Mavericks scrambled screen

[matuskela]

Sorry for my english.

I managed to install 10.9.5 on my laptop mavericks, is even with graphics acceleration, but the screen is with artifacts as image attachment.

My settings:

Lenovo notebook G400s

Processor i7 - 3612 QM - 2:10 GHZ

8G memory

T 1 HD

Video Resolution: 1366x768

I do not know what else to do, just need it to work.

[artur-pt]

hello

i have the same problem in my lenovo and exist also with other laptops

solution

use ig-platform-id 4

and this patch

 

 

that is for clover

with chameleon must do that find and replace in kext (hexfriend)

good hack

[matuskela]

hello

i have the same problem in my lenovo and exist also with other laptops

solution

use ig-platform-id 4

and this patch

 

LegacyATI4800Controller.kext.zip

[artur-pt]

hello

should boot

-f

to rebuild caches

and the platform is 0x01660004

maybe the kext is loaded is the one in caches..

good hack

[matuskela]

hello

should boot

-f

to rebuild caches

and the platform is 0x01660004

maybe the kext is loaded is the one in caches..

good hack

 

Many thanks Artur-pt!

Follow their guidelines, as I am using chameleon, needed just reinstall the patched kext (preferably with kext utility or similar) and use the following flags:

GraphicsEnabler = Yes = No IGPEnabler IGPlatformID = 01660004

I'm posting a kext corrected again (correct me if I can not do this) to anyone who has problems with artifacts on the screen in Lenovo G400s.

Just missing test the HDMI output, I'll do that when I get home and post the results.

Thank you dear Artur-pt!

AppleIntelFramebufferCapri.kext.zip

[matuskela]

So far working, but I can not image the HDMI output, will have a solution?

[artur-pt]

hello

for now .. no solution..

good hack

[matuskela]

Hello everyone!

I need to work on HDMI , use an external display .

[matuskela]

Hello!

I now installed Yosemite, everything is working in lenovo g400s but the problem with the artifacts on the screen continues ; It is having acceleration but the artifacts there . Note : need the HDMI port. Is there solution?

[mendietinha]

hdmi only using fb=3. and with 3 you will have that problem.

[matuskela]

Hi Mendietinha!

I'm using the flag IGPlatformID = 01660003 would it? 1080p HDMI port works but the notebook screen is with artifacts , if I change from 1080p to 720p both work without the artifacts but at 720p , but for this to work I have to go there in the display settings , putting 1080p and return 720p as soon linking it comes with independent video configuration artifacts. Remembering that I am using the original kext AppleIntelFramebufferCapri unedited in Yousemite .

[mendietinha]

no need edits. you have what you have with fb=3. artifacts. must deal with it if you need hdmi.

[matuskela]

no need edits. you have what you have with fb=3. artifacts. must deal with it if you need hdmi.

 

When you say "FB = 3" means a specific flag ? Do these artifacts may damage the video or the board over time ?

[MarceloMustaine]

When you say "FB = 3" means a specific flag ? Do these artifacts may damage the video or the board over time ?

 

He means IntelCapriFB=3 for the HD4k on chameleon...

[matuskela]

There is a problem of damaging the graphics card in notebook using with the artifacts ? For the hdmi port will not be with the artifacts and the notebook screen I'll close and work with only the TV to HDMI . It can damage something the being with artifacts on display closed ?