Moderators Jake Lo Posted December 7, 2016 Moderators Share Posted December 7, 2016 You'll need to restore the vanilla AppleIntelBDWGraphicsFramebuffer.kext if you have previously patched it. Link to comment Share on other sites More sharing options...
njbhvgfcd Posted December 7, 2016 Share Posted December 7, 2016 It worked! Thank you Link to comment Share on other sites More sharing options...
njbhvgfcd Posted December 13, 2016 Share Posted December 13, 2016 I got everything working other than the integrated Broadcom 5880 smartcard reader - there even is a driver included in macOS Sierra, but it is not showing up in the USB device tree to begin with and the driver reports no hardware found. Is this a hardware issue? I wouldn't need the wireless RFID function, just the smartcard slot. (If only I could find an antiglare+fullhd+IPS screen for this nice e7250, instead of the bad panel installed now, that's bothering me more than the smartcard reader.) Link to comment Share on other sites More sharing options...
Administrators Bronxteck Posted December 13, 2016 Administrators Share Posted December 13, 2016 on the old dell D620/630 you where able to just swap in a higher resolution screen lid but you had to make sure you got it with it's cable. seems others have swapped the screen itself here http://forum.notebookreview.com/threads/e7250-e7240-screen-upgrade-possibility-fhd-ips-matte.775211/ Link to comment Share on other sites More sharing options...
njbhvgfcd Posted December 14, 2016 Share Posted December 14, 2016 Now I discovered a new issue: When I turn off the screen or close the lid and wait for at least two minutes, when I try to use it again the screen will turn on but remain blank, or after a while show the login window and hang with the spinning ball of death while the hdd led is going crazy. After resetting the laptop I find the same log entry over and over again: "com.apple.xpc.launchd.domain.user: Service sets EnableTransactions=false and EnablePressuredExit=true, which makes no sense. Enabling Transactions." I can reproduce this about every second time I turn off the screen. I turned off any hibernation/standby and even installed the SleepLess utility to prevent sleep with lid closed, and I verified that I can still ping the laptop with the lid closed. (Power light stays on too of course.) So it's not a standby issue. Forget the smart card reader, that's a luxury. But turning the screen off is a bare minimum to work with a laptop... thanks! Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted December 14, 2016 Moderators Share Posted December 14, 2016 What version of BIOS are you running? I don't have these issues on my E7250. Perhaps we could try exporting the raw files and repatching the new DSDT/SSDT. Link to comment Share on other sites More sharing options...
njbhvgfcd Posted December 15, 2016 Share Posted December 15, 2016 It's running the latest BIOS, A14, that it came with. To make sure it's not an issue with the lock screen, I disabled that so that I end up on the desktop upon turning on the display. And that works, except that I too get the spinning ball there and it hangs forever. What exactly can I do? A pointer in the right direction would be more than enough, but I am not sure what exporting raw files means. Thanks! Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted December 15, 2016 Moderators Share Posted December 15, 2016 Boot to Clover GUI, hit F4, this will extract the raw files (SSDT/DSDT unpatched). Send me the Origin folder Link to comment Share on other sites More sharing options...
njbhvgfcd Posted December 16, 2016 Share Posted December 16, 2016 Here is the origin folder.Now that I have a 4k capable displayport cable I noticed that video playback is very limited, both 1080p x264 and 4k videos are stuttering a lot. But that might be a limitation of the laptop, not indicating a problem with the Sierra. (When I read that the cpu is capable of 4k playback I assumed that refers to playing 4k material on a 4k screen...) I'll test this with linux/windows perhaps, just to make sure.Otherwise I am happy to see that even a 4k screen is supported out of the box, at 60Hz. origin.zip Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted December 17, 2016 Moderators Share Posted December 17, 2016 Patched for Bios v A14 E7250_A14.zip Link to comment Share on other sites More sharing options...
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