Created attachment 26335 [details] lspci -vv output, dmesg log with verbose pm contents and kernel .config Hello kernel folks, when I suspend-to-ram my machine, the display does not come up anymore after resume. Both DVI ports simply do not show any signal. Since I have not used this feature before, I cannot judge wheter this is a regression or not. A quick test with 2.6.33 showed the same result. Anything else works. The machine is entirely accessable via SSH and the system fan turns off during resume. Resuming is both possible via power button and RTC. The only problem: The display does not work. Thank you in advantage. If you need any more information, feel free to ask. Nico
video restore is the job of the video driver, in this case... VGA compatible controller: ATI Technologies Inc Mobility Radeon HD 3600 Series I don't happen to know the detailed status on the capabilities of the radeon driver -- I assume you have radeon loaded and are suspending from X, yes?
Totally forgotten to mention: I don't use X, it's normal VESA text console.
You got the black screen because BIOS does not do video re-post during S3 resume. Nowadays, Linux does the video re-post in drm driver. Please re-open the bug if loading the drm driver still does not help.