[Nouveau] GeForce 6100 (NV4E) & nouveau regression in 3.12

Rafał Miłecki zajec5 at gmail.com
Mon Feb 10 07:12:27 PST 2014


2014-02-09 23:12 GMT+01:00 Ilia Mirkin <imirkin at alum.mit.edu>:
> On Sun, Feb 9, 2014 at 5:08 PM, Rafał Miłecki <zajec5 at gmail.com> wrote:
>> Last week I've switched from my old & good 3.4.63 to 3.14-rc1 and
>> noticed nasty display corruptions when using nouveau. It seems that
>> changing parts of the screen are appearing for a fraction of second in
>> random places. I've recorded this behavior:
>> http://www.youtube.com/watch?v=IEq7JzGVzj0
>>
>> My hardware is some old motherboard with
>> 00:05.0 VGA compatible controller [0300]: NVIDIA Corporation C51G
>> [GeForce 6100] [10de:0242] (rev a2)
>> integrated. Since my CPU is ancient AMD Sempron(tm) Processor 2800+ it
>> took me few days to track this issue.
>>
>> There goes some summary of various kernels:
>>
>> 1) 3.4.63
>> No display problems. Works great.
>>
>> 2) commit 928c2f0c006bf7f381f58af2b2786d2a858ae311
>> drm/fb-helper: don't sleep for screen unblank when an oops is in progress
>> Scrollbars have a pink line. I didn't track which commit introduced
>> this pink corruption. No other problems.
>>
>> 3) commit c21eb21cb50d58e7cbdcb8b9e7ff68b85cfa5095
>> Revert "drm: mark context support as a legacy subsystem"
>> This fixes pink lines on scrollbars and introduces this nasty display
>> corruption. It's one commit after previous one.
>> It means it's the first bad commit for these nasty corruptions recoded
>> and uploaded to YouTube.
>>
>> 4) 3.14-rc1
>> No changes since c21eb21cb50d58e7cbdcb8b9e7ff68b85cfa5095. No pink
>> lines, but display corruptions happening.
>
> Can you boot with nouveau.config=NvMSI=0 ? If that helps, there are
> some patches on the nouveau/dri-devel lists (search for "nv4c") that
> may help you.

Unfortunately this config parameter doesn't help :(

-- 
Rafał


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