Thanks! That line 3170 in the patched Ubuntu version is line 3125 upstream: pMga->RestoreAccelState(pScrn); Other occurences of this function pointer have been guarded with XAA ifdefs, so it is only initialized if XAA is available in the server. XAA disappeared after Precise IIRC so this explains the regression, probably also seen in Quantal.
Jaromir, I have made a patch that hopefully will fix this. I am attaching a debdiff that can be used for a SRU request if it works fine. For your convenience I have also uploaded a patched package for Raring to my PPA. Please test and report back. ** Patch added: "SRU debdiff for Raring" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-mga/+bug/1180986/+attachment/3684248/+files/xserver-xorg-video-mga_1.6.2-0ubuntu1.1.debdiff -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-mga in Ubuntu. https://bugs.launchpad.net/bugs/1180986 Title: X Segmentation fault with dual-head config on Matrox G45FMDVP32DB /32MB /DVI /VGA Status in “xserver-xorg-video-mga” package in Ubuntu: New Bug description: Hello. We're experiencing problems when running X server configured for dual-head with Matrox G45FMDVP32DB. The crash doesn't appear with single screen config. lspci -nn ------------- 02:00.0 VGA compatible controller [0300]: Matrox Electronics Systems Ltd. MGA G400/G450 [102b:0525] (rev 85) Regards, Jaromir. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-mga/+bug/1180986/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
