Bug 36701

Summary: [R600G:KMS:JUNIPER] VRAM limit seems quite low for a 1GiB Card
Product: xorg Reporter: Daniel Hill <daniel>
Component: Driver/RadeonAssignee: xf86-video-ati maintainers <xorg-driver-ati>
Status: RESOLVED NOTABUG QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium    
Version: git   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
dmesg | grep drm > dmesg-drm.log none

Description Daniel Hill 2011-04-29 20:46:24 UTC
Is this suppose to be low as ~200MiB. on my other computer, running radeon, it's ~500MiB with a 512MiB (RV710)
Comment 1 Daniel Hill 2011-04-29 20:47:37 UTC
Created attachment 46179 [details]
dmesg | grep drm > dmesg-drm.log
Comment 2 Michel Dänzer 2011-05-02 02:27:37 UTC
What 'VRAM limit' are you referring to? The attachment shows the whole 1G of VRAM being used:

[drm] radeon: 1024M of VRAM memory ready
Comment 3 Daniel Hill 2011-05-02 20:07:32 UTC
sorry I was pretty sure I attached the Xorg.0.log will attach it soon
Comment 4 Michel Dänzer 2011-05-03 01:47:59 UTC
I assume you're referring to the line

(II) RADEON(0): VRAM usage limit set to 111700K

then. This just means that the X driver doesn't require more than this amount of VRAM (limited to the maximum amount of VRAM that can be accessed by the CPU) in a single command stream submitted to the kernel. This doesn't prevent all of VRAM from being used.

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