On Thu, 16 Apr 2015 14:46:46 +0800 Bret Busby <bret.bu...@gmail.com> wrote:
> On 14/04/2015, Bret Busby <bret.bu...@gmail.com> wrote: > > > <snip> > > > > > In the Debian 7 installation on the Acer V3-772G, for > > System -> Settings -> Details -> Overview, it has > > > > " > > Processor: Intel Core i&-4702MQ CPU @ 2.20GHz x 8 > > Graphics: Gallium 0.4 on llvmpipe (LLVM 0x209) > > " > > > > and, for > > > > System -> Settings -> Details -> Graphics, it has > > > > " > > Driver: Gallium 0.4 on llvmpipe (LLVM 0x209) > > Experience: Fallback > > " > > > > I note that, having just installed (and presently updating) Ubuntu > 14.04LTS, on the Acer E5-521-238Q, the same graphics drive shows as > being used, as for Debian 7 on the Acer V3772G; > > from System Settings -> Hardware -> Overview, I have > > " > Processor: AMD E2-6110 APU with AMD Radeon R2 Graphics x4 > Graphics: Gallium 0.4 on llvmpipe (LLVM 3.4, 128 bits) > " > > and the external monitor does not work with either Debian 7 or Ubuntu > 14.04LTS. > > So, whilst the Ubuntu web site shows the CPU to be certified as > compatible - at > http://www.ubuntu.com/certification/catalog/component/dmi/4365/dmi%3AAMDE2-6110APUwithAMDRadeonR2Graphics/ > > it appears to me, that both Debian 7 and Ubuntu 14.04 LTS, do not > really have an adequate driver for that CPU ("Processor: AMD E2-6110 > APU with AMD Radeon R2 Graphics x4), as they both can not drive an > external monitor through it. I *seriously* doubt that the CPU has anything to do with it. It will either run x86 code (ie Debian/Ubuntu) or it won't. This is more likely a problem with the GPU driver, or the way X is set up. What output do you get from "xrandr" when you have booted the machine with the monitor connected? Petter -- "I'm ionized" "Are you sure?" "I'm positive."
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