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<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"> We met a problem on ubuntu17.10 for arm server with amdgpu(AMD RADEON PRO WX7100), we use open source driver which are integrated in ubuntu17.10. And the architecture is AArch64-linux-gnu.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"> we install :<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"> apt-get install xserver-xorg xinit xfce4 and mesa-utils glmark2<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"> we start x server :<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"> startx<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"> and then the monitor shows the screen and the screen is blurred( something wrong).<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><img width="685" height="514" id="ͼƬ_x0020_1" src="cid:image001.jpg@01D3741E.29071FD0"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> And I have tried some opengl applications, the output has same problem.(something is missing or in the wrong place.)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> But in a x86_64 architecture server, with same OS. The screen output is normal. (I check xorg\DDX\mesa\libdrm etc.all the versions are the same with aarch64 server.)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">What I have done:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 1</span><span style="font-family:ËÎÌå">¡¢</span><span lang="EN-US">I upgrade kernel to 4.15-rc2 ,upgrade DRM to 3.23,upgrade DDX to 1.40,upgrade mesa to 17.2.6, but the problem still exist.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> 2</span><span style="font-family:ËÎÌå">¡¢</span><span lang="EN-US">I enable ¡®shadowprimary¡¯ option,<b> the screen output became normal</b>, but the<b> performance drop quickly</b>¡ª¡ªglxgears drop from 4800fps to
600fps, glmark drop from 4300 score to 730 score. <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> I doubt there are something different in aarch64 and x86_64 but I don¡¯t know.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Any Advice or trial suggestion are welcome.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Thanks.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Rejohn.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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