Is there a PR filed with this?


On 26 March 2015 at 14:00, Jakob Alvermark <> wrote:
> On Tue, March 24, 2015 00:29, Hans Petter Selasky wrote:
>> Hi,
>> Without the attached kernel patch(es), Xorg starts consuming alot of CPU
>> and becomes very unresponsive and unusable.
>> Using ktrace reveals that X-org is issuing DRM_IOCTL_MODE_GETCONNECTOR
>> over and over again with no apparent reason. It doesn't happen when using a
>> simple window manager like blackbox. I was not able to use XFCE4 (9-stable
>> userland) with 11-current kernel at all, after the latest DRM2 kernel
>> updates. It worked fine before the update.
>> I'm not sure what is causing it. Going through the new DRM2 code
>> revealed that a mode sorting function did not take all parameters like
>> interlaced or not into account, causing the mode list to be reshuffelled
>> every time a new mode scan was done. Not sure if Xorg cares about this
>> though.
> I got the same problem with XFCE4, Xorg at 100% CPU.
> Applied the patch and it works again.
> Jakob
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