Hi everybody,
I just wanted to share my results on trying open source radeon drivers. I have an old one mobility radeon 4570 in my laptop, which currently lucks proprietary driver support. Few days ago I started whatching how counter strike source performs on ubuntu compared to windows. For this I used cs:s' video stress test from the menu. On windows average fps was 65. So this was the point I wanted to get to on linux.
First of all I tried stock ubuntu 13.10 configuration. The average fps was 23.55. Then I've decided to upgrade kernel up to 3.13 and install mesa git drivers(10.1) from oibaf's ppa. Result was 34 fps avg, better, but still bad. Later on I realized, that power state of dpm in kernel has a huge impact on performance, so I changed settings in config to "performace" (google how to do it, can't remember exactly what I did). New test -> 42 fps. It was getting better and better. But then I also realized that cs:s stress test shows weird fps during the test. What I mean, that it was showing 29-30 fps constantly like it was limited and sometimes 59-60. It was clear that it had something to do with vsync system wide. In home folder in .bashrc(hidden) file I added line "export vblank_mode=0", logged off and in and started a new test. The result was amazing.
New test showed 57 average fps in counter strike source benchmark, which was really close to what windows did. Considering my video card sucks, it was a great result. Hope this little story will help some of you guys.
P.S. The cs:s runs fine on open source drivers, however newer games like dota 2 still have major issues and now are unplayable, at least on legacy amd cards.
I just wanted to share my results on trying open source radeon drivers. I have an old one mobility radeon 4570 in my laptop, which currently lucks proprietary driver support. Few days ago I started whatching how counter strike source performs on ubuntu compared to windows. For this I used cs:s' video stress test from the menu. On windows average fps was 65. So this was the point I wanted to get to on linux.
First of all I tried stock ubuntu 13.10 configuration. The average fps was 23.55. Then I've decided to upgrade kernel up to 3.13 and install mesa git drivers(10.1) from oibaf's ppa. Result was 34 fps avg, better, but still bad. Later on I realized, that power state of dpm in kernel has a huge impact on performance, so I changed settings in config to "performace" (google how to do it, can't remember exactly what I did). New test -> 42 fps. It was getting better and better. But then I also realized that cs:s stress test shows weird fps during the test. What I mean, that it was showing 29-30 fps constantly like it was limited and sometimes 59-60. It was clear that it had something to do with vsync system wide. In home folder in .bashrc(hidden) file I added line "export vblank_mode=0", logged off and in and started a new test. The result was amazing.
New test showed 57 average fps in counter strike source benchmark, which was really close to what windows did. Considering my video card sucks, it was a great result. Hope this little story will help some of you guys.
P.S. The cs:s runs fine on open source drivers, however newer games like dota 2 still have major issues and now are unplayable, at least on legacy amd cards.
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