Hi,
the modesetting driver works for me -- but it seems to drive the CPU usage up
compared to the intel driver, so probably this wouldn't be good for battery
life.
I haven't seen any lockups with either intel or modesetting.
I'd be surprised if it fixed the nouveau problems because they seem to be
caused by the DRI driver (which is still in use) not supporting multithreading
properly - but maybe using the modesetting driver doesn't hit the problematic
code path because something in 2D rendering isn't optimized or so.
Switching between internal graphics and separate GPU seems to work, but becomes
somewhat trickier to use:
$ xrandr --listproviders
Providers: number : 2
Provider 0: id: 0x7c cap: 0xf, Source Output, Sink Output, Source Offload, Sink
Offload crtcs: 3 outputs: 5 associated providers: 1 name:modesetting
Provider 1: id: 0x44 cap: 0xf, Source Output, Sink Output, Source Offload, Sink
Offload crtcs: 4 outputs: 1 associated providers: 1 name:modesetting
Now that both claim they're "modesetting", it's not that obvious which one is
the internal GPU and which one is the external GPU. Maybe we need to teach the
modesetting driver to identify itself better.
ttyl
bero
On Monday, January 02, 2017 20:51 CET, Tomasz Paweł Gajc <tpg...@gmail.com>
wrote:
Hi,
due to last issues with freezing plasma and various "black" screen experience
i call for obsoleting x11-driver-video-{intel,nouveau} to use built-in Xorg
modesetting driver.
How to use it ?
- Make sure you are not using proprietary drivers for nVidia
- Delete (or rename to something different) /etc/X11/xorg.conf
- Make sure you have no "driver" snippets in /etc/X11/xorg.conf.d
- remove Xorg intel or nvidia drivers by running as root: rpm -e --nodeps
x11-driver-video-Z where Z is one of intel or nvidia
- restart your X
- play some fullscreen 3D games
- use Plasma with OpenGL features
What are benefits of using modesetting ?
- no custom drivers with barely maintained code
- use GLAMOR for 2D acceleration based on OpenGL Mesa stack (https://
en.wikipedia.org/wiki/X.Org_Server#GLAMOR)
- well maintained driver
- potentially no black screens and strange freezes
Feedback really appreciated.
--
Cheers
TPG
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