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Message #86618
Re: [Bug 1397124] Re: gpu-manager tries to use pci-stub module as a vga driver
On 04-12-14 18:17:07, Martin Öhrling wrote:
> Got a working desktop without the lspci file!
>
Great, thanks for testing. I'll upload my fix soon.
> There is still an error message in log: "Error : Failed to open
> /dev/dri"
>
> Could that be related to error messages from dmesg?
No, that's just error output that I should silence, it's not that
relevant to gpu-manager's behaviour.
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https://bugs.launchpad.net/bugs/1397124
Title:
gpu-manager tries to use pci-stub module as a vga driver
Status in ubuntu-drivers-common package in Ubuntu:
In Progress
Bug description:
There is two AMD gpu:s installed in my computer. The first one uses
the fglrx module and is the one that is intended to be used for the
linux desktop. The second is intended for gpu passthrough and owned by
pci-stub.
gpu-manager makes the assumption that a card shall be used based on
vendor/device id and if the fglrx module is loaded. That is not
sufficient in this case. I have not verified if the same applies to
xen-pciback but it seems likely.
My workaround has been to use the fake lspci file option and a
manually created xorg.conf. Everything worked fine before I changed
one of the cards to use the pci-stub module. The result before use of
fake_lspci was a permanently blank screen.
ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: ubuntu-drivers-common 1:0.2.98.4
ProcVersionSignature: Ubuntu 3.16.0-24.32-generic 3.16.4
Uname: Linux 3.16.0-24-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Nov 27 22:07:08 2014
InstallationDate: Installed on 2014-01-18 (312 days ago)
InstallationMedia: Ubuntu-Server 13.10 "Saucy Salamander" - Release amd64 (20131016)
SourcePackage: ubuntu-drivers-common
UpgradeStatus: Upgraded to utopic on 2014-10-29 (29 days ago)
mtime.conffile..etc.init.gpu.manager.conf: 2014-11-26T23:10:48.005964
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References