Red Hat Bugzilla – Bug 492375
xorg fails to detect and use nouveau driver with livecd
Last modified: 2009-03-26 14:31:06 EDT
Created attachment 336849 [details] xorg log from system Description of problem: xorg chooses fbdev/vesa as opposed to nouveau for geforce 8200M G video Version-Release number of selected component (if applicable): How reproducible: Steps to Reproduce: 1.boot live cd 2. 3. Actual results: super slow performance due to use of fbdev/vesa Expected results: autodetection and use of nouveau driver Additional info: smolt profile http://www.smolts.org/client/show/pub_2056514d-e498-477e-982a-806fc6aca393
This is actually intentional, viz the patch in xorg-x11-server which enables nouveau by default: - case 0x10de: case 0x12d2: driverList[0] = "nv"; break; + case 0x10de: + switch (dev->device_id & 0xfff0) { + /* Non-functional with both nouveau and nv */ + case 0x0840: + case 0x0860: + driverList[0] = "vesa"; + break; + default: + driverList[0] = "nouveau"; + break; + } + break; i.e. the device ids 0x84* and 0x86* are intentionally set to use vesa. This is because they have been reported not to work with nv or nouveau. However, as you report success, this may need some tweaking. Ben, what do you want to do here? Do we find the people who reported problems with the 84* IDs - http://bugs.freedesktop.org/show_bug.cgi?id=17526 and http://bugs.freedesktop.org/show_bug.cgi?id=18092 are the relevant fd.o reports - and ask them to re-test with the Test Day live CD? -- Fedora Bugzappers volunteer triage team https://fedoraproject.org/wiki/BugZappers
Correction: Robert never actually said it works with nouveau, sorry Robert. And, indeed, it doesn't - https://bugzilla.redhat.com/show_bug.cgi?id=492368 . So this is not a bug, because we're intentionally defaulting to vesa on these cards because we actually know that nouveau doesn't work :) -- Fedora Bugzappers volunteer triage team https://fedoraproject.org/wiki/BugZappers