<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type="text/css" style="display:none;"></style> </head> <body dir="ltr"> <div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;font-family:Calibri,Arial,Helvetica,sans-serif;"> <p>If I read this correctly you reverted the commit which enables UVD PG on Tonga? I can't see how that impacts Polaris at all. </p> <p><br> </p> <p>If I had to guess it's a dGPU state issue. I've had on occasion to resort to cold reboots to bisect the kernel because the GPU firmware can get into states that aren't 100% resolved by a warm reboot.</p> <p><br> </p> <p>There is a known bad commit which was reverted by Christian which I guess isn't out on fdo yet. <a href="https://cgit.freedesktop.org/~agd5f/linux/commit/?h=amd-staging-4.7&id=6691270952b6909218c520dcc71a342070c96874" class="OWAAutoLink" id="LPlnk533633" previewremoved="true">https://cgit.freedesktop.org/~agd5f/linux/commit/?h=amd-staging-4.7&id=6691270952b6909218c520dcc71a342070c96874</a> that commit seems to break dGPU support.</p> <p><br> </p> <p>Cheers,</p> <p>Tom</p> <br> <br> <div style="color: rgb(0, 0, 0);"> <hr tabindex="-1" style="display:inline-block; width:98%"> <div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> amd-gfx <amd-gfx-bounces@lists.freedesktop.org> on behalf of Jeremy Newton <alexjnewt@gmail.com><br> <b>Sent:</b> Wednesday, October 5, 2016 22:54<br> <b>To:</b> amd-gfx@lists.freedesktop.org<br> <b>Subject:</b> Issue with amd-staging-4.7 on rx480</font> <div> </div> </div> <div> <div dir="ltr"> <div><span style="text-align:right"> <div style="text-align:start">Hello,</div> <div style="text-align:start"><br> </div> <div style="text-align:start">I'm currently regularly building and using the amd-staging-4.7 linux branch, which can be found here:</div> <div style="text-align:start"><br> </div> <div style="text-align:start"><a href="https://cgit.freedesktop.org/~agd5f/linux/log/?h=amd-staging-4.7" id="LPlnk449083" previewremoved="true">https://cgit.freedesktop.org/~agd5f/linux/log/?h=amd-staging-4.7</a></div> <div style="text-align:start"><br> </div> <div style="text-align:start">It seems that one of the commits pushed on 2016-10-03 broke something, and I just wanted to give the devs a heads up in case no one noticed. I'm guessing it was caused by one of the commits in the range of e3bb40f all the way up to 78d1842.</div> <div style="text-align:start"><br> </div> <div style="text-align:start">I'm using an RX480, polaris10. The issue seems to have two symptoms:</div> <div style="text-align:start">- Plymouth (the boot splash screen) seems to get visually corrupted or just blacked out.</div> <div style="text-align:start">- After login, the screen just remains black until I hard reset.</div> <div style="text-align:start"><br> </div> <div style="text-align:start">Reverting back to 8f877a8 seems to fix it. I'm using Fedora 24 with GNOME. As well, I haven't had time to bisect, but I can do so if desired.</div> <div style="text-align:start"><br> </div> <div style="text-align:start">Thanks!</div> </span></div> </div> </div> </div> </div> </body> </html>