<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Nouveau driver fails to poweron GPU on GM204 after dynamic poweroff" href="https://bugs.freedesktop.org/show_bug.cgi?id=94725#c26">Comment # 26</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Nouveau driver fails to poweron GPU on GM204 after dynamic poweroff" href="https://bugs.freedesktop.org/show_bug.cgi?id=94725">bug 94725</a> from <a class="email" href="mailto:info@netpower.fr" title="Orsiris de Jong <info@netpower.fr>"> Orsiris de Jong</a> <pre>I too have a optimus laptop with GM107 / intel graphics card, and I have not been able to use nouveau driver since I bought the laptop (using kernels 4.3.5 up to 4.8.10 on Fedora 23-25 x64). I have searched for multiple solutions so far, and always finished by blacklisting nouveau in order to be able to use that laptop. I could not even able to launch lspci without rendering my system unresponsive (process then takes 100% cpu and I get cpu softlocks) I've tried nouveau.runpm=0 and well, I can at least boot without having nouveau totally disabled :) When not using runpm=0, I get the following when launching lspci / or DRI_PRIME=1 glxgears [ 1470.121123] nouveau 0000:01:00.0: Refused to change power state, currently in D3 [ 1470.193738] nouveau 0000:01:00.0: Refused to change power state, currently in D3 [ 1470.205762] nouveau 0000:01:00.0: Refused to change power state, currently in D3 [ 1470.205766] nouveau 0000:01:00.0: DRM: resuming kernel object tree... [ 1470.205792] nouveau 0000:01:00.0: pci: failed to adjust cap speed [ 1470.205793] nouveau 0000:01:00.0: pci: failed to adjust lnkctl speed So I guess the nouveau driver cannot send to sleep / wake my nvidia card for whatever reason. I am actually trying rely on the discrete graphics in order to reduce power consumption by default. I noticed that I can't use vgaswitcheroo in order to chose my primary graphic card. Also noticed the following error messages on boot. [ 1.795356] [drm] Initialized drm 1.1.0 20060810 [ 1.881362] ACPI Warning: \_SB.PCI0.GFX0._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20160422/nsarguments-95) [ 1.881428] ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20160422/nsarguments-95) [ 1.881552] ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20160422/nsarguments-95) [ 1.881753] VGA switcheroo: detected Optimus DSM method \_SB_.PCI0.PEG0.PEGP handle [ 1.881753] nouveau: detected PR support, will not use DSM So far, when I switch graphic cards, I get the following in dmesg: [ 1174.921195] nouveau 0000:01:00.0: DRM: resuming kernel object tree... [ 1174.921209] nouveau 0000:01:00.0: DRM: resuming client object trees... [ 1174.921226] nouveau 0000:01:00.0: fifo: BIND_ERROR 01 [BIND_NOT_UNBOUND] [ 1317.637168] vga_switcheroo: client 0 refused switch I guess that nouveau driver does not allow to disable the nvidia card when runpm=0 is passed as argument ? Anything I could try please ?</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>