| Bug ID | 101483 |
|---|---|
| Summary | A10-8780P (Carrizo) + R7 M260/M265 does not boot without any "workaround" parameter. |
| Product | DRI |
| Version | XOrg git |
| Hardware | x86-64 (AMD64) |
| OS | Linux (All) |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | DRM/AMDgpu |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | lx@o2mail.de |
This bug has been reported at launchpad.net, #163915 My notebook is a HP Pavilion 17-g164ng with an AMD A10-8780P APU. The sytem (Ubuntu 16.04.2, kernel 4.8.0, UEFI) does not work when not booted using workaround parameters: nomodeset: resolution 800x600 nomodeset xforcevesa: 1600x900 (optimal resolution) amd_iommu=off: "boot finished" sound within a minute, black screen, ssh login possible no parameter: no boot, no (remote) access, no dmesg, shut down by pressing off button for several seconds. I have reported this bug at launchpad.net on 2016-11-05. At that time I used 16.04.1, kernel 4.4.0. While booting, the screen was black, one flash, black backlight on-off-on. After more than three minutes, remote (ssh) access was possible, reboot by SysRQ B. Recently I tested upstream kernels. The results depend on the update-state of the installation. Using installed Version 16.04.2, kernel 4.8.0-36 for installation of the upstream kernel, booting without workaround parameter: "boot finished" sound after 45 sec., screen black, no further HDD activity, ssh login possible, SysRQ reaction. Using the actual, updated system, kernel 4.8.0-54 for installation of the upstream kernel, booting without workaround parameter: no "boot finished" sound, no remote login (ssh). Reboot/shutdown by SysRQ keys after about 3 minutes possible.
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