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Dell Latitude 7490 Clover Catalina - Almost there, except for accelerated graphics


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Hi,

I followed the detailed instructions here to set and I am now so close. My Latitude 7490 is almost exact the same as the one the in instructions except mine has 32GB RAM and the Intel Wifi/Bluetooth card. Got everything working, even the the Wifi/Bluetooth.

 

My final challenge is that I don't seem to have accelerated graphics working from the Intel UHD 620.

Problems:

  • can't run VLC (although QuickTime works), playing MP4 has audio but video screen is just continuous blinking with no image; YouTube in chrome browser works
  • chrome rendering of some web pages (including this one) very laggy
  • Intel UHD 620 shows up in System Report, but Activity Monitor shows zero activity and zero processes for graphics
  • finally, can't seem to access graphics in GeekBench 

 

Noob, so I apologize in advance if there are obvious steps I'm missing. Thanks in advance.

 

Note I generated the debug file, per FAQ, but it's too large to upload (28MB), most of that is taken by CLOVER/kexts/ folder so I removed it from the zip.

Ken

Screen Shot 2021-03-04 at 10.00.37 AM.png

Screen Shot 2021-03-04 at 10.01.20 AM.png

Screen Shot 2021-03-04 at 10.03.42 AM.png

Screen Shot 2021-03-04 at 10.04.06 AM.png

Screen Shot 2021-03-04 at 10.05.00 AM.png

debug_19627.zip

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Looking at your posted IOReg + SysInfo data, graphics acceleration is fully functional. All is present and Ok under [email protected] in IOReg and SysInfo shows KBL graphics drivers are loaded. Your issue lies elsewhere to me. Check your BIOS settings against the recommended ones.

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Thank for taking a look.

 

I did go through BIOS setting according to guidelines here (I updated BIOS to 1.16.0 using Windows). This problem is affecting performance and impairing video applications (VLC and GeekBench). 

 

My PCI listing shows this:

[email protected] Downloads % ./dspci
Using PCI.IDs 2019.04.04
00:00.0 Host bridge [0600]: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers [8086:5914] (rev 08) (subsys 1028:081c)
00:02.0 VGA compatible controller [0300]: Intel Corporation HD Graphics 620 [8086:5916] (rev 07) (subsys 1028:081c)
00:04.0 Signal processing controller [1180]: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem [8086:1903] (rev 08) (subsys 1028:081c)
00:14.0 USB controller [0c03]: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller [8086:9d2f] (rev 21) (subsys 8086:7270)
00:14.2 Signal processing controller [1180]: Intel Corporation Sunrise Point-LP Thermal subsystem [8086:9d31] (rev 21) (subsys 1028:081c)
00:15.0 Signal processing controller [1180]: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 [8086:9d60] (rev 21) (subsys 1028:081c)
00:15.1 Signal processing controller [1180]: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #1 [8086:9d61] (rev 21) (subsys 1028:081c)
00:15.2 Signal processing controller [1180]: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #2 [8086:9d62] (rev 21) (subsys 1028:081c)
00:15.3 Signal processing controller [1180]: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #3 [8086:9d63] (rev 21) (subsys 1028:081c)
00:16.0 Communication controller [0780]: Intel Corporation Sunrise Point-LP CSME HECI #1 [8086:9d3a] (rev 21) (subsys 1028:081c)
00:16.3 Serial controller [0700]: Intel Corporation Sunrise Point-LP Active Management Technology - SOL [8086:9d3d] (rev 21) (subsys 1028:081c)
00:1c.0 PCI bridge [0604]: Intel Corporation Sunrise Point-LP PCI Express Root Port #1 [8086:9d10] (rev f1)
00:1c.2 PCI bridge [0604]: Intel Corporation Sunrise Point-LP PCI Express Root Port #3 [8086:9d12] (rev f1)
00:1c.4 PCI bridge [0604]: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 [8086:9d14] (rev f1)
00:1d.0 PCI bridge [0604]: Intel Corporation Sunrise Point-LP PCI Express Root Port #9 [8086:9d18] (rev f1)
00:1f.0 ISA bridge [0601]: Intel Corporation Sunrise Point LPC Controller/eSPI Controller [8086:9d4e] (rev 21) (subsys 1028:081c)
00:1f.2 Memory controller [0580]: Intel Corporation Sunrise Point-LP PMC [8086:9d21] (rev 21) (subsys 1028:081c)
00:1f.3 Audio device [0403]: Intel Corporation Sunrise Point-LP HD Audio [8086:9d71] (rev 21) (subsys 1028:081c)
00:1f.4 SMBus [0c05]: Intel Corporation Sunrise Point-LP SMBus [8086:9d23] (rev 21) (subsys 1028:081c)
00:1f.6 Ethernet controller [0200]: Intel Corporation Ethernet Connection (4) I219-LM [8086:15d7] (rev 21) (subsys 1028:081c)
01:00.0 (null) [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader [10ec:525a] (rev 01) (subsys 1028:081c)
02:00.0 Network controller [0280]: Intel Corporation Wireless 8265 / 8275 [8086:24fd] (rev 78) (subsys 8086:0050)
3c:00.0 Non-Volatile memory controller [0108]: Micron Technology Inc (null) [1344:5405] (subsys 1344:0100)

 

The graphics 620 line is similar to what you showed, except the hex address is 8086:5916 (yours is 5917). After many hours, I'm nearly out of ideas and options to try. Unfortunately, this issue is close to a deal breaker. If I can't get over this, it would mean Linux or...back to Windows on this machine for me, something I really want to avoid after coming so close get this together.

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There are limitation to the Intel Wifi kext. You might want to try using the ethernet connection to do your testing to sort out the issue.

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