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Old 02-01-2014, 11:59 AM   #1
moisespedro
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Video card memory not showing everything?


Hi, I have a radeon 6670 card (this one) and when I went to see its information on my system it only shows 256MB of memory. I am running the default open source driver.

Code:
root@slack:~# lspci | grep -E "VGA|3D"                                                                                                 
01:00.0 VGA compatible controller: AMD/ATI [Advanced Micro Devices, Inc.] Turks XT [Radeon HD 6670]
root@slack:~# lspci -v -s 01:00.0 
01:00.0 VGA compatible controller: AMD/ATI [Advanced Micro Devices, Inc.] Turks XT [Radeon HD 6670] (prog-if 00 [VGA controller])
	Subsystem: XFX Pine Group Inc. Device 3181
	Flags: bus master, fast devsel, latency 0, IRQ 43
	Memory at d0000000 (64-bit, prefetchable) [size=256M]
	Memory at febc0000 (64-bit, non-prefetchable) [size=128K]
	I/O ports at d000 [size=256]
	Expansion ROM at feba0000 [disabled] [size=128K]
	Capabilities: [50] Power Management version 3
	Capabilities: [58] Express Legacy Endpoint, MSI 00
	Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
	Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
	Capabilities: [150] Advanced Error Reporting
	Kernel driver in use: radeon
	Kernel modules: radeon
 
Old 02-01-2014, 02:33 PM   #2
ReaperX7
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It usually shows up in glxinfo.
 
Old 02-01-2014, 03:39 PM   #3
wildwizard
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From what I understand that memory figure is the addressable memory from the PCI bus's viewpoint and is used for copying textures from the system memory or disk to the card for rendering.
 
Old 02-01-2014, 03:51 PM   #4
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I get the same result (showing 256MB) on my NVIDIA card with 2GB of RAM. As wildwizard says I think that's the size of the "window" used to transfer data.
 
Old 02-02-2014, 12:55 PM   #5
moisespedro
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glxinfo didn't show it but I got your explanation, so I guess it is fine.
 
  


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