Originally posted by torham
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Open-Source ATI R600/700 3D Driver Almost Working
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Originally posted by torham View Post3D is great, but I would settle for some good 2D. Neither the fglrx driver or the radeonhd driver give usable performance in 2D yet. I have little hope for fglrx, even the catalyst driver for Windows is terrible. Try dragging a window around with show contents turned on, it's slower than it was a decade ago!
As a quick check, see if xvinfo finds textured video adapters.Test signature
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Originally posted by Louise View PostThat sounds like a pretty cool state to be in.
I guess anyone with GDB debugging experience could start hammer on those bugs without knowing anything about graphics?
So with GDB and specs you can get a general idea of what's going on in the mesa code by just tracing the code. The redbook demos are very simple.
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Sooo, pretty soon I'll have a 100% open source OS, including WiFi.
Coolness.
On fglrx: Seems to all work fine for me, except maximizing windows with compiz has a 1-2 second lag on it (so I turn compiz off, 'ray)
System:
Phenom II X3 720 BE
Biostar TA790GX AM2+ board
4GiB DD2-533
Integrated Radeon 3300
1440 x 900 monitor
3 x 500GiB HDD
Ubuntu 9.04 32bit.
Don't know why maximizing windows has such bad latency, everything else is pretty sharp.
bridgman: You're the man now, dog!
Regards,
J1M.
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Originally posted by torham View PostIt's a 4850, I'm using Debian's packages, tried both the radeon and the radeonhd drivers, with DRI on and both EXA and XAA.
xserver-xorg 1:7.4+3
xserver-xorg-video-radeon 1:6.12.2-2
xserver-xorg-video-radeonhd 1.2.5-1
linux-image-2.6.30-1-686 2.6.30-1
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Originally posted by RoboJ1M View PostSooo, pretty soon I'll have a 100% open source OS, including WiFi.
Coolness.
On fglrx: Seems to all work fine for me, except maximizing windows with compiz has a 1-2 second lag on it (so I turn compiz off, 'ray)
System:
Phenom II X3 720 BE
Biostar TA790GX AM2+ board
4GiB DD2-533
Integrated Radeon 3300
1440 x 900 monitor
3 x 500GiB HDD
Ubuntu 9.04 32bit.
Don't know why maximizing windows has such bad latency, everything else is pretty sharp.
bridgman: You're the man now, dog!
Regards,
J1M.
The funny thing is, I also get that lag when using KDE's KWin. when I enable the KWin plugin for performance tracking, a clear spike to the maximum of the scale is noticeable (I assume that cpu usage is being tracked).
It's a damn shame too, because this means that the fault lies with fglrx. I think that if this issue were to be fixed in Catalyst 9.6 that it certainly would make the wait for FOSS radeon(hd) 3D support for the R600/R700 cards a bit less painful.
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The delay resulted from an xserver patch being backed out to fix a corruption issue on Intel HW AFAIK - reapplying the patch seems to make the delay go away. My understanding is that this is an xserver issue not a driver issue; you hear similar complaints from people with different hardware and drivers as well.Last edited by bridgman; 06 July 2009, 10:16 AM.Test signature
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Originally posted by bridgman View PostMy understanding is that this is an xserver issue not a driver issue; you hear similar complaints from people with different hardware and drivers as well.
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The reports I have seen indicated a similar delay with the open source driver when running compositing. All the reports saying there was no delay with the open source drivers were on 6xx/7xx where the lack of 3D support prevents the use of GL-based compositing.
I have also seen a number of posts from Intel users discussing the tradeoffs associated with the patch; screen corruption vs delays.
Are you seeing something different, and if so which GPU are you using ?Test signature
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Originally posted by bridgman View PostThe reports I have seen indicated a similar delay with the open source driver when running compositing
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