https://www.kogan.com/au/buy/kogan-28-ultra-hd-4k-led-monitor/ The price is good but would the monitor be any good? Apparently it's a PITA to get a 4K monitor going but this is a mostly solved problem (according to an LCA2015 lecture). Of course that means it probably won't work on Debian/Wheezy etc, but anyone who's happy to run Debian/Unstable, Rawhide, etc and get a new video card should be able to get this going. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/
On Tue, Apr 07, 2015 at 03:00:05AM +0000, Russell Coker wrote:
https://www.kogan.com/au/buy/kogan-28-ultra-hd-4k-led-monitor/
The price is good but would the monitor be any good?
dunno if that one's any good, but pccasegear have a 28" AOC U2868PQU 4K monitor for a similar price ($539 compared to the Kogan for $558. the kogan includes shipping so it works out about the same). http://www.pccasegear.com/index.php?main_page=product_info&products_id=28626... like the kogan, it can do 3840x2160 @ 30Hz on HDMI, or @60Hz on displayport. the AOC's been around long enough to get some fairly good reviews: http://www.pcmag.com/article2/0,2817,2476016,00.asp http://www.digitalversus.com/lcd-monitor/aoc-u2868pqu-p20684/test.html
Apparently it's a PITA to get a 4K monitor going but this is a mostly solved problem (according to an LCA2015 lecture). Of course that means it probably won't work on Debian/Wheezy etc, but anyone who's happy to run Debian/Unstable, Rawhide, etc and get a new video card should be able to get this going.
i'm tempted by both of these - i've been thinking of upgrading my monitor for a while. unfortunately, i'd also have to upgrade my KVM and the video cards in two machines to displayport-capable models. the kogan has 2 x displayport inputs so i could probably keep on using my current KVM for keyboard+mouse switching and switch the input on the monitor for video. the AOC has only one DP input...but the 30Hz HDMI input is probably adequate for my linux desktop (i'd only need DP @60Hz for the windows gaming machine) also, pccasegear has a physical store in Mulgrave where i can go to berate them if there's a problem. kogan is online only which can be a PITA for warranty issues (AOC includes 3 year warranty, Kogan has 1 year and wants $90 extra for 3 years...which is probably bullshit warranty-gouging as it should be covered by statutory warranty for that long anyway) craig -- craig sanders <cas@taz.net.au>
Just doing my duty as a good citizen and giving the usual warning with Kogan, all the equipment is imported and as such the repairs have to done through them and not the manufacturer as there is no manufacturers warranty. If the screen works then it is a great deal - but if there are any issues it can be a pain to deal with. -- Sent from my GNU/Linux-Libre box. Run free. http://www.gnu.org/distros/free-distros.html Come Visit Free Software Australia - http://freesoftware.org.au/ jabjabs@fastmail.com.au On Tue, Apr 7, 2015, at 01:26, Craig Sanders wrote:
On Tue, Apr 07, 2015 at 03:00:05AM +0000, Russell Coker wrote:
https://www.kogan.com/au/buy/kogan-28-ultra-hd-4k-led-monitor/
The price is good but would the monitor be any good?
dunno if that one's any good, but pccasegear have a 28" AOC U2868PQU 4K monitor for a similar price ($539 compared to the Kogan for $558. the kogan includes shipping so it works out about the same).
http://www.pccasegear.com/index.php?main_page=product_info&products_id=28626...
like the kogan, it can do 3840x2160 @ 30Hz on HDMI, or @60Hz on displayport.
the AOC's been around long enough to get some fairly good reviews:
http://www.pcmag.com/article2/0,2817,2476016,00.asp http://www.digitalversus.com/lcd-monitor/aoc-u2868pqu-p20684/test.html
Apparently it's a PITA to get a 4K monitor going but this is a mostly solved problem (according to an LCA2015 lecture). Of course that means it probably won't work on Debian/Wheezy etc, but anyone who's happy to run Debian/Unstable, Rawhide, etc and get a new video card should be able to get this going.
i'm tempted by both of these - i've been thinking of upgrading my monitor for a while. unfortunately, i'd also have to upgrade my KVM and the video cards in two machines to displayport-capable models.
the kogan has 2 x displayport inputs so i could probably keep on using my current KVM for keyboard+mouse switching and switch the input on the monitor for video. the AOC has only one DP input...but the 30Hz HDMI input is probably adequate for my linux desktop (i'd only need DP @60Hz for the windows gaming machine)
also, pccasegear has a physical store in Mulgrave where i can go to berate them if there's a problem. kogan is online only which can be a PITA for warranty issues (AOC includes 3 year warranty, Kogan has 1 year and wants $90 extra for 3 years...which is probably bullshit warranty-gouging as it should be covered by statutory warranty for that long anyway)
craig
-- craig sanders <cas@taz.net.au> _______________________________________________ luv-talk mailing list luv-talk@luv.asn.au http://lists.luv.asn.au/listinfo/luv-talk
On 7/04/2015 7:55 PM, Michael Verrenkamp wrote:
Just doing my duty as a good citizen and giving the usual warning with Kogan, all the equipment is imported and as such the repairs have to done through them and not the manufacturer as there is no manufacturers warranty.
If the screen works then it is a great deal - but if there are any issues it can be a pain to deal with.
Not to mention that with Kogan, there are no GST credits on goods under $1,000 so the AOC unit that Craig found will be cheaper if you can claim GST credits. Both might even use the exact same panel. A.
