Bug#541117: xserver-xorg-video-intel: high CPU usage after 2.7.1-1 -> 2.8.0-1 upgrade
Andrew Pimlott wrote:
> Package: xserver-xorg-video-intel
> Version: 2:2.8.0-1
> Severity: important
>
> After upgrading from 2.7.1-1, firefox is terribly slow and causes xorg
> to pin the CPU for several seconds when (for example) switching tabs.
> I'm running kernel linux-image-2.6.30-1-686 on a Thinkpad X40. I've
> looked through the other bugs, and I don't think my problem matches any
> of them.
>
> I also observe that when I resume from suspend to ram, my background is
> corrupt. And I've had a couple crashes. None of this happened with
> 2.7.1-1.
>
> 2:2.8.0-2 has the same behavior.
>
> Finding a hint in bug 538283, I tried adding the i915 module with
> modeset=1. I made the changes in /etc/modules and
> /etc/modprobe.d/local.conf and rebooted. The effect on the text VCs was
> obvious, but when I tried to startx, it hung with a blank screen.
>
According to errors in your log, something's going bad with DRM. Does
this log come from a second X server while another X server was already
using the DRM device?
Brice
> (EE) intel(0): [drm] Failed to open DRM device for : No such file or directory
> (EE) intel(0): Failed to become DRM master.
> [...]
> (WW) intel(0): DRI2: failed to open drm device
> (**) intel(0): Framebuffer compression enabled
> (**) intel(0): Tiling enabled
> (**) intel(0): SwapBuffers wait enabled
> (EE) intel(0): Failed to initialize kernel memory manager
> (==) intel(0): VideoRam: 131072 KB
> (II) intel(0): Attempting memory allocation with tiled buffers.
> (WW) intel(0): xf86AllocateGARTMemory: allocation of 1536 pages failed
> (Cannot allocate memory)
> (WW) intel(0): Allocation error, framebuffer compression disabled
> (WW) intel(0): xf86AllocateGARTMemory: allocation of 10 pages failed
> (Cannot allocate memory)
> (II) intel(0): Tiled allocation successful.
> (II) intel(0): vgaHWGetIOBase: hwp->IOBase is 0x03d0, hwp->PIOOffset is 0x0000
> (II) UXA(0): Driver registered support for the following operations:
> (II) solid
> (II) copy
> (==) intel(0): Backing store disabled
> (==) intel(0): Silken mouse enabled
> (II) intel(0): Initializing HW Cursor
> (WW) intel(0): drmSetMaster failed: Bad file descriptor
>
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