Bug 5475

Summary:	driver/xf86-video-ati doesn't detect the videoRAM correctly
Product:	xorg	Reporter:	aj2r <aj2r>
Component:	Driver/Radeon	Assignee:	Xorg Project Team <xorg-team>
Status:	RESOLVED DUPLICATE	QA Contact:
Severity:	major
Priority:	highest	CC:	alexdeucher
Version:	7.0.0
Hardware:	x86 (IA32)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description aj2r 2006-01-02 07:58:05 UTC

videoRAM is 262144 kByte

......
(--) RADEON(0): Chipset: "ATI Radeon Mobility X600 (M24) 3150 (PCIE)" (ChipID =
0x3150)
(--) RADEON(0): Linear framebuffer at 0xc0000000
(--) RADEON(0): VideoRAM: 131072 kByte (128 bit DDR SDRAM)
.........

Comment 1 aj2r 2006-01-02 08:12:23 UTC

01:00.0 VGA compatible controller: ATI Technologies Inc M24 1P [Radeon Mobility
X600] (prog-if 00 [VGA])
        Subsystem: Hewlett-Packard Company Unknown device 3082
        Flags: bus master, fast devsel, latency 0, IRQ 16
        Memory at c0000000 (32-bit, prefetchable) [size=256M]
        I/O ports at 4000 [size=256]
        Memory at b0100000 (32-bit, non-prefetchable) [size=64K]
        [virtual] Expansion ROM at b0120000 [disabled] [size=128K]
        Capabilities: [50] Power Management version 2
        Capabilities: [58] Express Endpoint IRQ 0
        Capabilities: [80] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable-
        Capabilities: [100] Advanced Error Reporting

Comment 2 Alex Deucher 2006-01-02 18:57:53 UTC

This isn't actually a bug per se, only 128 MB of video ram are accessable by the
host CPU, so the current radeon driver clips all boards to 128 MB at them
moment.  We should probably report the actual amount detected and them tell the
user that it has been clipped or better yet use the extended ram for textures
(see bug 5353).

*** This bug has been marked as a duplicate of 5353 ***

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