Hi, would like to try, but "vgaswitcheroo" seems to be ubuntu, can not find this in F22 directory in /.../debug If possible I would like to switch to Nvidia chip without using an second external screen but using the Nouveau driver, to test this Geeqie problem. Is there a similar "tool" in F22 as switcheroo in Ubuntu? Kind Regards -----Ursprüngliche Mitteilung----- Von: AV <volovics@xxxxxxxx> An: For testing and quality assurance of Fedora releases <test@xxxxxxxxxxxxxxxxxxxxxxx> Verschickt: Mo, 27 Apr 2015 6:21 pm Betreff: Re: nouveau driver freeze -- can anyone else reproduce this? On 04/27/2015 02:17 PM, Matthew Miller wrote: > On Mon, Apr 27, 2015 at 04:48:37AM -0400, Joerg Lechner wrote: >> If it's an "optimus", is in case of Geeqie the Nvidia Driver activen >> or another driver ? > > It is indeed Optimus. Out of the box, Fedora doesn't support switching > as Windows does. There are some experimental support for this > <http://bumblebee-project.org/>, but it's not very active. So, failing > that, you can switch in the BIOS setup screen. In my case, since I'm > using an external monitor, I needed to set it to Nvidia, because the > Intel GPU is only attached to the laptop's built-in screen. My experience is that since the inclusion of PRIME gpu offloading the nouveau driver seems to handle power management and switching adequately by itself, at least on older Nvidia Optimus chips. And you can get relevant info on the state through: # cat /sys/kernel/debug/vgaswitcheroo/switch And turn on/off the gpu driving the output by # echo ON/OFF > /sys/kernel/debug/vgaswitcheroo/switch Connect the graphics connectors with: # echo IGD/DIS > /sys/kernel/debug/vgaswitcheroo/switch AV -- test mailing list test@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe: https://admin.fedoraproject.org/mailman/listinfo/test -- test mailing list test@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe: https://admin.fedoraproject.org/mailman/listinfo/test
