FS#41436 - [xf86-video-intel] KMS seems to be broken with Intel videodrivers

Attached to Project: Arch Linux
Opened by Mira (Extraterrestrial.) - Friday, 01 August 2014, 19:27 GMT
Last edited by Laurent Carlier (lordheavy) - Sunday, 21 September 2014, 19:17 GMT
Task Type Bug Report
Category Packages: Extra
Status Closed
Assigned To Jan de Groot (JGC)
Andreas Radke (AndyRTR)
Laurent Carlier (lordheavy)
Architecture x86_64
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 1
Private No

Details

Description:
KMS (Kernel Mode Setting) does not work with Intel videodrivers. Switching from X11 to virtual console is little slow.
kernel command line:
BOOT_IMAGE=/boot/vmlinuz-linux root=UUID=c5160107-44d1-44d1-ac89-8c2073d9a04a rw resume=/dev/sda3

Steps to reproduce:
Simply switch to virtual console from X11 by pressing Ctrl+Alt+F1. You will see a little delay (seems like monitor videomode changes).
This task depends upon

Closed by  Laurent Carlier (lordheavy)
Sunday, 21 September 2014, 19:17 GMT
Reason for closing:  No response
Comment by Doug Newgard (Scimmia) - Friday, 01 August 2014, 19:47 GMT
Does the video resolution change while booting up? If so, it's probably not a KMS issue. Is it possible you're see  FS#41353 ?
Comment by Mira (Extraterrestrial.) - Friday, 01 August 2014, 20:08 GMT
> Does the video resolution change while booting up?
Yes.
Comment by Doug Newgard (Scimmia) - Friday, 01 August 2014, 20:14 GMT
What happens when you switch back to X and then to the same VT again? Do you still have the delay?
Comment by Laurent Carlier (lordheavy) - Friday, 01 August 2014, 20:54 GMT
Can you provide kernel log and xorg log?
Comment by Mira (Extraterrestrial.) - Friday, 01 August 2014, 23:11 GMT
> Do you still have the delay?
Yes.

> Can you provide kernel log and xorg log?
Of course.
   dmesg.log (58.9 KiB)
   xorg.log (68.5 KiB)
Comment by Doug Newgard (Scimmia) - Saturday, 02 August 2014, 04:36 GMT
How are you starting X?
Comment by Mira (Extraterrestrial.) - Saturday, 02 August 2014, 09:23 GMT
Slim DM (systemctl start slim).
Comment by Laurent Carlier (lordheavy) - Monday, 08 September 2014, 12:37 GMT
please test with xf86-video-intel-2.99.916-1 in testing

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