On 8/04/2015 8:06 AM, Andrew McGlashan wrote:
Not to mention that with Kogan, there are no GST credits on goods under $1,000 so the AOC unit that Craig found will be cheaper if you can claim GST credits. Both might even use the exact same panel.
The AOC unit looks like it comes with a much better stand too. I wouldn't buy the Kogan unit based on the comparison, let alone for other reasons. A.
On 7/04/2015 1:00 PM, Russell Coker wrote:
https://www.kogan.com/au/buy/kogan-28-ultra-hd-4k-led-monitor/
The price is good but would the monitor be any good?
Apparently it's a PITA to get a 4K monitor going but this is a mostly solved problem (according to an LCA2015 lecture). Of course that means it probably won't work on Debian/Wheezy etc, but anyone who's happy to run Debian/Unstable, Rawhide, etc and get a new video card should be able to get this going.
Good brightness, just reasonable viewing angles and this not so good: HDMI/DVI-D up to 3840 x 2160 @ 30Hz But this is okay with DisplayPort (not sure which version though) : DP up to 3840 x 2160 @ 60Hz (non-interlaced) I think you really want 60Hz ..... but perhaps that is a non-issue unless you are a gamer, just the same, there is always good reason when a monitor looks to be "good value", you get what you pay for. Maybe you can't even get 60Hz on HDMI/DVI-D, so maybe that's a non-issue with it being supported with DisplayPort. For viewing angles, I aim for 170+ for both horizontal and vertical, usually 178 for both. 170/160 isn't bad, but it isn't as good as 178/178. Cheers A.
On Tue, 7 Apr 2015 at 13:00 Russell Coker <russell@coker.com.au> wrote:
Apparently it's a PITA to get a 4K monitor going but this is a mostly solved problem (according to an LCA2015 lecture).
What are the software/hardware requirements for a 4K monitor? Is Debian/Jessie sufficient? Am guessing a video card that can display 2560x1600 may not necessarily be able to display at 4K. However to display at 2560x1600 you usually need a dual link DVI cable. Are there are special requirements like this for 4K?
On Wed, Apr 08, 2015 at 01:36:57AM +0000, Brian May wrote:
On Tue, 7 Apr 2015 at 13:00 Russell Coker <russell@coker.com.au> wrote:
Apparently it's a PITA to get a 4K monitor going but this is a mostly solved problem (according to an LCA2015 lecture).
What are the software/hardware requirements for a 4K monitor?
Is Debian/Jessie sufficient?
i suspect it has a lot more to do with the video driver (e.g. nouveau or radeon or proprietary nvidia etc) than it has to do with the distribution version. the distribution really only matters in that a newer distro comes with a newer default kernel - but, obviously, in most cases (assuming it compiles OK - and usually it will) there's nothing stopping you from running a newer kernel and/or video card driver on an older distro. in fact, for the nvidia-kernel-dkms driver, it's far more common to have problems compiling it against newer kernels than older ones. e.g. the versions of nvidia-kernel-dkms driver in sid and in experimental will compile without problems against linux 3.16 headers but need a tiny patch to compile against 3.19. of course, this is also complicated by the fact that sometimes a newer driver requires a newer version of X (e.g. nvidia-kernel-dkms and nvidia-glx tend to depend on the matching same version of xserver-xorg-video-nvidia)...so upgrading one may trigger a cascade of other dependant upgrades. (this is why i don't care much about the "version" of debian as I see that as being mostly irrelevant. what matters it the versions of the packages installed. saying "I'm running debian jessie" tells me nothing of much use...but saying "I have version X of package foo installed" is far more precise and far more useful)
Am guessing a video card that can display 2560x1600 may not necessarily be able to display at 4K.
However to display at 2560x1600 you usually need a dual link DVI cable. Are there are special requirements like this for 4K?
AFAIk, both DVI-D and HDMI can do "4K" resolutions (e.g. 3840x2160) but at a maximum of around 30H because of bandwidth constraints. for 3840x2160 @ 60Hz, you need DisplayPort compare the specs for displayport and dvi and hdmi for details: http://en.wikipedia.org/wiki/DisplayPort http://en.wikipedia.org/wiki/Digital_Visual_Interface http://en.wikipedia.org/wiki/Hdmi (ah, interesting. HDMI 1.4 can do 4096x2160 @ 24 Hz but HDMI 2.0 can do 4096x2160 @ 60 Hz....so just as with debian, the specific version is what's important :) Anyway, this matters for gaming (because a 30Hz refresh rate is effectively an limit of 30 fps - which is about the bare bottom limit of acceptability for games like 3d rpgs and first-person-shooters etc), but probably doesn't matter much at all for normal desktop use or watching videos. craig PS: according to http://en.wikipedia.org/wiki/4K_resolution both the AOC and Kogan monitors mentioned are not, strictly speaking, "4K" as that is 4096x2160. Instead they are UHDTV or 3840x2160, close enough to actual 4K *and* a convenient 16:9 aspect ratio. -- craig sanders <cas@taz.net.au> BOFH excuse #378: Operators killed by year 2000 bug bite.
On Tue, 7 Apr 2015 03:00:05 AM Russell Coker wrote:
https://www.kogan.com/au/buy/kogan-28-ultra-hd-4k-led-monitor/
The price is good but would the monitor be any good?
My mother in law bought one of those. So I get all the technical challenges of making it work but without the benefit of using it. Of course I also saved the $580 purchase price and my current ~2500*1400 monitor is pretty good. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/
participants (5)
-
Andrew McGlashan -
Brian May -
Craig Sanders -
Michael Verrenkamp -
Russell Coker