Date: Mon, 7 Sep 2020 13:02:35 +0930 From: "O'Connor, Daniel" <darius@dons.net.au> To: FreeBSD Hackers <freebsd-hackers@freebsd.org> Subject: ASPEED video driver Message-ID: <8851FC7F-979D-4CDC-8513-CE893B2EF269@dons.net.au>
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Hi, Has anyone had success with the ASPEED Xorg driver? I have tried several = versions (in ports, from ASPEED directly, from freedesktop.org etc) and = they all hang trying to read DRAM information in ASTGetDRAMInfo. I am = running FreeBSD 12 on a Supermicro X11SSH-F. The hang is here: do { ; } while (*(volatile ULONG *) (pAST->MMIOVirtualAddr + 0x10000) !=3D = 0x01); I patched it to use some hard coded values I extracted from an old = system where it worked and it does run but the performance is quite = terrible. I've also tried scfb (performance is so so but it's stuck and 1024x768) = and VESA (runs at 1920x1080 but the performance is intolerable). I'm not expecting mind blowing performance but even the best performing = option above is quite painful to use. These systems are mostly = unattended but the bad performance does make the setup and test during = installation quite painful. Performance used to be tolerable but it seems to have gotten = significantly worse in newer BIOS versions. For now we are putting passively cooled GT710s in them but it would be = nice to fix it properly. I note that Linux has a DRM driver for these = https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/dr= ivers/gpu/drm/ast=20 However I'm not sure how that integrates with X.. If Linux doesn't = actually use the Xorg driver then I suppose that would explain why it's = rotted and useless. If that is the case, does anyone know difficult it would be to port the = Linux DRM driver? I did try contacting ASPEED and Supermicro but they pointed the finger = at each other and then blamed FreeBSD so I'm a bit stuck. Thanks. -- Daniel O'Connor "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum
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