DRM inquiry to Backported drm kernel modules

2018-08-07 Thread John Sledge
Hi all, The main goal is to have the SLES12 SP3 kernel version 4.4.140-94.42.1 the fix it needed for Kabylake graphics issue and also enable the dp aux character device CONFIG_DRM_DP_AUX_CHARDEV=y. I like to inquiry if there's a way or how to proceed with this correctly. My question is I have a I

Re: RE: [Intel-gfx] DRM Inquiry

2018-06-13 Thread John Sledge
hanks,John On Wednesday, June 13, 2018, 3:07:14 PM GMT+8, Jani Nikula wrote: On Wed, 13 Jun 2018, John Sledge wrote: > I like to understand how the DRM_DP_AUX_CHARDEV=y kick off. Try 'git grep DRM_DP_AUX_CHARDEV' in your kernel git repo, and see how it affects conditional

Re: RE: [Intel-gfx] DRM Inquiry

2018-06-12 Thread John Sledge
Hi Jani, I like to understand how the DRM_DP_AUX_CHARDEV=y kick off. Regards,John On Monday, June 11, 2018, 7:36:51 PM GMT+8, Jani Nikula wrote: On Mon, 11 Jun 2018, John Sledge wrote: > Thanks for the help. I was able to manage your advice on the > drm_dp_aux_chardev. Th

Re: RE: [Intel-gfx] DRM Inquiry

2018-06-11 Thread John Sledge
Hi Jani, Thanks for the help. I was able to manage your advice on the drm_dp_aux_chardev. Though I still need to learn more about the DRM vs kernel process flow. Like for example, upon changing/adding DRM_DP_AUX_CHARDEV in kernel .config, How did DRM_DP_AUX_CHARDEV was being invoke here? From t

Re: DRM Inquiry

2018-05-25 Thread John Sledge
t;> out.txt",offset); ret = system(call); }return 0;} Regards,John On Friday, May 25, 2018, 2:56:04 PM GMT+8, Jani Nikula wrote: On Fri, 25 May 2018, John Sledge wrote: >  Hi Jani, > I can now see /dev/drm_dp_aux*. > I'm not familiar with dd command.Correct

Re: DRM Inquiry

2018-05-24 Thread John Sledge
ntf("ioctl success");   }   return 0;} Thanks,John On Thursday, May 24, 2018, 8:38:02 PM GMT+8, Jani Nikula wrote: On Thu, 24 May 2018, John Sledge wrote: > I was able to update my kernel to 4.6 which has the DRM_DP_AUX_CHARDEV > in the Kconfig file linux-4.6\drivers

Re: DRM Inquiry

2018-05-24 Thread John Sledge
PM GMT+8, John Sledge wrote: Hi Jani, Good day! Thank you for taking the time to point out those information. It’s a great help to me. Also apologies for the late reply, your first reply went to my spam inbox, not sure what happen and I was waiting for replies for days. I'm still n

Re: DRM Inquiry

2018-05-23 Thread John Sledge
nnel. The second advice, I guess your correct since the display device i needed to communicate is under Connector: DP-1 and not in Connector: eDP-1. This is based on the application modeprint result. Regards,John On Friday, May 18, 2018, 5:48:31 PM GMT+8, Jani Nikula wrote: On Thu,

DRM Inquiry DPCD

2018-05-22 Thread John Sledge
Hi , I’ve been doing some PTN3460 programming under Linux and I have some questions regarding on setting the brightness level via DisplayPort Native Aux. The display device with PTN3460 is connected in DP (display port) to my computer. I’m currently looking into the DRM (Direct Rendering Manager

DRM Inquiry

2018-05-18 Thread John Sledge
Hi All, Good day! I’ve been doing some PTN3460 programming under Linux using C/C++ and I have some questions regarding on setting the brightness level to my display device. The display device with PTN3460 is connected in DP (display port) to my computer. Only needs a DisplayPort native AUX comman