<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - 3.18: i855GM KMS regression" href="https://bugs.freedesktop.org/show_bug.cgi?id=87171#c5">Comment # 5</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - 3.18: i855GM KMS regression" href="https://bugs.freedesktop.org/show_bug.cgi?id=87171">bug 87171</a> from <a class="email" href="mailto:bonbons67@internet.lu" title="Bruno <bonbons67@internet.lu>"> Bruno</a> <pre>Better description of the output with 3.18: About top half of framebuffer is visible though pixel lines are not wrapped as one would expect, they are wrapped somewhere around the middle (but not exactly) so each pixel line from framebuffer fills two lines on monitor. >From looking at difference between reg_dumper outputs under 3.17 and 3.18, the major difference is: 3.17: DSPASTRIDE: 0x00002000 (8192 bytes) 3.18: DSPASTRIDE: 0x00001600 (5632 bytes) Full difference: 3.17: DSPASTRIDE: 0x00002000 (8192 bytes) DSPABASE: 0x01000000 DSPBCNTR: 0x58000000 (disabled, pipe A) DSPBBASE: 0x00020000 VGACNTRL: 0x80000000 (disabled) 3.18 DSPASTRIDE: 0x00001600 (5632 bytes) DSPABASE: 0x00020000 DSPBCNTR: 0x00000000 (disabled, pipe A) DSPBBASE: 0x00000000 VGACNTRL: 0xe104008e (disabled)</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>