Ubuntu
xserver-xorg-video-intel package

  1. Bug #1453298
  2. Comment #143

Comment 143 for bug 1453298

Revision history for this message
In , Laszlo-fiat (laszlo-fiat) wrote :

(In reply to John from comment #99)
> To cap frequency I read the max (779 for mine) from
>
> cat /sys/class/drm/card0/gt_max_freq_mhz
>
> To set pick a lower value (as root)
>
> echo 423 > /sys/kernel/debug/dri/0/i915_max_freq

I have a Z3735F baytrail tablet running Debian 8 with a 1 month old linux-next kernel.

I've lowered the i915_max_freq to 345 MHz, and achieved stability that way.
No freezes since then. The Z3735F GPU has a base freq of 311 MHz, so I am pretty close to that.

I have also patched the kernel source with a few baytrail sdhci related patches from: https://github.com/hadess/rtl8723bs/tree/master/patches