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[Bug 1479136] Re: [ubuntu 14.04.2] Artefacts in radeon driver on kernel 3.16 and upwards
Mrerexx, I can confirm this... I have the EXACT same laptop model (I rarely use nowadays) and just checked it.
Indeed this model still has the same problems with the newer kernels.
Since this is an upstream bug, please follow this link [ https://bugzilla.kernel.org/show_bug.cgi?id=83461 ] and mention it there.
I don't think many people (or developers) have hardware vulnerable to this bug so you might be asked to test some patches.
In a few days I hope to be able to add some information there myself.
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[ubuntu 14.04.2] Artefacts in radeon driver on kernel 3.16 and upwards
Status in linux package in Ubuntu:
This is what I get if I run a kernel newer than 3.13: https://www.youtube.com/watch?v=nx2-Fvihzxg
sorry for the link, I just don't know how to describe these artefacts verbally.
(a storm of small horizontal moving blips from right to left ??)
Those artefacts appear as soon as new kernel is selected in GRUB, and
remain during the whole session.
The lastest kernel (from the main repository that is) working without
artifacts is v220.127.116.11. All later kernels have artifacts. All later
kernels also are either "-utopic" or "-vivid" instead of "-trusty",
but I do not know if it is related.
GPU: Mobility Radeon HD 3200 (RS780M)
System: Ubuntu Mate 14.04.2 32-bit
Kernels tested: 18.104.22.168 (and earlier) , 22.214.171.124 , 126.96.36.199
Only 188.8.131.52 (and earlier) are without problems.
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