bookmark_borderMonitor Jitters

This is a technical problem I have been experiencing for some time, but have only just solved. Web searches revealed that a lot of people have this problem, but I was not able to find a solid solution. So, I’m posting my solution here to my blog so that maybe somebody else can find it.

The Setup

I have two external monitors attached to my Windows laptop through a docking station. For a long time, both monitors were identical (Dell S2415H) 24″ 1920×1080 flat screen monitors. Then I saw a larger (Acer EB321HQU) 31.5″ 2048×1152 flat screen monitor on sale for a really good price. The Acer is almost comically large for my desk, especially with it looming over my normal-sized laptop.

Now, both monitors have always been connected to the docking station using HDMI cables, but the docking station only has one HDMI jack and two DisplayPort jacks. I have the Acer monitor connected to the one HDMI jack, and connect the Dell monitor through an HDMI to DP adapter.

The Problem

Video on the Dell monitor “jitters”. Moving windows around creates “ghost” images on the display. The second monitor was basically unusable in this state. Now I thought that the problem was caused by the HDMI-DP adapter, but switching the connections around did not make any difference. The Dell always jittered, even if it was connected directly with the Acer on the adapter.

I did not have this problem when I was using the two identical Dell monitors. I could not figure out what was causing the problem, so I stopped using the Dell monitor with my personal laptop, and connected it full time to my work laptop.

The Solution

Open the Display Settings dialog, and select the jittery monitor. Open the “Advanced display settings” for the jittery monitor, and choose a different frequency from the “Refresh rate” menu. That’s it!

The jitter problem seems to have been caused by a refresh rate mismatch between the two monitors. The Acer recommends a refresh rate of 59.940 Hz, so having the Dell configured for a different rate was a problem.

Syncing the two rates solved the problem. No more jitters!

bookmark_borderKichō Curtains

Kichō are curtains that ancient and medieval Japanese nobles used inside rooms as movable partitions. The curtains hang from a stand, so they can be moved around as needed. You can think of them as the ancient version of “pipe and drape” dividers that you often see as trade show booths, but slightly more decorative, and for the home. They differ from other kinds of Japanese curtains in that the stand makes them freestanding and more portable. You will frequently see them in illustrated scrolls as backdrops, or screens to block a figure from view. They largely fell out of favor by the end of the Momoyama period (1573) and were replaced by the more solid shoji and more decorative byobu. Wikipedia actually has a whole List of partitions of traditional Japanese architecture, and you can learn more about differences there.

Anyway, I’ve had kichō on my to-do list for a while. I assembled a working stand a few years ago, and used it to display some projects in the interim, but only got around to constructing the curtains themselves until recently. There is a little more to it than you might imagine. Here’s what I wound up with:

Kicho from the front
Kicho from the back

The white curtain bodies are twill weave silk from Dharma Trading, and the black “streamers” are black lightweight habotai also from Dharma. The curtains (or “katabira“) are double layer. Very often, the katabira would be decorated on the front panel, and plain on the back. I decided to skip the weeks that it would have taken me to decorate the fronts and skip directly to construction. Maybe I will get back to the decoration later. I made each panel by cutting 12-foot long 15-inch wide panels from the 45-inch wide fabric. I gave all of the panels a rolled-edge on the serger to simulate the selvedge that would be present on narrow-loom fabric.

The streamers (or “ribbons” according to Wikipedia) are half panels 15-feet long and 7.5-inches wide. I sewed the half-panels into tubes, turned the tubes inside out, and ironed them flat with the seams down one edge. I tucked in the loose ends and sewed them shut. The streamers needed to be longer because they are supposed to drape over the top and come a bit down the back. The slits for the lacing go all the way through both parts of the ribbons, and both layers of the katabira. I did not want to sew the dozens of buttonholes this would have required, so the slits are just cuts in the fabric that I made with my Clover Button Hole Cutter.

The lacing is basic edo yatsu braid that I made with some cotton yarn that I dyed as part of a group fiber activity back in the Autumn. I twisted up the hanks of yarn so that more dye got to some parts of the yarn than to others. The yarn itself is not super interesting, but I think it makes great pebbled-texture braids. Two lengths of braid lace the panels together, and shorter pieces of braid tie the rod that suspends the curtains (or “curtain rod”, if you will) to the crosspiece (or “te“) of the stand.

The stand itself is made of wood, as you might imagine. The base (or “tsuchii“) is a box with enough room inside to hold 20 to 30 pounds of iron weights. There are holes in the lid and a brace in the bottom to hold the two legs (or “ashi“) upright. The te rests on the tops of the ashi. The te and ashi are made of 6-foot long poplar dowels from the hardware store. The te is secured to the ashi using some custom made brass brackets that secure with brass cotter pins. The ends of the te are also embellished with a little brass. Everything wood is finished in black polyurethane to simulate lacquer.

