Bug 24484 - Wrong VRAM size for radeon X1950 XTX
Summary: Wrong VRAM size for radeon X1950 XTX
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Radeon (show other bugs)
Version: DRI git
Hardware: Other All
: medium normal
Assignee: Default DRI bug account
QA Contact:
Depends on:
Reported: 2009-10-12 13:29 UTC by ojab
Modified: 2009-10-12 13:35 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

dmesg log (2.47 KB, patch)
2009-10-12 13:32 UTC, ojab
no flags Details | Splinter Review

Description ojab 2009-10-12 13:29:02 UTC
kernel-2.6-git (rev. d93a8f829fe1d2f3002f2c6ddb553d12db420412, latest on the moment).

Should be 512mb, but detected as 256mb.
Comment 1 ojab 2009-10-12 13:32:10 UTC
Created attachment 30304 [details] [review]
dmesg log
Comment 2 Alex Deucher 2009-10-12 13:34:24 UTC
The drier currently limits vram to 256 MB regardless of how much is on the card due to limitations in the max pci bar size.  The most vram the CPU can map is 256 MB; the rest is only accessible via the GPU.
Comment 3 Alex Deucher 2009-10-12 13:35:57 UTC
Proper support for more the 256 MB of vram will come eventually.

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