On Thu, Jun 05, 2014 at 11:33:55PM +0200, Thomas Richter wrote: > Update on the 830MG Updates: > > As Ville already said, resume from "suspend-to-ram" is broken. No > surprise, old broken bios. However, there is a big difference between > the kernel with the pipe-A quirk disabled, and the one with pipe-a and > pipe-b quirks enabled: If resumed without the quirk, the display is > dead, but you can at least re-initiate it with vbetool post, then > restart the X server. So at least, the kernel is working. > > With the pipe A quirk enabled, something dies immediately when > attempting to resume from suspend. The machine is completely > unresponsive, also not reachable over the network. The kernel dies away. For me resume gets stuck even w/o i915. So something is different clearly between our machines. Might be some driver, or might the BIOS. Do you have the latest BIOS on that thing? > This is *probably* related to the dying kernel when booting with vga=792 > (or vga=791 or vga=790, all cause the same problem, no working machine.) I must admit I didn't try the vga= options. I'll give them a go and see what happens. > > ---- > > Thanks for the patch and for all the work, unfortunately it does not > quite work as presented. I applied the patch correctly to > drm-intel-nightly, and it compiles fine. You applied all 15 patches, right? > > However, the following issues exist: > > *) If you boot with the kernel parameter vga=792 (i.e. the same console > resolutions as initiated by KMS) the system just hangs with a black > screen. Booting aborts, nothing happens. > > *) Watermark settings are *still* not correct. *SIGH*, *sigh* > > intel_reg_read 0x20d8 > 0x20D8 : 0x11F0104 I did warn you. If you'd just taken my branch you would have gotten the hack to avoid that. > > This is a watermark level of 4. As I said multiple times, the watermark > register needs to be *AT LEAST* eight (in numbers, 8) to have a stable > display. It is stable between 8 and 32. > > To reproduce, use a panning display with xrandr: > > xrandr --output DVI1 --mode 1024x768 --panning 2048x1536 > > then scroll, and see the display flicker. > > Folks, I really appreciate all your effort, but I would be really happy > if my comments on the wrong watermarks wouldn't be continuously ignored. > I submitted patches, twice, thrice... all went into the trash. > > Greetings, > Thomas -- Ville Syrjälä Intel OTC _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