I’m pretty happy with the way this all worked out. I may or may not make the curtains more interesting. I’d like to add more metalwork to the stand, and there are some problems with stability. A number of people have been talking about these lately, and I’m glad I went ahead and just made them. They should come in handy for defining smaller spaces in larger rooms, and they are much more portable than shoji.

bookmark_border“The Road to Roswell” by Connie Willis

Much of Connie Willis‘ novels can be pigeonholed as “romantic comedies”, where two young people thrown together into a difficult situation manage to overcome adversity and wind up falling in love. There’s nothing wrong with that, and it does make me wonder why none of her books have been made into movies. This kind of energetic romp plays very well with general audiences, and Willis’ “difficult situations” are usually sfnal in nature so they appeal to genre audiences as well.

Can two people find love while traveling through time for the History Department of a major university? Can two people find love while being psychically linked to somebody they dislike? Can two people find love while researching death and the possibility of an afterlife? Can two people find love while finding out the truth about interplanetary aliens on Earth and alien abduction?

That last one, of course is the premise of The Road to Roswell. Our main characters are actually abducted by aliens, but it’s not what you think! Everybody is still on Earth, and they really are on the road, and the road does lead to (and from) Roswell. The cast is what you might expect in any Western: a kidnapped damsel, a criminal on the run, a lying conman, a lonesome cowboy, a dishonest gambler, and a religious fanatic. Most are not played by the stereotype you might expect from that description, however. The criminal on the run is a space alien who resembles a tumbleweed. The fanatic follows the ‘religion’ of UFOlogy and quotes from its sacred texts about abduction and history.

This book is also about communication, and how hard it can be to communicate when it’s not just that you don’t share a language, but you don’t share basic concepts. What is alien, anyway? What is love? How do you tell somebody what you’re looking for and where to find it when you can’t describe it and you’re not sure where you are? This is the kind of thing that Connie Willis is really good at. I saw her speak at an SF conference long ago, and she is literally charming. Her unassuming language and subtle presentation style have a lovely way of suggetsing these deeper concepts bit by bit until suddenly your head is in the right place to really “get it”, youknowwhatimean?

I’ve enjoyed previous books from Connie Willis, and I enjoyed this one. I feel it bogs down a little in the middle, though. It’s part of the story, but even the characters start to get confused about what’s going on and what they are doing. This all pays off in the end, and the pace picks up towards the crashing conclusion where they all live happily (?) ever after (?). When’s the movie coming out?

bookmark_borderBlack Band Eboshi

I have made dozens of eboshi over the years, both for myself and other people. One thing has always kind of bothered me about my eboshi, though. I tend to put a white headband on my eboshi because it is mostly what people are expecting, but many of the eboshi you see in historical illustrations do not have these white bands. Here, for instance, is an illustration from the Kitano Tenjin Engi emaki:

#7 indicates nae-eboshi

I picked this illustration because it is a fairly accurate portrait of me. You can see that the nae-eboshi in that image does not have a white band, but is all black. Quite simple to make a couple of eboshi using black fabric for the band instead of white.

Black Band Nae-eboshi

You will probably notice that the eboshi in the illustration is less pointy at the top than mine, and also does not have the long fabric ties that hang down in the back. I have some theories about that, but one change at a time, folks.

bookmark_borderShitozu, from Linen

The next step in the long running Bunkan Sokutai Sugata project, I’m working my way down to the feet. When wearing the sokutai, asagutsu shoes (really more like clogs) protect the feet from the ground, and shitozu socks protect the feet from the asagutsu (or is it the other way around?). Apparently, they pre-date the split-toe and the idea that walking on a seam all day will cause blisters.

Shitozu in Linen

Mine are based on this one in the Shoso-in Imperial Treasure Repository:

Sock of bast-fiber cloth, No. 53.

I traced the photo in a drawing package, scaled it up to the size of my foot, printed the pattern, cut two pieces from surplus cotton canvas, sewed them together, everted the sock, and tried it on. Too tight. Modify the pattern a bit and iterate. Still too tight. Iterate. Success! That was actually pretty rapid for this kind of thing.

Now that I had a working pattern, it was time to cut four pieces and make the final copy out of white linen. A couple of cuff hems, and some decoration with a fabric marker, and they are ready to wear once I finally make the asagutsu. According to the Shoso-in site, the original bears the seal of “Tōji-kōin”, and if you visit the page to view the back there appears to be writing up near the cuff. It’s probably something like “worn on the occasion of his birthday” or something. I wrote “Ishiyama 2 5” on mine. If I ever make a real seal I’ll stamp them.

Lefty and Righty Shitozu

bookmark_borderHemp Sankakudai Braid

I was making a simple drawstring bag out of some surplus fabric, and found myself in need of a reliable drawstring. I had previously purchased some hemp beading cord with which to experiment, so this seemed like “the opportune moment”.

Sankakudai 5-set in Hemp

I measured out a “quadruple length” to start with. Typically, I clamp my warping posts to this chest of drawers I have in my studio. If I use the full width of the chest, a “single length” is about 52 inches. If I use all three pegs, a quadruple length (approx 17 feet) is pretty simple to measure out, but sometimes is not easy to transfer to the braiding stand. It went OK this time.

