DragonflyBSD 6.2.1 very slow on Thinkpad T460
Michael Neumann
mneumann at ntecs.de
Tue Jan 18 01:28:56 PST 2022
On Mon, Jan 17, 2022 at 09:37:47PM +0100, Fritjof wrote:
> Hi,
Hi,
> I have installed DragonflyBSD 6.2.1 on my Thinkpad T460 with Hammer2.
> But I discoverd the following problem:
> - browsing with Firefox is incredibly slow, even moving the browser window jerks
Have you tried chrome?
> - htop(1) shows that one of four CPU cores is also always at 100%
Is it at 100% when firefox is running? X11 is running? On the console?
You might have an interrupt storm! Run `systat -v` and look at the right
side for "Interrupts". The numbers should not be too high.
> - I found the following message in via dmesg:
> % dmesg | grep error
> dm_target_error: Successfully initialized
> WARN_ON(domain->wake_count == 0)<4>WARN_ON(domain->wake_count == 0)<4>WARN_ON(domain->wake_count == 0)error: [drm:pid233:gen8_gmch_probe] *ERROR* Can't set DMA mask/consistent mask (-5)
> i915/skl_dmc_ver1_26.bin: could not load firmware image, error 2
> error: [drm:pid922:intel_dp_aux_wait_done] *ERROR* dp aux hw did not signal timeout (has irq: 1)!
> error: [drm:pid922:intel_dp_aux_wait_done] *ERROR* dp aux hw did not signal timeout (has irq: 1)!
> error: [drm:pid922:intel_dp_aux_wait_done] *ERROR* dp aux hw did not signal timeout (has irq: 1)!
> - % dmesg | grep i915
> i915/skl_dmc_ver1_26.bin: could not load firmware image, error 2
> drm0: Failed to load DMC firmware i915/skl_dmc_ver1_26.bin. Disabling runtime power management.
> [drm] Initialized i915 1.6.0 20171023 for dev_name on minor 0
> i915: warning, request 0xfffff800ce7d8bc0 not completed
This is "normal". I get the same output. Though I wonder whether we can
improve here!
> The i915 module is loaded:
> % kldstat
> Id Refs Address Size Name
> 1 21 0xffffffff80200000 1ad5398 kernel
> 2 1 0xffffffff81cd6000 c808 ehci.ko
> 3 1 0xffffffff81ce3000 ce90 xhci.ko
> 4 2 0xffffffff81cf0000 120e0 dm.ko
> 5 1 0xffffffff81d03000 1be98 dm_target_crypt.ko
> 6 1 0xffffffff82b1f000 1d990 if_iwm.ko
> 7 1 0xffffffff82b3d000 2068e8 iwm8000Cfw.ko
> 8 1 0xffffffff82d44000 1bb260 iwm8265fw.ko
> 9 1 0xffffffff83800000 118000 i915.ko
> 10 1 0xffffffff83918000 70000 drm.ko
> 11 1 0xffffffff83988000 1000 iicbus.ko
>
>
> I use the standard kernel and just load the iwm and i915 modules via /boot/loader.conf and /etc/rc.conf.
> Does anyone has an answer or hint how to fix this?
Did you configure the intel driver in /etc/X11/xorg.conf? Can you show
your "Device" section? It should look like this:
Section "Device"
Identifier "Card0"
# Option "AccelMethod" "XAA"
Driver "intel"
BusID "PCI:0:2:0"
EndSection
Do you see any Warnings (WW) or Error (EE) in /var/log/Xorg.0.log when
you start X? There are some AccelMethod's that you can try if things
don't work out of the box.
Regards,
Michael
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