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  • jzb 5:05 am on January 16, 2014 Permalink | Reply
    Tags: , , nvidia,   

    The 4K Desktop on Fedora 

    Seiki 4K on Fedora

    Seiki 4K on Fedora

    Like a lot of folks, I caught the “4K is for Programmers” post off Hacker News a few days ago (it’s here, but the link seems to be borked at the moment) and got to thinking about more desktop space. Much more.

    My current setup, when not traveling, involves a 27″ 2560×1440 display – usually connected to my laptop. Even with that, I found myself tabbing through windows too often balancing terminal windows, browser windows, and mail.

    Eventually I decided it was worth a shot, and ordered the Seiki 4K 39″ (SE39UY04) off Amazon. Unfortunately, didn’t seem to have much luck getting it going with my existing video card in the workstation or my laptop, so I wound up ordering a EVGA GeForce GTX760, and slapped that into the workstation.

    It takes a few steps to get it going at its full resolution on Fedora 20, at least with my setup:

    1. Install the nVidia drivers as explained in this F19 nVidia install/un-install guide.
    2. As shown in this forum post, add a line to /etc/X11/xorg.conf in the Device section with several options that are needed to pass the right resolution:Option "ModeValidation" "AllowNon60hzmodesDFPModes, NoEDIDDFPMaxSizeCheck, NoVertRefreshCheck, NoHorizSyncCheck, NoDFPNativeResolutionCheck, NoMaxSizeCheck, NoMaxPClkCheck, AllowNonEdidModes, NoEdidMaxPClkCheck"
    3. Add the file /usr/share/X11/xorg.conf.d/10-monitor.conf, with this content:
      Section "Monitor"
        Identifier "Monitor0"
        Modeline "3840x2160" 307.00 3840 4016 4104 4400 2160 2168 2178 2250 +hsync +vsync
      Section "Screen"
        Identifier "Screen0"
        Device "HDMI-0"
        Option "ModeValidation" "AllowNon60hzmodesDFPModes, NoEDIDDFPMaxSizeCheck, NoVertRefreshCheck, NoHorizSyncCheck, NoDFPNativeResolutionCheck, NoMaxSizeCheck, NoMaxPClkCheck, AllowNonEdidModes, NoEdidMaxPClkCheck"
        Monitor "Monitor0"
        DefaultDepth 24
        SubSection "Display"
          Depth 24
          Modes "3840x2160" "1920x1080"

    And that’s really it. Once I logged out and back in, it automagically detected the highest resolution and set the monitor to it.

    Is the picture as nice as the 27″ Cinema Display? No. But it works fine, and after some tweaking (turn the Sharpness to 0, use the User preset) it’s a respectable picture.

    I also tested plugging in the 27″ display and the 39″ display at the same time… yep, they both work. So if I can clear enough space on the desk, I’ll have waaay too much desktop space to play with. It has four outputs: HDMI, DisplayPort, and two DVI. I may see if it can drive all four just for grins, though I can’t imagine using that setup all day.. or having space for it on my desktop.

    Given that the 4K post seemed to spark a lot of conversation, I do hope we’ll start seeing some focus on higher resolution monitors in the near future. We’ve been stuck for a few years with stagnant pricing on higher resolution displays (e.g. 2560×1440 displays) and not many options. Looking forward to working with the new biggie-sized desktop.

    • Adam Williamson 6:39 am on January 16, 2014 Permalink | Reply

      Eh, I’m not really feeling the TV-sized displays. I’m much more interested in replacing my 2x U2211s with 2x UP2414Qs:


      now *that’s* how to use 4k 😉 Just waiting for the price to drop a bit.

    • Alfred Poor 5:29 pm on January 16, 2014 Permalink | Reply

      4K is a lot of pixels, but it’s still cheaper to buy them in smaller chunks. Four 20-inch 1080p monitors will likely cost less than the single 4K panel, and leave enough to pay for a good 4-monitor stand. Plus you don’t have to worry about finding a graphics card (and interface) that can handle 4K at a suitable frame rate.

      • jzb 5:49 pm on January 16, 2014 Permalink | Reply

        That’s actually not the case. This monitor was ~$500.

    • birger 7:25 am on January 17, 2014 Permalink | Reply

      The new Lenovo 28″ 4K screen is $799 (possibly with touch screen?), and with built-in android it is $1199.

      Dell have a new 4K 28″ at $699

      Asus also have a new fast 28″ 4K at $799.

      I am currently running a Lenovo Ultra Wide 29″ monitor with 2560×1080 resolution. Hooked up to the mini-DP connector of my Lenovo X1 Carbon laptop Fedora 20 autodetects it and runs it at full resolution without any problem. Intel drivers on linux rock. I look forward to getting a 4K screen for testing. 🙂

      • jzb 4:01 pm on January 17, 2014 Permalink | Reply

        2560×1080? That’s unusual. I thought the standard there was 2560×1440.

        I have a 2560×1440 that works just fine with my Lenovo ThinkPad (T530) as well. There really is a difference with the 4K, though. Soooo much real estate!

    • Wolfgang Rupprecht 3:37 am on September 12, 2014 Permalink | Reply

      I was struggling with getting the 39″ 4k Seiki running with an AMD/ATI Radeon HD 6450. The best I could do was 15 hz with a cut down dot-clock in a custom config file similar to the above. Turns out the problem was related to the graphics card and an older display controller version in the HD 6450 chip. Upgrading to a Radeon HD 7770 fixed the problem. I now get 30 hz refresh with an absolutely stock Xorg config. (The lag at 15hz was driving me crazy. Typing quickly meant that I’d be a few chars ahead of what the display was showing me.)

      Love the display size. The resolution is 113 dpi, which is just about right for me.

  • jzb 4:16 pm on January 12, 2014 Permalink | Reply
    Tags: , display, , nvidia,   

    4K and Fedora? 

    Decided that mere 2560×1440 resolution was just not cutting it on the desktop, so I ordered a 39″ Seiki 4K monitor on Amazon. Should be arriving tomorrow. Wondering if anyone else in Fedoraland has set one of these puppies up, and if so – what video card and drivers you’re using?

    I have a Dell dual-Xeon workstation with a nVidia Quadro NVS 295. A bit of googling suggests that it might have trouble driving something with a resolution higher than 2560×1600. Any experience with this video card and Fedora would also be welcome!

    • Gary Scarborough 12:47 am on January 14, 2014 Permalink | Reply

      I just built a system with a Haswell i5 4670 and a Gigabyte GA-Z87X-D3H motherboard. The integrated graphics card will do 4096×2160 @24Hz on the HDMI port according to the manual

      • jzb 4:43 am on January 14, 2014 Permalink | Reply

        Have you tested it with Fedora and a 4K monitor?

        • Moochiek 6:16 pm on April 15, 2017 Permalink | Reply

          The Quadro NVS 295 runs at 4K on my Samsung 28″ UHD monitor via DisplayPort, driver version 11/14/2016 (Windows 10 update version).

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