shuppy (@delan) — [archived] 2023-05-31T17:50:08.041Z you know your (>)4K monitor is cutting edge when it takes four dvi connections and runs at a peppy 41 Hz, maybe 48 Hz if you’re lucky (also wow, “21 years ago”) https://en.m.wikipedia.org/wiki/IBM_T220/T221_LCD_monitors
shuppy (@delan) — [archived] 2023-05-31T17:50:08.041Z you know your (>)4K monitor is cutting edge when it takes four dvi connections and runs at a peppy 41 Hz, maybe 48 Hz if you’re lucky (also wow, “21 years ago”) https://en.m.wikipedia.org/wiki/IBM_T220/T221_LCD_monitors
![Robert O'Callahan (:roc), 21 years ago: “This is not an [sic] theoretical question, by the way. Some people where I work have IBM T221 displays, which are 200dpi. […]”](/posts/attachments/72162d3d-dac0-4408-9dc7-d9fd75d53a50/Untitled5063.png)
![IBM T220/T221 LCD monitors — The IBM T220 and T221 are LCD monitors that were sold between 2001 and 2005, with a native resolution of 3840×2400 pixels (WQUXGA) on a screen with a diagonal of 22.2 inches (564 mm). […] Costing around $8,400 in 2003, the displays saw few buyers. […] IBM T220 (9503-DG0) — The IBM T220 was introduced in June 2001 and was the first monitor to natively support a resolution of 3840×2400. […] On the rear of the display are two LFH-60 connectors. A pair of cables supplied with the monitor attaches to the connectors and splits into two single-link DVI connectors each, for a total of four DVI channels. […] IBM T220 came with a Matrox G200 MMS PCI-32 video card and two power supplies. To achieve native resolution the screen is sectioned into four columns of 960×2400 pixels or four tiles of 1920x1200 pixels. The monitor's native refresh rate is 41 Hz.](/posts/attachments/acfd685a-661a-4c86-ab77-ece1fbe362a2/Untitled5064.png)
![IBM T221 — This is a revised model of the original T220. […] Single, double, and quad-link support 13, 25, 41 Hz refresh rates, respectively. […] The 9503-DG5/DGP/DGM model had a native refresh rate of 48 Hz and did not come with a graphics card but included an external converter box that receives a dual-link DVI signal, re-synchronizes, buffers, and splits it into two single-link signals - one carrying odd pixels plus sync, and the other even pixels plus sync. […] Using just one dual-link DVI interface through a converter box allows a refresh rate of 24 Hz or 25 Hz. When the converter box is used in parallel with a third single-link DVI input, a refresh rate of 48 Hz can be achieved. In this mode the dual-link DVI drives the left 2624×2400 portion of the screen and the single-link DVI drives the remaining 1216×2400 portion. Alternatively, two converter boxes can be used simultaneously with two dual-link DVI ports to drive the DG5 as two 1920×2400 stripes at 48 Hz. […]](/posts/attachments/e4f6087d-53f0-419e-ac6f-fdedf280590f/Untitled5065.png)