonexistent. The game Skyrim features beautiful eyecandy when modified with high-resolution textures, lighting effects, and high-performance, crash-inducing modifications, but these modifications produce a heavy performance hit that can bring the mightiest of graphics cards to their knees..
No 980 Ti reviews that I have read discuss performance when modifying older games. This is a shame because unoptimized games, like Skyrim, often require more GPU power to produce cutting-edge effects than the latest blockbuster games, which have been optimized for current technology. As a result, how well a new graphics cards runs a modified game — particularly Skyrim with ENB — can offer a glimpse into the card’s true potential.
While many older games can be modified, I chose to test Skyrim due the near-photographic results that are possible with its lush environment. Is ENB-laden Skyrim playable? Will Skyrim crash? Will there be the dreaded Blue Screen of Death? 1920×1080 resolution runs fine no matter what the game, but what about NVIDIA Surround at 5760×1080?
I had the opportunity to test two EVGA 980 Ti graphics cards in SLI (Scalable Link Interface) to see how a modified Skyrim would perform with ENB effects enabled. I compared these results to two MSi N770 Lighting graphics cards in 2-way SLI. The difference was amazing!
Ah, Compiz. Why must you be so quirky?
Before Unity and GNOME 3, Compiz and Emerald were easy to setup and run most of the time. The Ubuntu 10.10 era made the process simple, and Linux Mint 10 was even simpler.
These days, Compiz and Emerald can be a struggle. Are they feasible on today’s distributions? Yes, but… Being a tremendous fan of Compiz and Emerald, I resolved to make them work in Xubuntu 13.10 and Linux Mint 16 MATE, and this led to contradicting results yearning for the “good ol’ days.”
SweetFX Levels sets new black and white points. This means every pixel whose value is below the black point will be converted into pure black, and every pixel whose value is above the white point will be converted into pure white.
Think of this as the equivalent of level adjustment in GIMP using the histogram. Used sparingly, Levels will trim off excess whiteness, and it will darken shadows and other dark areas that appear too “washed out” when they should be darker.
On the other hand, visual detail is lost when used excessively, and drastic scene changes can be produced. This is either good or bad depending upon the desired effect. In short, Levels is an effect best used for minor touchups to the resulting image.