<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif">Even with newer cards the 4.18 changes to memcopy for closed blob drivers are making nvidia drivers pretty shitty.<br></div><div class="gmail_default" style="font-family:verdana,sans-serif"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif">390.77 drivers work with 4.18 kernel ; but I am getting (recoverable)oops with them.</div><div class="gmail_default" style="font-family:verdana,sans-serif"></div><div class="gmail_default" style="font-family:verdana,sans-serif"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif">I was using the short lived branch 396.51 - on 4.15-4.17 trouble-free, but the 390.77 is the only branch that includes patches for the newer memcopy changes in upstream at the moment.</div><div class="gmail_default" style="font-family:verdana,sans-serif"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif">As for your older cards ; nouveau + gallium is pretty decent these days; to the point they often are better than the nvidia drivers. I would suggest putting the effort in to switch to obiaf ppa + nouveau for these. <br></div><div class="gmail_default" style="font-family:verdana,sans-serif"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif">-Joel<br></div><div class="gmail_default" style="font-family:verdana,sans-serif"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif"><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On 15 August 2018 at 17:06, Stephen Worthington <span dir="ltr"><<a href="mailto:stephen_agent@jsw.gen.nz" target="_blank">stephen_agent@jsw.gen.nz</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I just got the notification today that I can upgrade my MythTV box<br>
from Ubuntu 16.04 to 18.04.1. But in researching and testing the<br>
upgrade, I have come across a serious problem for boxes that are using<br>
old Nvidia drivers, like my mother's. Her box needs the Nvidia 304<br>
series drivers, which are no longer supported by Nvidia:<br>
<br>
<a href="https://nvidia.custhelp.com/app/answers/detail/a_id/3142/~/support-timeframes-for-unix-legacy-gpu-releases" rel="noreferrer" target="_blank">https://nvidia.custhelp.com/<wbr>app/answers/detail/a_id/3142/~<wbr>/support-timeframes-for-unix-<wbr>legacy-gpu-releases</a><br>
<br>
As a result of the support having been dropped, the 304 drivers<br>
apparently do not compile against the 4.15 series kernels used in<br>
18.04.1, and as a result of that, Ubuntu has dropped the Nvidia 304<br>
driver packages. There are web pages that tell you how to install the<br>
304 drivers by downloading them from Nvidia and patching them before<br>
installing. I have not tried this yet, and it will certainly<br>
complicate doing kernel updates, unless I can work out how to automate<br>
it using DKMS.<br>
<br>
The implications for doing an 18.04.1 upgrade are also nasty. You<br>
will probably need to remove the Nvidia drivers and switch back to the<br>
Nouveau drivers before doing the upgrade. The Nouveau drivers have<br>
now got VDPAU support, but I have not tried using them with MythTV.<br>
Last I heard, a couple of years ago, Nouveau+VDPAU did not work as<br>
well with MythTV as it should. But it would be worth trying again now<br>
to see if it was OK - if so, that might be the best path forwards for<br>
MythTV boxes with old Nvidia cards.<br>
<br>
This same problem will hit users of Nvidia cards using the 340 drivers<br>
(such as my GT 220 cards) at the end of 2019 when Nvidia stops support<br>
for them also. Nvidia seems to be thinking that all its older GPUs<br>
are no longer being used. That may well be the case for video cards<br>
with fans, but my fanless ones, and my mother's motherboard builtin<br>
GPU, are still going just fine after more than 8 years 24/7.<br>
<br>
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</blockquote></div><br></div>