Jump to content


  • Content Count

  • Joined

  • Last visited

Community Reputation

2 Neutral

About olm3ca

  • Rank
    Private First Class

Recent Profile Visitors

The recent visitors block is disabled and is not being shown to other users.

  1. Not really something I can do with Coreboot. It's build into the firmware. I know I have MATs support, and on the Pixelbook we got it working on Mojave but not Catalina+...
  2. Really appreciate the reply @Jake Lo. I've tried these and still no luck. Another strange occurrence right now is that itlwm and Airportitlwm are failing. I used to be able to use Airportitlwm, but gave up and switched to itwlm with Heliport. Now itwlm is also failing. One thing about these Chromebooks is that nvram never works the way it should, so I wonder if something is up there. Anyway, if you have any other ideas, I'll be trying as many combinations as I can think of for this iGPU. On a normal machine it would have worked by now, I'm sure!
  3. Thanks. It's being quite stubborn. I've tried a lot of combinations and thus far it remains at 31mb. Out of curiosity, @Jake Lo - how did you figure out the framebuffer args for the Pixelbook last time? Was it something you gathered from Hackintool or another method?
  4. @Hervé Thanks so much for the fast response. I can report that, for the first time, I can use a device-id without a kernel panic! Unfortunately I still have 31mb, but just to confirm the following: Yes, the hardware ID of the chip is 8086:9B41 => i5-10210U (Mobile UHD 620). Your post on this iGPU was really helpful. I'm using SMBIOS MacBookPro16,3 as it seems to be slightly more aligned with my hardware platform-id is 0900A53E and device-id is 9B3E0000. Boots with 31mb VRAM I'm using the framebuffer args from the OC guide (fbmem, stolenmem). I can also boot without
  5. @Hervé and @Leon With your help, we got Mojave working on the Google Pixelbook. I've since started on a new project, the Samsung Galaxy Chromebook. It's very similar to the Samsung Galaxy Flex, but I'm having some difficulty again with graphics acceleration and was wondering if you wouldn't mind giving this a look. Here are the specs of the machine: CPU: Intel i5-10210U GPU: Intel UHD 620 Catalina installed, with the following working: Wifi / bt, internal NVMe SSD, battery percentage. Touchpad, touchscreen, and audio not working but this is secondary. Custom D
  6. We definitely do! What really helped with the config.plist you shared was the enable-dpcd-max-link-rate-fix and the dpcd-max-link-rate (highlights from the config are below). Without those, it wouldn't get to the GUI. For some reason though, this exact same EFI does not boot to the GUI on Catalina. We're still trying to figure out why. the install procedure and more details are on the repo here: https://github.com/olm3ca/PixelbookOSX/blob/main/README.md AAPL,ig-platform-id / Data / 00001E59 framebuffer-patch-enable / Data / 01000000 framebuffer-fbmem / Data / 00009000
  7. I got it working! @Jake Lo it turns out the config.plist you shared with me on Mojave works like a charm The problem was Catalina, and I think it's related to the firmware on this Pixelbook, it's not a regular BIOS. Something prevented graphics acceleration on Catalina but now it's working on Mojave. So - thanks so much to you and @Hervé for the support! Note: once I iron out a few more problems I'll gladly share any details. Still more to be done.
  8. Happy new year to everyone and thanks again for the help provided previously. As an update on this: DVMT is confirmed as set to 128mb. Unfortunately, after many (many!) tries of every possible framebuffer / platform-id / device-id combinations for the HD615, I'm seeing that this is a problem with MrChromebox's UEFI firmware on ChromeOS devices and Mac OS Catalina. This post on InsanelyMac is from a year ago, and details exactly the same problem I've been having. Whenever framebuffer args are used, the system locks up at [IGPU] Render Compression for IOSurface is Enabled. Other users (Reddit po
  9. As an update on this... Windows reports the dedicated video memory is 128mb. We're going to see about adjusting the DVMT at the firmware level - it's possible...
  10. I'm asking the developer of the Pixelbook firmware (MrChromebox) to see if we can change that, there are no settings I can manipulate myself. Meanwhile, no other attempts have yielded any results - the only two platform-ids that work continue to be 16590000 or 01001659.
  11. Thank you! Just tried it, looks like it hangs on Render Compression for IOSurface is Enabled. I'll try the other platform ID of 01001E59 and will report back.
  12. Thank you so much, @Jake Lo - got it now. @Hervé attached is the requested file. PixelbookOSX.zip
  13. Sorry, I'm not sure I know how to do that. Can you elaborate?
  14. Here is the EFI folder: https://www.dropbox.com/s/1pfyzf8nyplr9on/efi.zip?dl=0 Attached is the kernel panic message if I attempt to use AAPL,ig-platform-id 00001E59 DATA.
  15. Noted. Thanks. Still have only 8mb VRAM. Is there any other way to specify the amount of VRAM to be used in config.plist? Thanks so much for your suggestions.
  • Create New...