<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_CLOSED bz_closed" title="CLOSED NOTOURBUG - Split screen/display corruption issue on HP EliteOne 800 G2 23-in Touch AIO" href="https://bugs.freedesktop.org/show_bug.cgi?id=97822#c83">Comment # 83</a> on <a class="bz_bug_link bz_status_CLOSED bz_closed" title="CLOSED NOTOURBUG - Split screen/display corruption issue on HP EliteOne 800 G2 23-in Touch AIO" href="https://bugs.freedesktop.org/show_bug.cgi?id=97822">bug 97822</a> from <a class="email" href="mailto:jani.nikula@intel.com" title="Jani Nikula <jani.nikula@intel.com>"> Jani Nikula</a> <pre>Created <a href="attachment.cgi?id=129793" name="attach_129793" title="diff between VBT dumps for BIOS and UEFI boots">attachment 129793</a> <a href="attachment.cgi?id=129793&action=edit" title="diff between VBT dumps for BIOS and UEFI boots">[details]</a> diff between VBT dumps for BIOS and UEFI boots The BIOS provides us with a different Video BIOS Table (VBT) depending on legacy vs. UEFI boot. There are differences in the panel type (really just an index in the tables), device type, timings. It's ridiculous that there are differences to begin with, as if the display hardware required different handling depending on the boot mode. I'm not sure which change (if any) explain the change in behaviour.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>