[Bug 90451] Dedicated gpu on HP 355 G2 not working correctly (slower than integrated+corrupt display in es2gears)

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=90451

--- Comment #8 from l55 at anonymousspeech.com ---
I tested with gears on gallium, there i can't even switch gpus:

$ xrandr --listproviders
Providers: number : 1
Provider 0: id: 0x54 cap: 0xf, Source Output, Sink Output, Source Offload, Sink
Offload crtcs: 2 outputs: 3 associated providers: 0 name:radeon

$ glxinfo | grep ' renderer'
ATTENTION: default value of option vblank_mode overridden by environment.
OpenGL renderer string: Gallium 0.4 on AMD MULLINS

$ DRI_PRIME=1 glxinfo | grep ' renderer'
ATTENTION: default value of option vblank_mode overridden by environment.
OpenGL renderer string: Gallium 0.4 on AMD MULLINS


However in vgaswitcheroo/switch there are still 2 gpus:

# cat /sys/kernel/debug/vgaswitcheroo/switch
0:IGD:+:Pwr:0000:00:01.0
1:DIS: :DynOff:0000:01:00.0

Has there been some change in how to switch between gpus and it's not done with
DRI_PRIME=1 anymore?

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