Bug#757604: Connectors for additional monitors not recognized in new laptop

[Michel Dänzer]

On 10.08.2014 03:19, Carlos Kosloff wrote:
> 
> Graphics:  Card: Advanced Micro Devices [AMD/ATI] Mullins [Radeon APU
> A4-6000 with R2 Graphics]
>            Display Server: X.Org 1.16.0 drivers: fbdev,ati,radeon
> (unloaded: vesa)
>            Resolution: 1600x900 at 0.00hz
>            GLX Renderer: Gallium 0.4 on llvmpipe (LLVM 3.4, 128 bits)
> GLX Version: 3.0 Mesa 10.2.4
> 
> Machine:   System: TOSHIBA product: Satellite C75D-B v: PSCLEU-003002
>            Mobo: TOSHIBA model: Portable PC v: MP Bios: Insyde v: 1.10
> date: 04/30/2014
> 
> CPU:       Quad core AMD A6-6310 APU with AMD Radeon R4 Graphics (-MCP-)
> cache: 8192 KB
>            Clock Speeds: 1: 1000 MHz 2: 1800 MHz 3: 1000 MHz 4: 1000 MHz
> 
> RAM:    8 Gb 1333Ghtz
> 
> Branch : jessie/sid, sources set to "testing"
> 
> Kernel: linux-image-3.14-2-amd64
> 
> Problem: this laptop does not recognize additional monitors, not VGA nor
> HDMI.
> I have been told that the kernel I am using is not suitable for this GPU
> and that I need kernel 3.16.

Mullins support already went into 3.15 AFAICT, but it definitely wasn't
in 3.14 yet.

> In Debian this kernel is only in experimental, an rc marked as buggy,
> however, this kernel has gone stable and siduction derivative has it.
> I am not sure if loading this kernel will solve problem, or if problem
> is in drivers.

Can you try a 3.15 or 3.16 kernel? The ati/radeon Xorg driver can't work
without the corresponding kernel support.


-- 
Earthling Michel Dänzer            |                  http://www.amd.com
Libre software enthusiast          |                Mesa and X developer