<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> <meta name="Generator" content="Microsoft Word 14 (filtered medium)"> <style></style> </head> <body lang="ZH-CN" link="blue" vlink="purple"> <div class="WordSection1"> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p> <div style="border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt"> <div> <div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm"> <p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> magcius@gmail.com [mailto:magcius@gmail.com] <b>On Behalf Of </b>Jasper St. Pierre<br> <b>Sent:</b> Monday, March 10, 2014 10:42 AM<br> <b>To:</b> Wang, Quanxian<br> <b>Cc:</b> Hardening; wayland-devel@lists.freedesktop.org; Zhang, Xiong Y; Pekka Paalanen; Matthias Clasen; Jason Ekstrand<br> <b>Subject:</b> Re: [PATCH 1/6] Add weston randr protocol<o:p></o:p></span></p> </div> </div> <p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p> <div> <div> <p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-US">There's two different things here. There's the protocol and the "UI". (By UI I also mean a command-line tool like /usr/bin/xrandr, I just mean the way the user does a mode-set).<o:p></o:p></span></p> </div> <div> <p class="MsoNormal"><span lang="EN-US">I think to build a good UI, we need a list of available modes that the user can choose from. Having a tool where the user enters two numbers, and then tells the user "No, guess again" if they entered the wrong numbers is bad user interface design.<br> <br> But, as Hardening said, the protocol should allow setting modes that aren't in the advertised list.<o:p></o:p></span></p> <p class="MsoNormal"><b><i><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D">[Wang, Quanxian] Sorry for response later. From command line tools, Weston-wrandr will provide the mode list instead of guessing what is in. you can firstly use ‘weston-wrandr –-output’ to query all modes of output. And then select one of them.<o:p></o:p></span></i></b></p> <p class="MsoNormal"><b><i><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D">Of course, if you want to new a mode, that is fine. It is also reasonable for me. </span></i></b><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p> </div> </div> <div> <p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-US"><o:p> </o:p></span></p> <div> <p class="MsoNormal"><span lang="EN-US">On Sun, Mar 9, 2014 at 10:34 PM, Wang, Quanxian <<a href="mailto:quanxian.wang@intel.com" target="_blank">quanxian.wang@intel.com</a>> wrote:<o:p></o:p></span></p> <div> <p class="MsoNormal"><span lang="EN-US"><br> >> 5) mode setting parameters control<br> >> Mode and output will be under the control. User could not randomly to set their<br> >mode. They have to select the available modes and outputs provided by<br> >compositor. Don't allow random mode setting. The mode and output information<br> >could be provided by weston-randr apps or wl_output interface.<br> ><br> >I don't think that allowing to set only announced modes is a good idea.<br> >The RDP compositor is a good example where you can't know the supported<br> >modes (as nearly all modes can be supported).<br> ><br> >IIRC depending on the drivers, drm can also set arbitrary modes.<o:p></o:p></span></p> </div> <p class="MsoNormal"><span lang="EN-US">[Wang, Quanxian] so, let user set the mode without limitation? Not sure if we should support that.<br> Any comment for this requirement?<o:p></o:p></span></p> <div> <div> <p class="MsoNormal"><span lang="EN-US">><br> ><br> >Regards<br> ><br> >--<br> >David FORT<br> >website: <a href="http://www.hardening-consulting.com/" target="_blank">http://www.hardening-consulting.com/</a><br> _______________________________________________<br> wayland-devel mailing list<br> <a href="mailto:wayland-devel@lists.freedesktop.org">wayland-devel@lists.freedesktop.org</a><br> <a href="http://lists.freedesktop.org/mailman/listinfo/wayland-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/wayland-devel</a><o:p></o:p></span></p> </div> </div> </div> <p class="MsoNormal"><span lang="EN-US"><br> <br clear="all"> <br> -- <br> Jasper<o:p></o:p></span></p> </div> </div> </div> </body> </html>