<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [bdw-u iommu] DMAR error -> GPU hang" href="https://bugs.freedesktop.org/show_bug.cgi?id=89360#c100">Comment # 100</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [bdw-u iommu] DMAR error -> GPU hang" href="https://bugs.freedesktop.org/show_bug.cgi?id=89360">bug 89360</a> from <a class="email" href="mailto:stsp@list.ru" title="stsp@list.ru">stsp@list.ru</a> <pre>(In reply to Lakshmi from <a href="show_bug.cgi?id=89360#c96">comment #96</a>) > Workaround for gpu hangs that comes with DMAR ERROR is to add > intel_iommu=igfx_off kernel option. > > IF gpu hangs for some other reason please file a new bug if there isn't a > existing bug. > > Closing this bug, as the original issue is resolved with a work around fix. Unbelievable to hear such thing from an Intel employer. Please refer to the docs: <a href="https://www.kernel.org/doc/Documentation/Intel-IOMMU.txt">https://www.kernel.org/doc/Documentation/Intel-IOMMU.txt</a> ``` Graphics Problems? ------------------ If you encounter issues with graphics devices, you can try adding option intel_iommu=igfx_off to turn off the integrated graphics engine. If this fixes anything, please ensure you file a bug reporting the problem. ``` "to turn off the integrated graphics engine" is what the doc says. "please ensure you file a bug" is what the doc says. This should be re-opened.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>