Why Does 14.04 Hate AMD?

[Charles T. Bell]

On 08/15/2014 03:53 AM, Ralf Mardorf wrote:
> On Fri, 2014-08-15 at 09:51 +0200, Ralf Mardorf wrote:
>> Several Linux PREEMPT RT users with AMD CPUs experienced issues,
>> independent of the used disto/WM/DE. The only rt patched kernel I can
>> use > 3.8.x is 3.10.47-rt50. Linux-rt <= 3.8.x are ok, but > 3.8 don't
>> work on my machine [1], excepted of the 3.10.47 with the 50th patch.
>> There were no issues with vanilla kernels <= 3.16.
>>
>> To put it in a nutshell, did you test older kernels? Did you disable
>> options in GRUB's kernel line or build kernels with new features
>> disabled?
>>
>>> It seems that AMD64 is a red-headed stepchild for some
>>> reason.
>>
>> The kernel developer might not have all the AMD hardware they need for
>> testing and even if they would have, they perhaps don't have enough
>> time. It's up to the community to help debugging kernels. Unfortunately
>> I couldn't help, since not only knowledge is needed, but also hardware.
>> When the machine logs and there are no useful log files, no debugging
>                   locks ;)
>> information, connecting another computer by parallel port and things
>> like this are needed, to give the developer the information they need.
>>
>> Troubleshooting: Did you test another DE, or better a lightweight WM
>> that is known to be stable?
>>
>> [1]
>> # grep "model name" /proc/cpuinfo 
>> model name	: AMD Athlon(tm) X2 Dual Core Processor BE-2350
>> model name	: AMD Athlon(tm) X2 Dual Core Processor BE-2350
>>
>>
> 
> 
> 

At first, I was running 14.04 with the non-proprietary drivers and
thought to try the proprietary video drivers which made no difference. I
have been using the same Mobo and CPU for several years and a number of
different versions of Kubuntu and have had few problems.
The trouble all started when I "upgraded" to 14.04 only!  Other than the
video drivers I have not added or changed anything.

Tom
-- 
The thing about quotes on the internet is you
cannot confirm their validity. ~Abraham Lincoln
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