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I have an issue with my machine, which has an HDMI connected main monitor, after I ran the set of updates yesterday that include xf86-video-intel (1:2.99.917+676+g26f8ab5-1 -> 1:2.99.917+688
+g49daf5d-1). Other updates include mesa, and systemd to 231-1. Running the plasma desktop I have always set the Screen Energy Saving to switch off after a timeout of 10 minutes in the Energy Saving tab under Power Management in the System Settings area. The screen/monitor has always happily gone into powersave mode, and then just as happily usually wakes up when the mouse is moved, or if a button such as the shift key is pressed. However after the updates yesterday, including a reboot, the screen won't wake up once the system has gone into powersave.
I found that I can use ctrl-alt-F3 to go into a different VT, and then back to the graphics screen via ctrl-alt-F1, and then am presented with the screensaver password to get back into my plasma session. So using ctrl-alt-Fx does wake up the monitor from powersave. But this should not be necessary and I don't know if this is a bug in the xf86-video-intel package or something else, but wondered if anyone else has come across this problem, and if so if there is a workaround other than downgrading the buggy package?
Last edited by mcloaked (2016-08-03 07:47:14)
Mike C
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Same thing for me. I am also using an HDMI connected monitor with the plasma desktop. The last version of xf86-video-intel that works for me is xf86-video-intel-1:2.99.917+676+g26f8ab5-1-x86_64.
-- Carl
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When I get a bit of time to test I will try to downgrade the xf86-video-intel package and see if that fixes the problem - and if so I guess a bug report will be needed.
Mike C
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also maybe try the modesetting driver - seems to be prefered over the intel driver these times. see the note here https://wiki.archlinux.org/index.php/Intel_graphics
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Thanks damjan though I have tried using the modesetting driver but without success (not related to the current issue though)
Mike C
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I downgraded xf86-video-intel back to 1:2.99.917+676+g26f8ab5-1 and the bug disappeared - reported at https://bugs.archlinux.org/task/50233
Mike C
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After a slew of updates last night including plasma-workspace (5.7.2-2 -> 5.7.3-1) this problem seems to have been resolved and the newest version of xf86-video-intel now works with the powersave wake-up. So I will mark this as solved.
Mike C
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Hi,
This issue still exists for me, but I am using the latest cinnamon desktop.
It would be interesting to find out what change took place in driver that resulted in this bug.
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In my case whatever change took place in the driver seems to have been taken care of by corresponding changes to the plasma packages in the updates that followed a day or so later. Possibly the cinnamon packages also need some changes to resolve your issue?
Last edited by mcloaked (2016-08-04 15:37:35)
Mike C
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This may be true. I will wait and see if any updates from the cinnamon desktop solves the issue. In the mean while, I will use your work around to enter another VT and go back to the graphics screen.
Thank you.
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I'm in the same boat w.r.t Cinnamon & xf86-video-intel. Is there any news about a potential fix yet?
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Check your x11 settings at /etc/X11/xorg.conf.d/20-intel.conf
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "AccelMethod" "sna"
#Option "AccelMethod" "uxa"
EndSection
I changed "AccelMethod" "uxa" to "AccelMethod" "sna" and my problem was resolved. Also using Cinnamon.
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Thanks so much calilo, it indeed works now for me.
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