<div dir="ltr">bumblebee/primus is easy to get setup these days and not an issue. Actually, with the nouveau drivers on a sufficiently updated RHEL 7/CentOS 7 system, you can simply use 'DRI_PRIME=1 ./application' and it will perform well.</div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Andrew Simpson</div></div></div>
<br><div class="gmail_quote">On Sat, Jul 28, 2018 at 10:49 PM, doug schmidt <span dir="ltr"><<a href="mailto:douglas.j.schmidt@gmail.com" target="_blank">douglas.j.schmidt@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">
<span class="m_4971041788375462221gmail-im" style="color:rgb(80,0,80);font-size:small;text-decoration-style:initial;text-decoration-color:initial">>><span> </span><span style="font-size:small;text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">nvidia/intel, and an nvidia chip that doesn't see any connected monitors. I</span><br style="font-size:small;text-decoration-style:initial;text-decoration-color:initial"><span style="font-size:small;text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">>> assume you've looked down the primus road?</span><div><span style="font-size:small;text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><br></span></div></span><div style="font-size:small;text-decoration-style:initial;text-decoration-color:initial"><span style="font-size:small;text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">> Yes. I've looked, just have not tried installing primus yet. Also, I looked at </span>using </div><div style="font-size:small;text-decoration-style:initial;text-decoration-color:initial">> bumblebee. Going to try disabling in BIOS first, then I'll try primus then bumblebee.</div><div style="font-size:small;text-decoration-style:initial;text-decoration-color:initial">> In BIOS I can change graphics to discrete instead of hybrid. I'll test each of them.</div><div style="font-size:small;text-decoration-style:initial;text-decoration-color:initial"><br></div><div style="font-size:small;text-decoration-style:initial;text-decoration-color:initial">I have not been able to test this fully yet. Just have not had time to do so.</div><div style="font-size:small;text-decoration-style:initial;text-decoration-color:initial"><br></div><div style="font-size:small;text-decoration-style:initial;text-decoration-color:initial">I have changed graphics from hybrid to discrete in the BIOS, disabling the Intel card, and</div><div style="font-size:small;text-decoration-style:initial;text-decoration-color:initial">enabling the Nvidia card. That works, X starts and I have gnome desktop. Still get the occasional </div><div style="font-size:small;text-decoration-style:initial;text-decoration-color:initial">freezing of the system, it comes back and I'm able to resume working. No hard lockups yet. (From my limited</div><div style="font-size:small;text-decoration-style:initial;text-decoration-color:initial">testing). </div><div style="font-size:small;text-decoration-style:initial;text-decoration-color:initial"><br></div><div style="font-size:small;text-decoration-style:initial;text-decoration-color:initial">I see some kernel messages, time outs for x amount of seconds. I need to reboot and check on dmesg messages. I can give full dmesg output, however I have seen some messages that I don't see every time.</div><div style="font-size:small;text-decoration-style:initial;text-decoration-color:initial"><br></div><div style="font-size:small;text-decoration-style:initial;text-decoration-color:initial">It's good that changing setting in BIOS shows X/gnome working. Ultimately, I'd like to stay away from making BIOS changes every time I want to boot from Windows to CentOS. Would be nice to have this while in the operating OS environments. Even if I didn't have dual boot, just having CentOS installed, would be nice to have the option to change graphics card without rebooting, and going to BIOS to make changes. </div><div style="font-size:small;text-decoration-style:initial;text-decoration-color:initial"><br></div><div style="font-size:small;text-decoration-style:initial;text-decoration-color:initial">Is going down the primus/bumblebee route, the only way for this? I have not tried this route yet, as I'm a little confused/hesitant from installing the elrepo/nvidia drivers, which disabled nouveau drivers. I see from looking at primus/bumblebee docs on elrepo the config mentions nouveau. Isn't nouveau disabled from nvidia driver install? What else is needed to convert to this setup?</div>
<br><div>Are these some questions I should be asking on the CentOS list also? I wanted to start here, as it seems most of my issues so far, point me back to elrepo packages possibly helping. (BIOS changes, nvidia drivers, primus, bumblebee, main line or long term kernels). I have yet to try anything other than stock install, elrepo nvidia drivers, and BIOS config changes. The elrepo drivers and BIOS config have been positive so far.</div><div><br></div><div>I have some time tomorrow through Tuesday to do some more testing. Any ideas or suggestions would be appreciated.</div><div><br></div><div>Seems like so far, issues are being able to change from Intel to Nvidia graphics while in operating environment, and the occasional freezes. I'll give primus a shot and test, but again, I'm a little confused with the mention in docs about nouveau. Again, I'll check on those kernel timeout messages that happen on stdout).</div><div><br></div><div>Let me know if I should check anything else or provide other output commands.</div><div><br></div><div>Thanks</div><div>Doug</div></div><br><div class="gmail_quote"><div dir="ltr">On Wed, Jul 11, 2018 at 11:04 AM doug schmidt <<a href="mailto:douglas.j.schmidt@gmail.com" target="_blank">douglas.j.schmidt@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">>
<span style="font-size:small;text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">nvidia/intel, and an nvidia chip that doesn't see any connected monitors. I</span><br style="font-size:small;text-decoration-style:initial;text-decoration-color:initial"><span style="font-size:small;text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">> assume you've looked down the primus road?</span>
<div><span style="font-size:small;text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><br></span></div><div><span style="font-size:small;text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">Yes. I've looked, just have not tried installing primus yet. Also, I looked at </span>using </div><div>bumblebee. Going to try disabling in BIOS first, then I'll try primus then bumblebee.</div><div>In BIOS I can change graphics to discrete instead of hybrid. I'll test each of them.</div><div>Figured I would send a message to list first, before looking at other roads. I though</div><div>perhaps maybe a config option in xorg.conf needed to be tweaked.</div><div><br></div><div>Also, just to clarify where you say "connected monitors", I don't have any external</div><div>monitors attached to the P70 laptop, currently just using the laptop display.</div><div><br></div><div>Also, I'm not really concerned about battery at the moment. As this laptop is 90-100%</div><div>always connected to AC power source.</div><div><br></div><div>Thanks</div><div>Doug</div></div><br><div class="gmail_quote"><div dir="ltr">On Wed, Jul 11, 2018 at 9:35 AM John Hodrien <<a href="mailto:J.H.Hodrien@leeds.ac.uk" target="_blank">J.H.Hodrien@leeds.ac.uk</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On Wed, 11 Jul 2018, doug schmidt wrote:<br>
<br>
> Hi,Just following up. Does anyone have any ideas of what I can try to get x/gnome working under nvidia drivers?<br>
<br>
nvidia/intel, and an nvidia chip that doesn't see any connected monitors. I<br>
assume you've looked down the primus road?<br>
<br>
<a href="https://elrepo.org/tiki/primus" rel="noreferrer" target="_blank">https://elrepo.org/tiki/primus</a><br>
<br>
Otherwise, if you get nowhere there, have you considered disabling the Intel<br>
card in the BIOS (if possible) which may make it appear as a simple nvidia<br>
only machine, and it should just work, at the cost of worse battery life.<br>
<br>
jh<br>
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