I've tried changing video output driver from xv to something like xv (0 - ati) which made no difference.
Checking Xorg.0.log I can see this
[greg@spacebar log]$ cat Xorg.0.log | grep -i accelerat
[ 19.201] (II) RADEON(0): Render acceleration enabled for R300/R400/R500 type cards.
[ 19.201] (II) Composite (RENDER acceleration)
[ 19.208] (II) RADEON(0): Acceleration enabled
and in dmesg
[greg@spacebar log]$ dmesg | grep -i radeon
[ 0.635401] [drm] radeon defaulting to kernel modesetting.
[ 0.635406] [drm] radeon kernel modesetting enabled.
[ 0.635541] fb: conflicting fb hw usage radeondrmfb vs VESA VGA - removing generic driver
[ 0.636939] radeon 0000:02:00.0: VRAM: 128M 0x00000000F0000000 - 0x00000000F7FFFFFF (128M used)
[ 0.636942] radeon 0000:02:00.0: GTT: 512M 0x00000000D0000000 - 0x00000000EFFFFFFF
[ 0.636987] radeon 0000:02:00.0: irq 42 for MSI/MSI-X
[ 0.636998] radeon 0000:02:00.0: radeon: using MSI.
[ 0.637020] [drm] radeon: irq initialized.
[ 0.637517] [drm] radeon: 128M of VRAM memory ready
[ 0.637519] [drm] radeon: 512M of GTT memory ready.
[ 0.639619] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
[ 0.640758] radeon 0000:02:00.0: WB enabled
[ 0.640762] radeon 0000:02:00.0: fence driver on ring 0 use gpu addr 0x00000000d0000000 and cpu addr 0xffff88010fca4000
[ 0.641626] [drm] radeon: ring at 0x00000000D0001000
[ 0.642048] [drm] Radeon Display Connectors
[ 0.863592] fb0: radeondrmfb frame buffer device
[ 0.863599] [drm] Initialized radeon 2.18.0 20080528 for 0000:02:00.0 on minor 0
so I'd say acceleration is at least turned on. I've been thinking about replacing this with the cheapest eyefinity card I can find for a while so I can get 3 displays, but with the larger screen I was feeling like that was no longer needed. Ironically it's looking like I might need to anyway. (I'm looking at the displayport radeon HD 5450's as I can't find anything cheaper)
]]>Edit: You should also check out dmesg and Xorg.0.log for any anomalities.
]]>I will admit, I'm running a 24" (1920x1200) and a 20" (1680x1050) monitor off this card and I'm guessing I'm just overloading it now. Before it had the 20" plus a 17" (1280x1024) and was going ok.
Running xf86-video-ati. What do you think? Is this card just outta juice or is there something I can do to get enough performance out of it? Mplayer settings maybe? (Using SMPlayer)
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