Erroneous behavior when working with two monitors

asked 2015-04-15 02:34:59 -0600

Raadush gravatar image

Hi I have very annoying problem. I installed Fedora 21 on my laptop. I want to work with two monitors - primary being laptop screen and secondary is HP monitor connected through vga port. Everything is fine when I connect it, but every time I go to Settings in Gnome desktop environment, monitors start to flicker and end up being screwed. Sometimes laptop monitor turns off, sometimes HP turn off, sometimes I end up with mirrored desktop. I have some logs here.

At 9:18 I connected HP monitor to vga port:

Apr 15 09:18:03 rstasta.fedora kernel: [drm] probing gen 2 caps for device 8086:c01 = 261ad03/e
Apr 15 09:18:03 rstasta.fedora kernel: [drm] PCIE gen 3 link speeds already enabled
Apr 15 09:18:03 rstasta.fedora kernel: [drm] PCIE GART of 1024M enabled (table at 0x0000000000277000).
Apr 15 09:18:03 rstasta.fedora kernel: radeon 0000:01:00.0: WB enabled
Apr 15 09:18:03 rstasta.fedora kernel: radeon 0000:01:00.0: fence driver on ring 0 use gpu addr 0x0000000040000c00 and cpu addr 0xffff880036508c00
Apr 15 09:18:03 rstasta.fedora kernel: radeon 0000:01:00.0: fence driver on ring 1 use gpu addr 0x0000000040000c04 and cpu addr 0xffff880036508c04
Apr 15 09:18:03 rstasta.fedora kernel: radeon 0000:01:00.0: fence driver on ring 2 use gpu addr 0x0000000040000c08 and cpu addr 0xffff880036508c08
Apr 15 09:18:03 rstasta.fedora kernel: radeon 0000:01:00.0: fence driver on ring 3 use gpu addr 0x0000000040000c0c and cpu addr 0xffff880036508c0c
Apr 15 09:18:03 rstasta.fedora kernel: radeon 0000:01:00.0: fence driver on ring 4 use gpu addr 0x0000000040000c10 and cpu addr 0xffff880036508c10
Apr 15 09:18:03 rstasta.fedora kernel: radeon 0000:01:00.0: fence driver on ring 5 use gpu addr 0x0000000000075a18 and cpu addr 0xffffc900113b5a18
Apr 15 09:18:04 rstasta.fedora kernel: [drm] ring test on 0 succeeded in 1 usecs
Apr 15 09:18:04 rstasta.fedora kernel: [drm] ring test on 1 succeeded in 1 usecs
Apr 15 09:18:04 rstasta.fedora kernel: [drm] ring test on 2 succeeded in 1 usecs
Apr 15 09:18:04 rstasta.fedora kernel: [drm] ring test on 3 succeeded in 4 usecs
Apr 15 09:18:04 rstasta.fedora kernel: [drm] ring test on 4 succeeded in 3 usecs
Apr 15 09:18:04 rstasta.fedora kernel: [drm] ring test on 5 succeeded in 2 usecs
Apr 15 09:18:04 rstasta.fedora kernel: [drm] UVD initialized successfully.
Apr 15 09:18:04 rstasta.fedora kernel: [drm] ib test on ring 0 succeeded in 0 usecs
Apr 15 09:18:04 rstasta.fedora kernel: [drm] ib test on ring 1 succeeded in 0 usecs
Apr 15 09:18:04 rstasta.fedora kernel: [drm] ib test on ring 2 succeeded in 0 usecs
Apr 15 09:18:04 rstasta.fedora kernel: [drm] ib test on ring 3 succeeded in 0 usecs ...
(mas)
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