nvidia 304 and fc23: black screens after updating today

[John Pilkington]

On 12/10/16 11:32, John Pilkington wrote:
> On 12/10/16 00:05, John Pilkington wrote:
>> On 11/10/16 21:21, Nicolas Chauvet wrote:
>>> 2016-10-11 1:00 GMT+02:00 John Pilkington <J.Pilk at tesco.net>:
>>>> This is the same system that had nvidia problems during its fc22 > fc23
>>>> upgrade.  That was reported here and solved on 30 June.  Since then
>>>> it has
>>>> been working well, but after installing the new packages today I get
>>>> black
>>>> screens with kernels 4.7.3, 4.7.5 and 4.7.6
>>>>
>>>> 'dnf downgrade xorg-x11-drv-nvidia-304xx --allowerasing' apparently
>>>> completed but then akmods-shutdown errored.  After re-upgrading,
>>>> akmods-shutdown completed, and the nvidia flash screen flashes, but
>>>> then all
>>>> goes black again, for all installed kernels.  I'm using tty2.
>>>
>>> We have seen such error and have moved the update back into
>>> updates-testing for now.
>>> Best is to debug using ssh remotly we'd like to have a full
>>> nvidia-bug-report.sh to send to nvidia support forum
>>>
>>> Hopefully there will be a new updated package from nvidia, we will
>>> need testers at that time..
>>>
>>> Thx for your report.
>>>
>>>
>>>
>> I have been trying to get nouveau working, so far without success.  But
>> I've also looked at the builds from scrpms, in which dnf reports
>> conflicts between the libvdpau_nvidia.so and .so.1 files from the 304
>> and 340 lib packages, which are both required.  ISTR something similar
>> in atrpms long ago.
>>
> I have just posted to the kde fedora list: dmesg shows plasmashell
> segfault in nouveau_dri.so
>

I have a working fc23/kde/plasma desktop once more. 
xorg-x11-drv-nvidia-304xx still doesn't build the kmod, even with 
'akmods --force', and I had no luck with both that and nouveau removed. 
But after ensuring that 'rpm -qa | grep nvidia' returned nothing, 'dnf 
install xorg-x11-drv-nouveau' did the trick.  I'll try living without 
hardware acceleration for the time being...

John P




John P