Close-up on the braid

Since the hemp cord is stiff, I used my heaviest tama to make a nice tight braid. With only one color in the braid, it looks just like a “3-set” braid, but it really does have 5 strands. With these simple sankakudai braids the structure all looks the same unless you have more colors worked in the braid.

It took me a while to work through all of this material, but I wound up with plenty of hemp cord for all my drawstring needs, about 12 feet.

bookmark_borderComet Pennons

More than six years ago, the Baroness of the Debatable Lands asked me if I would organize people to make new pennons to hang from the new Baronial “list ropes”. The list ropes are used to form the boundaries of the fighting lists (think “boxing ring”) during tournaments, especially where you might have multiple fights happening at once. Penons hanging from the ropes makes them more visible and more festive. In the SCA, people fight for fun and honor. Festive is good!

These penons are about 12 inches long and are made from the same cotton/poly material we use for windscreens. We painted comets on them as a group activity at the Baronial 50th Aniversary event, and I finished them up over the holidays. There are Seventeen of them!

The paint is just Jacquard Neopaque White. These might get caught out in the rain, or might need to be thrown in the washer. This is not the time for historical re-creation, but practical thing-making. I still need to get my hand on the list ropes themselves so I can attach the pennons, but that should happen later this month. I don’t have a block or screen for printing these, so each comet is a unique little snowflake. I hope people enjoy recognizing the ones they painted.

bookmark_border“Polostan” by Neal Stephenson

I am pleased that Neal Stephenson has finally convinced his publisher that a series of 300 page volumes is preferable to a single 900 to 1200 page tome. However, since the story contained in the first volume of Stephenson’s new “Bomb Light series” is really just the back story for the main character, it is difficult to review. I will say that this first volume is told with Stephenson’s characteristic flair, and with skillful arrangement. Exposition is accomplished through flashback, and history (and History) combines with forward narrative at a steady pace until we are all caught up and ready for the drama to shift into racing gear. Even when you are expecting the end of the volume to occur, since with physical books it is unavoidable to notice when it is near, the turn that breaks act one from act two is somewhat surprising. Leave it to Stephenson to create characters who surprise even themselves with their sense of dramatic turn!

Anyway, the “Polo” of the title really does refer to the game of Polo, as played on ponies, and the “stan” really does refer to a culturally unified geographic region (a capital-S “State”, if you will). The main character is a Wyoming pony-trainer outlaw communist operative hero of the highest order, and her manipulations bring the State of Polostan into existence just when she needs it to make the leap from state of mind into (fictional) reality.

There’s no way for me to tell where all this is going. Even Stephenson only vaguely refers to the “shape of this thing”. However, the characters are fully aware of Things that are Important, and I expect them to follow through on their personal histories with decision and aplomb.

This is a reasonably quick read, with a good foundation in world history and a strong plot with a relatable main character. Aurora is not a genius, but she is smart and brave. She does what she needs to survive, but she cares for others and tries to limit the harm to the uninvolved. A real hero! I hope she survives.

bookmark_borderA Calendar for You

                               2025

       January               February                 March
Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa
          1  2  3  4                      1                      1
 5  6  7  8  9 10 11    2  3  4  5  6  7  8    2  3  4  5  6  7  8
12 13 14 15 16 17 18    9 10 11 12 13 14 15    9 10 11 12 13 14 15
19 20 21 22 23 24 25   16 17 18 19 20 21 22   16 17 18 19 20 21 22
26 27 28 29 30 31      23 24 25 26 27 28      23 24 25 26 27 28 29
                                              30 31
        April                   May                   June
Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa
       1  2  3  4  5                1  2  3    1  2  3  4  5  6  7
 6  7  8  9 10 11 12    4  5  6  7  8  9 10    8  9 10 11 12 13 14
13 14 15 16 17 18 19   11 12 13 14 15 16 17   15 16 17 18 19 20 21
20 21 22 23 24 25 26   18 19 20 21 22 23 24   22 23 24 25 26 27 28
27 28 29 30            25 26 27 28 29 30 31   29 30

        July                  August                September
Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa
       1  2  3  4  5                   1  2       1  2  3  4  5  6
 6  7  8  9 10 11 12    3  4  5  6  7  8  9    7  8  9 10 11 12 13
13 14 15 16 17 18 19   10 11 12 13 14 15 16   14 15 16 17 18 19 20
20 21 22 23 24 25 26   17 18 19 20 21 22 23   21 22 23 24 25 26 27
27 28 29 30 31         24 25 26 27 28 29 30   28 29 30
                       31
       October               November               December
Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa
          1  2  3  4                      1       1  2  3  4  5  6
 5  6  7  8  9 10 11    2  3  4  5  6  7  8    7  8  9 10 11 12 13
12 13 14 15 16 17 18    9 10 11 12 13 14 15   14 15 16 17 18 19 20
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                       30