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Am Montag, 02.02.2015 um 18:57 |
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schrieb Sid S <r030t1@×××××.com>: |
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|
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> I don't think anybody is capable of giving you a firm answer because |
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> nobody has done it. You would probably be the first. In fact, when |
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> double-checking the info I had found earlier, some of the searches |
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> gave your message in the first 3-4 results. Hi Mom! |
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> |
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> Cards which support UHD should support 4k. You can try to use the |
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> closed driver benchmarks from Phoronix to guesstimate if your intended |
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> usage will be passable |
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> (http://www.phoronix.com/scan.php?page=article&item=ubuntu_1404_4kgpus). |
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> The R7 250E may have issues running a composited desktop. I would not |
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> expect the R9 280X to have issues. Most complaints seem to be from |
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> people with older cards, but then again, those reporting success all |
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> seem to be using closed drivers. |
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> |
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> I rated success likely enough that I was considering a Dell P2415Q w/ |
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> the Intel HD4600 (and replacing my motherboard) or an R9 290X. Make |
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> sure you have an exit strategy, though. |
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|
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Today I exchanged my Radeon HD4550 video card in my gentoo workstation |
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with a R7 250E. It seems that it works with xfce and composite desktop |
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without problems. The only problem that I now have is the tearing, that |
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occurs when I watch HD videos. The EXAVSync parameter doesn't work with |
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glamor acceleration. When I switch to EXA acceleration I have no xvideo |
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extension and cannot watch videos at all. Maybe I will find a solution |
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for that, but I'm not sure. |
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|
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At the moment I use my old monitor with 1920x1200@60Hz. In a few |
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hours I will get the new monitor. Then I will try to use it with |
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4096x2160@50Hz. Because all my videos are using PAL standard I have a |
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very little hope that with 50Hz the tearing will disappear. But I |
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fear that the tearing will even gets worse because of the higher |
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resolution. |
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The R9 is for my other machine, which I use for graphics work (RAW |
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conversion etc.) This is a dual boot (gentoo and windows 7) but it |
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mostly run under windows. When the R9 runs much better under gentoo than |
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the R7, I maybe will buy also a R9 for my gentoo workstation. But then I |
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must replace my passive cooled power supply unit too. And I really don't |
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like noisy computers. That's the main reason for the R7. It's cooled |
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passive and it works without problems with my silent 450W power supply |
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unit. The other reason is that I have to spent about 400€ for the R9 |
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and a new power supply unit. |
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P.S.: Much thanks for the hint about the composite desktop. I |
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deactivated compositing and the tearing is gone. :-) As it costs only a |
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click in the xfce settings I can switch it temporarily off without |
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problems when I wanna watch videos. |
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|
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Regards |
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wabe |
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