I have an issue with the apple gmux driver when suspending from the integrated graphics with the discrete graphics turned off. The system resumes fine into the integrated graphics, but when I switch to the discrete gpu (radeon in my case) after the suspend/resume cycle, the display freezes. I've found that when the discrete gpu is turned off, it's completely powered off, but yet remains in the pci device listings. Sometimes I see that the system tries to write the 0xff pci failure values into the pci config space for the radeon gpu when resuming. Attached is a (messy) recorded session which shows the discrete gpu being listed but turned off. Should it be removed from the pci devices when in the powered off state? I'm running 3.10-rc2 with the five attached patches (patch 4 is unnecessary).
Attachment:
gmux-test-session.gz
Description: GNU Zip compressed data
Attachment:
0001-drm-i915-add-LVDS-panel-mode-quirk-for-Macbook-Pro-8.patch
Description: Binary data
Attachment:
0002-Changed-drm_mode_destroy-to-kfree.patch
Description: Binary data
Attachment:
0003-Added-another-mpb82-quirk.patch
Description: Binary data
Attachment:
0004-The-chip-id-for-SUMO2-isn-t-used.patch
Description: Binary data
Attachment:
0005-Remove-posted-for-radeon-mbp82.patch
Description: Binary data
