@Bryce: Yes, booting with only discrete or integrated enabled does solve the problem for me as well.
@Dweia: I patched the CMOS for my 3820TG and unlocked the Intel menu. Now I can choose to only have the IGD activated and PEG (radeon) completely shut off drawing zero power. Same thing as going through vga_switcheroo or using the acpi calls but less hassle. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/727620 Title: [Radeon HD 5650 and 5470] Driver crash during recovery boot and in normal boot (Regression from 2.6.38-3 to -4) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
