- 1 Corrupted fonts after resume from ram
- 2 There is no i915.powersave option
- 3 GUC?
- 4 [drm:intel_pipe_update_start [i915]] *ERROR* Potential atomic update failure on pipe A
- 5 The new intel driver is a little bit faster than modesetting
- 6 Backlight is not adjustable after trying various acpi_osi values
Corrupted fonts after resume from ram
I've finally found searching across many forums the solution for my i915 graphic card.
My card is: "Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller (rev 04)".
The problem is: After resuming from ram, some letter have a missing orizzontal line, for example I see ¦ instead of |. Another thing is that sometime, after resuming, the cpu goes to 100% of usage with no apparent reason.
The solution is: Create the file /etc/modprobe.d/local.conf (if it doesn't already exist) and add to it the line "options drm_kms_helper poll=N".
There is no i915.powersave option
It's probably some mistake. I have an HD Graphics 4000 and I note no "powersave" option in output of
modinfo -p i915 and
systool -m i915 -av commands. This is the output of both commands: modprobe, systool.
- Lack of powersave parameter for i915 confirmed as of today with xf86-video-intel 1:2.99.917+691+ga77397a-1 (on both an Atom Pineview and Core i3 Ivy boxes). Also by dmesg:
[ 0.980110] i915: unknown parameter 'powersave' ignored [ 1.069323] [drm] Initialized i915 1.6.0 20160229 for 0000:00:02.0 on minor 0
- Article now looks OK to me after Tharre contribution as September 24, 2016 00:55. --kozaki (talk) 11:16, 24 September 2016 (UTC)
What is this: https://01.org/linuxgraphics/downloads/sklgucver43 and do we need it? Greyltc (talk) 19:53, 7 January 2016 (UTC)
[drm:intel_pipe_update_start [i915]] *ERROR* Potential atomic update failure on pipe A
Maybe the solution to get rid of the above dmesg log spamming could be mentioned? You just add `options i915 enable_psr=0` to the file `/etc/modprobe.d/i915.conf`. Bjourne (talk) 17:04, 19 August 2016 (UTC)
The new intel driver is a little bit faster than modesetting
Modesetting was faster and better then xf86-video-intel, but after 09/04 upgrade, xf86-video-intel is 10%-20% faster. Do you noted the difference?
- Nope, unfortunately the driver is still to buggy to see any real progress happening. I am fighting screen stuttering without any success, see Talk:Dell XPS 13 (2016)#Screen stuttering. -- Edh (talk) 08:24, 16 September 2016 (UTC)
Backlight is not adjustable after trying various acpi_osi values
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