[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Problem: Pattern with vertical colored lines on the dom0 screen
Am 20.09.2010 schrieb Konrad Rzeszutek Wilk: > On Fri, Sep 17, 2010 at 03:20:11PM +0200, Dietmar Hahn wrote: > > Hi list, > > > > I have a problem with a new laptop (reproducable on other machines too) and > > the > > xen hypervisor. > > When the hypervisor gets booted with VESA mode 800x600 I see some messages > > and > > then the screen contents is switched into a pattern of vertical colored > > lines > > and never comes back. > > > In text mode all works well, but later the pattern appears when the X > > servers > > starts. > > I disabled VTd in the bios and now all went fine. > > So no VT-d and the you have no trouble even with VESA 800x600? Yes! > Are there any > errors reported by Xen when you use VT-d? In the original mail I sent the full hypervisor log from the error case (VT-d switched on). I couldn't spot an error message. > Can you ping the machine even > if the screen is showing vertical lines? Yes the machine runs well. I can work remotely. Only the console is affected. > > I saw this first with SLES11 SP1 but could reproduce it with the > > xen-unstable > > hypervisor. > > What about the Linux kernel? Is this happening when you use the PVOPS kernel? > I didn't try this out because at the end I could reproduce this behaviour while booting the hypervisor and before dom0 starts. Another thing is when starting the X server I see kernel messages in a loop: [ 1193.549808] [drm:i915_hangcheck_elapsed] ERROR Hangcheck timer elapsed... GPU hung [ 1193.572464] render error detected, EIR: 0x00000000 [ 1193.586720] i915: Waking up sleeping processes [ 1193.600679] [drm:i915_do_wait_request] ERROR i915_do_wait_request returns -5 (awaiting 1 at 0) dom0 kernel is from SLES11 SP1 2.6.32.12-0.7-xen. As in the orignal mail mentioned I would assume it's a problem with the bios and maybe some access stuff due to the iommu. But I'am not familiar enough with this. So I hoped anybody on the list could give me a hint while reading the logs in my original mail ;-) Thanks. Dietmar. -- Company details: http://ts.fujitsu.com/imprint.html _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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