Date: Tue, 6 Sep 2016 22:18:09 +0000 (UTC) From: Marius Strobl <marius@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r305507 - head/sys/sparc64/conf Message-ID: <201609062218.u86MI90a053558@repo.freebsd.org>
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Author: marius Date: Tue Sep 6 22:18:08 2016 New Revision: 305507 URL: https://svnweb.freebsd.org/changeset/base/305507 Log: Disable vt(4) by default on sparc64 as creator_vt(4) and vt_ofwfb(4) have the serious problem of not actually attaching the hardware they are driving at the bus level. This causes creator(4) and machfb(4) to attach and drive the very same hardware in parallel when both syscons(4) and vt(4) as well as their associated hardware drivers are built into a kernel, i. e. GENERIC, at the same time. Also, syscons(4) and its drivers still are way superior to vt(4) and its equivalents; unlike the syscons(4) counterparts the vt(4) drivers don't provide hardware acceleration resulting in considerably slower screen drawing, creator_vt(4) doesn't provide a /dev/fb node as required by the Xorg sunffb(4) etc. In theory, vt_ofwfb(4) should be able to handle more devices than machfb(4). However, testing shows that it hardly works with any hardware machfb(4) isn't also able to drive, making vt(4) and vt_ofwfb(4) not favorable for the time being from that perspective either. MFC after: 3 days Modified: head/sys/sparc64/conf/GENERIC Modified: head/sys/sparc64/conf/GENERIC ============================================================================== --- head/sys/sparc64/conf/GENERIC Tue Sep 6 22:03:53 2016 (r305506) +++ head/sys/sparc64/conf/GENERIC Tue Sep 6 22:18:08 2016 (r305507) @@ -147,7 +147,7 @@ device splash # Splash screen and scre options KBD_INSTALL_CDEV # install a CDEV entry in /dev # vt is the new video console driver -device vt +#device vt # Builtin hardware device auxio # auxiliary I/O device
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