Could you post some details about which intel video device/chipset the affected system is using?
There are some newer chips that can use AccelMethod SNA, but also require Option TearFree (which IIRC is now on by default). Otherwise, the screen is garbled much as you describe. There some older chips (e.g., i845, i855(?), i915) that work with AccelMethod SNA and don't require Option TearFree (and need to disable it to save the performance penalty). Then there are some in the middle (e.g., i945, i946, G41, Q45) that don't work with SNA at all (garbled screen much as you describe) and require AccelMethod UXA. We thought we'd figured out the non-working range of chip generations and had them default to UXA and pulled that up to netbsd-9 quite some months ago. Sounds like you've found an outlier? If you could move your "xorg.conf" aside, restart X, and post the resulting "/var/log/Xorg.0.log", that might shed some light on which chip is not covered by the above cases. Thanks. -- |/"\ John D. Baker, KN5UKS NetBSD Darwin/MacOS X |\ / jdbaker[snail]consolidated[flyspeck]net OpenBSD FreeBSD | X No HTML/proprietary data in email. BSD just sits there and works! |/ \ GPGkeyID: D703 4A7E 479F 63F8 D3F4 BD99 9572 8F23 E4AD 1645