<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - mesa-18.1: regression with TFP on intel" href="https://bugs.freedesktop.org/show_bug.cgi?id=107117#c16">Comment # 16</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - mesa-18.1: regression with TFP on intel" href="https://bugs.freedesktop.org/show_bug.cgi?id=107117">bug 107117</a> from <a class="email" href="mailto:fourdan@xfce.org" title="Olivier Fourdan <fourdan@xfce.org>"> Olivier Fourdan</a> <pre>(In reply to Denis from <a href="show_bug.cgi?id=107117#c15">comment #15</a>) > Olivier, could you please advice, how to verify the driver in use? The DDX can be seen in the Xorg logs, either in "~/.local/share/xorg/Xorg.*.log" or in "/var/log/Xorg.*.log" depending on your system. There, you should see either "modeset" or "intel" depending on which DDX you've selected in your xorg.conf (or xorg.conf.d/). e.g. for modesetting: (II) modesetting: Driver for Modesetting Kernel Drivers: kms (II) modeset(0): using drv /dev/dri/card0 for intel: (II) intel: Driver for Intel(R) Iris(TM) Graphics (II) intel: Driver for Intel(R) Iris(TM) Pro Graphics (II) intel(0): Using Kernel Mode Setting driver: i915, version 1.6.0 20180308 (--) intel(0): Integrated Graphics Chipset: Intel(R) HD Graphics 4400 Point is, something has changed in Mesa 18.1 which causes <a href="attachment.cgi?id=140540" name="attach_140540" title="Simple reproducer">attachment 140540</a> <a href="attachment.cgi?id=140540&action=edit" title="Simple reproducer">[details]</a> to render a white window with the Xorg modesetting driver with glamor but not with the intel DDX, at least on my hardware (using Fedora 28 here with xserver-1.20)... Many distributions have switched to the modesetting driver by default with Intel hardware.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>