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I thought I've read AMD guys basically saying "the closed source driver is aimed at gamers/graphics professionals, the open driver is for everyone else" but maybe they didn't. The original proposal...

Yes, Phoronix: Intel Graphics: Windows 7 & Windows 8 vs. Ubuntu 13.04 & Fedora 18. If you sum up and average the results on each test for "Ubuntu Fedora/13.04+git" and "Windows 8" then Windows 8...

I wouldn't completely discount it: if the open source driver gets close to performance competitive with the closed one, then Ubuntu will quickly drop the "install the closed drivers" post-install...

I would be very interested in seeing these tests redone on Haswell when it gets released next month... I don't think Phoronix has done any direct comparisons of discrete cards vs Intel since the...

Probably, the active adaptor is converting the protocol but the end device is still visible to query resolution etc. As far as I understand, DisplayPort monitors do have a pixel clock, but that clock...

Interesting, I would have thought that your config would require 3 pixel clocks since you have the two 1600x1200 on different outputs (DP & DVI).

Out of interest, what does xrandr --verbose say...

There was no comparison of start up times, the comparison was of archive unpack times. I doubt there is much embarrassment at performing significantly better.

Having said that, you are probably...

Actually the bug I was referring to was already reported on freedesktop.org by someone else. But it would make sense for ATI/AMD to respond to bugs on Launchpad, because that is where Ubuntu users...

I reported a serious bug (FireMV 2400, a current product afaik, still listed on amd.com - kernel does not boot, xorg does not work) and got no response. I gave up and sold the card. I have a FireMV...

Are the little hover-dots the test results on Fenrus as someone suggested above? If so, how come the plotted line is smooth? ie. hover on systemd-boot-kernel and you see one single performance jump...

I also think that you need to explain it better on the actual page.

I still don't understand how the delta is being calculated - the first plot shows systemd-boot-kernel, suggesting that the...

I'd still report it as a bug - there's not much point in supporting 12.04 and not 12.04.2, they're both LTS, it's the same version just with "major bug fixes".



Are the monitors and cables...

It sounds like a bug. I would report it as a bug at https://01.org/linuxgraphics/community/kernel and ask on the intel-gfx mailing list.

I've had problems in the past with mismatched kernel/xorg...

It looks like you are running some version of Ubuntu 12.04? As far as I can see, the latest Intel driver in 12.04.02LTS was released in Feb 2012, which is pretty old. So you might want to try...

For anyone else interested in this topic, I found an old post here that reports 3 monitors working ok with a DisplayPort+HDMI+DVI setup.

As far as I know, it's the pixel clock that has to match - that would be 148.5MHz above.

I read here that "3 monitors are support by Ivybridge only if 2 of those are identical and running at the same resolution (such as DP+DP, HDMI+HDMI etc)." I also read at Phoronix that "This means...

You are aware that the ATI Catalyst driver is closed source, and hence it is impossible for a distro to patch it? :confused: