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I have a new laptop Acer Travelmate P-255 MG which had linpus Linux on it, and has a graphics card:

  • Name: AMD Radeon 8750M
  • Vendor ID: 1002
  • Devicde ID: 6600

I installed Windows 7 x64 on it, and I got all the drivers from Acer support website, but after installing the AMD driver I still see the Standard VGA Adapter in the device manager with another listing showing AMD Radeon 8750 but with a yellow triangle, when I double click on it I get this message:

Windows has stopped this device because it has reported problems. (Code 43)

I tried uninstalling and reinstalling multiple times, I also got the lastest driver from amd.com without resolving the issue.

So how can I find what's the problem ? and how can I check if I have hardware problems or software problems ?

  • Are you downloading the drivers released by and or acer? – Ramhound Mar 27 '14 at 9:45
  • Interesting issue - can I assume when you had Linux on it, there was no issue? And I'm not being rude, but are you downloading the 64bit version (if there is one) – Dave Mar 27 '14 at 9:47
  • @Ramhound I tried both drivers, the version on the amd website is newer that's the only difference. – Pierre Mar 27 '14 at 9:47
  • @DaveRook I had linpus linux without any GUI, and I didn't use it much so I don't know if it was working before, I have have a Debian Live USB with Gnome 3, I'll try it when I get home and post back, but how can I check from Debian if it's working fine ? – Pierre Mar 27 '14 at 9:49
  • We need to know additional details from the installation log – Ramhound Mar 27 '14 at 9:50
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Like I said in the question in the device manager there are 2 devices:

  • AMD Radeon 8750M
  • Standard VGA Graphics Adapter (which is an Intel card, with the standard driver that comes with windows 7)

I was checking the BIOS, where I had 2 options for Graphics Mode:

  • Switchable (default)
  • Integrated

When I set it to integrated it disables the AMD card and the laptop uses the Intel card alone, so I searched about it and it seems that the laptop has 2 graphics controllers one of them which is the Intel controller is used for low power usage while the other one which is the AMD controller is used for games or any other applications that require high graphics performance, so the computer switches between them depending on the applications and if the power is plugged in.

So when I installed the driver for the Intel controller, the yellow triangle on the AMD device was removed and everything worked fine, so maybe it was reporting a problem because it needed the driver of the Intel controller because they're meant to work together.

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