Ubuntu 14.10 (kernel is 3.16.0) with nomodeset also boots. But it seems to be using the a generic driver
cat /var/log/kern.log | grep ERROR Jan 11 20:07:56 ubuntu kernel: [ 6.174086] [drm:radeon_init] *ERROR* No UMS support in radeon module! Jan 11 20:07:56 ubuntu kernel: [ 54.093686] [drm:radeon_init] *ERROR* No UMS support in radeon module! Jan 11 20:08:10 ubuntu kernel: [ 94.983647] [drm:radeon_init] *ERROR* No UMS support in radeon module! glxinfo | grep Open OpenGL vendor string: VMware, Inc. OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 3.5, 128 bits) OpenGL version string: 3.0 Mesa 10.3.0 OpenGL shading language version string: 1.30 OpenGL context flags: (none) OpenGL extensions: 2015-01-11 19:44 GMT+00:00 Federico <federicotg at gmail.com>: > > > 2015-01-11 14:19 GMT-03:00 Alex Deucher <alexdeucher at gmail.com>: > >> Booting with nomodeset disables the graphics drivers so if you are >> still getting problems, it may a hardware problem. Can you attach >> your full dmesg and lspci output? Are you disabling the onboard >> graphics when enabling the external dGPU? >> >> Alex >> > > I attached those outputs to > https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1386973 > I wasn't sure if you meant attaching to this response. > > I was able to boot with nomodeset into Ubuntu 15.04's image. I get to a > graphic log in screen, but I also get some errors in the kernel log > > [drm:radeon_init] *ERROR* No UMS support in radeon module! > > Which seems by design so I assume the VESA driver was in use. > > I will try to boot Ubuntu 14.10 live image with nomodeset to see if I can > get some error messages there. > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/dri-devel/attachments/20150111/852d3445/attachment.html>
