Re: [Bug 1706474] Re: gdm3 nvidia modeset=1 is broken, external screens don't work

Good news from my side; I just updated everything on th ThinkPad W520, an old Optimus laptop. the Uubntu 17.10 desktop now works with hybrid graphics, prime sync and gdm3 using the latest updates (pre-release channel). I have not added any PPAs so it's using the 375 driver currently in the 17.10

Re: [Bug 1706474] Re: gdm3 nvidia modeset=1 is broken, external screens don't work

Thanks Doug, that bug report is exactly as the nvidia forum so you and I are doing the same thing. On 28 August 2017 at 02:41, Doug McMahon <1706...@bugs.launchpad.net> wrote: > bug reports aren't suitable for troubleshooting but anyway I do as shown > here >

Re: [Bug 1706474] Re: gdm3 nvidia modeset=1 is broken, external screens don't work

HI Doug, it could be hardware dependent although my two Optimus laptops are very mainstream (both Quadro). It's more likely to be configuration (I hope) How do you achieve modeset=1? How do you confirm that you have Prime Sync working? I use xrandr --verbose | grep PRIME regards Tim On 27

Re: [Bug 1706474] Re: gdm3 nvidia modeset=1 is broken, external screens don't work

Thanks, I look forward to it. It works with lightdm, though. What is GDM doing that leads to a kernel panic, that lightdm does not do? On 31 July 2017 at 12:03, Daniel van Vugt wrote: > Oh, it appears your "p50 with a quadro M1000M" is relatively new. > > I read

Re: [Bug 1706474] Re: gdm3 nvidia modeset=1 is broken, external screens don't work

That;s even worse. I don't any working screen, no login. This is not a trivial bug, I think, although I'd be happy for an easy solution. ul 26 17:26:38 raffles systemd[2817]: Starting Accessibility services bus... Jul 26 17:26:38 raffles dbus-daemon[2832]: Successfully activated service

Re: [Bug 1706474] Re: gdm3 nvidia modeset=1 is broken, external screens don't work

The problem is that Optimus (Nvidia's hybrid driver technology) requires modeset=1 to use it properly so there are millions of laptop users who will have a problem with this :) https://devtalk.nvidia.com/default/topic/957814/linux/prime-and-prime-synchronization/ Plus it works fine with lightdm.