Fedora 23 and 4K monitors?

[Justin Moore]

Does anyone have Fedora 23 working with a 4K monitor? Last week I got an
Asus PB287Q monitor, but got bit by the "hardware loses signal when monitor
goes into sleep" issue. I'm returning that monitor and would like to get
another one, but am hoping to find a good success story. I'm running Fedora
23 with a GeForce 750 Ti card using the NVidia drivers. Does anyone have a
working 4K setup with this or similar hardware?

Thanks,
-jdm

[Tom Horsley]

On Wed, 23 Dec 2015 18:24:15 -0500
Justin Moore wrote:
> I'm running Fedora
> 23 with a GeForce 750 Ti card using the NVidia drivers.

The very card I'm using at work with my Samsung U28D590 monitor
and the display port output. (I never got the cheesy audio
connection on the Samsung to work, but I don't really need it
with speakers plugged into the computer directly).

I keep hoping the nouveau drivers will work out of the box
with the nvidia card someday, but I have to use the nvidia
binary drivers for now to get anything other than a black
screen.

Fairly recently the rpmfusion.org drivers were updated, and
I am able to use the rpmfusion drivers to get video these
days.

[Justin Moore]

> > I'm running Fedora
> > 23 with a GeForce 750 Ti card using the NVidia drivers.
>
> The very card I'm using at work with my Samsung U28D590 monitor
> and the display port output. (I never got the cheesy audio
> connection on the Samsung to work, but I don't really need it
> with speakers plugged into the computer directly).

Thanks. Which version of the nvidia drivers are you using? Do you ever have
problems where the monitor loses the displayport signal and you have to
power cycle the monitor and/or computer? It looks like the U28E590 is the
newer version of this monitor; is anyone at your work using that monitor,
or is it all the 'D' revision?

I've been able to get my monitor working over HDMI, but that only does 4K
at 30Hz, which looks pretty bad when trying to watch video. It'd be nice to
get a better refresh rate.

Thanks,
-jdm
> I keep hoping the nouveau drivers will work out of the box
> with the nvidia card someday, but I have to use the nvidia
> binary drivers for now to get anything other than a black
> screen.
>
> Fairly recently the rpmfusion.org drivers were updated, and
> I am able to use the rpmfusion drivers to get video these
> days.
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[Tom Horsley]

On Thu, 24 Dec 2015 09:25:25 -0500
Justin Moore wrote:
> Thanks. Which version of the nvidia drivers are you using? Do you ever have
> problems where the monitor loses the displayport signal and you have to
> power cycle the monitor and/or computer? It looks like the U28E590 is the
> newer version of this monitor; is anyone at your work using that monitor,
> or is it all the 'D' revision?

There is a newer nvidia driver, but I'm using the akmod-nvidia-340xx
version from rpmfusion because that was the first version that appeared
on rpmfusion. The video is pretty much flawless, I've never seen any
problems that needed power cycling.

I think there is only one other 4K monitor around that was purchased
at about the same time, so I suspect it is the same D version.

[Rikke D. Giles]

On 12/23/2015 03:24:15 PM, Justin Moore wrote:
> Does anyone have Fedora 23 working with a 4K monitor?

Yes, I just recently set up two systems with 4k monitors.  They are using Viewsonic VX2475 series monitors.
> I'm running Fedora 23 with a GeForce 750 Ti card using the NVidia drivers. Does anyone
> have a working 4K setup with this or similar hardware?

NVidia GeForce GTX980s are the video cards.  I used the NVidia drivers.  Everything looks and works great.  Hope you get a working system soon!

Rikke

[Justin Moore]

> > Does anyone have Fedora 23 working with a 4K monitor?
>
> Yes, I just recently set up two systems with 4k monitors.  They are using
> Viewsonic VX2475 series monitors.
> > I'm running Fedora 23 with a GeForce 750 Ti card using the NVidia
>
> drivers. Does anyone
> > have a working 4K setup with this or similar hardware?
>
> NVidia GeForce GTX980s are the video cards.  I used the NVidia drivers.
> Everything looks and works great.  Hope you get a working system soon!

Thanks. Are the monitors using the DisplayPort and running at 60Hz? How
many monitors and video cards does each system have?

Thanks!
-jdm
> Rikke
>
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[Rikke D. Giles]

On 12/24/2015 06:32:07 AM, Justin Moore wrote:
> Thanks. Are the monitors using the DisplayPort and running at 60Hz?
> How many monitors and video cards does each system have?

I used the MHL ports for the Viewsonic VX2475's.  They are at 67.5Khz H and 30 Hz V, pixel clock is 297.1 Mhz, according to the monitor's menu.  There is only one monitor and card per system.  However, one of the systems occasionally gets another monitor, a non-4K, added.  It does fine.

Rikke