memory size of a video card

[Brian Mury]

On Sat, 2006-08-19 at 08:42 -0500, Aaron Konstam wrote:
> On my machine ddcprobe and lspci -v do not give the same answere to this
> question. I don't know what that means or which is correct.

The three suggested options *all* give me different answers. I know for
a fact that my card is 128 MB. Here's what I get:

$ lspci -v

01:00.0 VGA compatible controller: ATI Technologies Inc RV280 [Radeon 9200] (rev 01) (prog-if 00 [VGA])
        Subsystem: PC Partner Limited Sapphire Radeon 9200
        Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 177
        Memory at d0000000 (32-bit, prefetchable) [size=128M]
        I/O ports at c000 [size=256]
        Memory at e5000000 (32-bit, non-prefetchable) [size=64K]
        [virtual] Expansion ROM at e4000000 [disabled] [size=128K]
        Capabilities: [58] AGP version 3.0
        Capabilities: [50] Power Management version 2

01:00.1 Display controller: ATI Technologies Inc RV280 [Radeon 9200] (Secondary) (rev 01)
        Subsystem: PC Partner Limited Sapphire Radeon 9200
        Flags: 66MHz, medium devsel
        Memory at d8000000 (32-bit, prefetchable) [disabled] [size=128M]
        Memory at e5010000 (32-bit, non-prefetchable) [disabled] [size=64K]
        Capabilities: [50] Power Management version 2



$ grep RAM /var/log/Xorg.0.log

(II) RADEON(0): Detected total video RAM=65536K, accessible=131072K (PCI BAR=131072K)
(--) RADEON(0): Mapped VideoRAM: 65536 kByte (128 bit DDR SDRAM)



$ ddcprobe

Videocard autoprobe results
Description:  ATI Technologies Inc. V280
Memory (MB):  16