VRAM Showing less memory than the system has

Support Graphics & Display
1

I’m new to linux and i have a laptop with AMD A8-7410 APU with AMD Radeon R5 Graphics. If i check my vram memory size in Windows 10 ( I have a dual boot with manjaro ) is 1024M which can be extended to 2048M in BIOS . If i check my vram size in manjaro by running lspci -vv its showing me the result

00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Mullins [Radeon R4/R5 Graphics] (rev 45) (prog-if 00 [VGA controller])
        Subsystem: Hewlett-Packard Company Device 80cb
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 43
        Region 0: Memory at e0000000 (64-bit, prefetchable) [size=256M]
        Region 2: Memory at f0000000 (64-bit, prefetchable) [size=8M]
        Region 4: I/O ports at 3000 [size=256]
        Region 5: Memory at f0d00000 (32-bit, non-prefetchable) [size=256K]
        Expansion ROM at 000c0000 [disabled] [size=128K]
        Capabilities: <access denied>
        Kernel driver in use: radeon
        Kernel modules: radeon, amdgpu

Its showing me that i just have 256M of vram.
IDK what to do.

2

Hello @itz_me_shervin :wink:

What says this command?

glxinfo | egrep -i 'device|memory:'
1 Like
3

That’s not your VRAM. This explains what those regions are:

https://askubuntu.com/questions/1000398/what-do-prefetchable-and-non-prefetchable-memory-in-results-of-lspci-vnn-mean/1000405#1000405

1 Like
4 
 Device: AMD KABINI (DRM 2.50.0, 5.10.56-1-MANJARO, LLVM 12.0.1) (0x9851)
    Video memory: 1024MB
    Unified memory: no
    Dedicated video memory: 1024 MB
    Total available memory: 3067 MB
    Currently available dedicated video memory: 0 MB

Its showing me this. So , now manjaro have 1024M of VRAM ?

5

Sure, all the time… here my hardware:

I have also 256M RAM:

01:00.0 VGA compatible controller: NVIDIA Corporation GP107 [GeForce GTX 1050 Ti] (rev a1) (prog-if 00 [VGA controller])
	Subsystem: ZOTAC International (MCO) Ltd. Device 1454
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 29
	Region 0: Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
	Region 1: Memory at c0000000 (64-bit, prefetchable) [size=256M]
	Region 3: Memory at d0000000 (64-bit, prefetchable) [size=32M]
	Region 5: I/O ports at e000 [size=128]
	Expansion ROM at fe000000 [virtual] [disabled] [size=512K]
	Capabilities: <access denied>
	Kernel driver in use: nvidia

Oh wait no, i have more:

Memory info (GL_NVX_gpu_memory_info):
    Dedicated video memory: 4096 MB
    Total available memory: 4096 MB
    Currently available dedicated video memory: 3778 MB

:laughing:

6

Oh so 256M is not my VRAM Memory right ?

7

No, this is:

1GB VRAM and 2GB shared with your system RAM.

1 Like
8

Thanks for helping out guys you guys are amazing :wink: .

9

This topic was automatically closed 15 days after the last reply. New replies are no longer allowed.