FS#44003 - [linux] Garbled screen on boot
Attached to Project:
Arch Linux
Opened by Federico (fedev) - Monday, 02 March 2015, 01:05 GMT
Last edited by Doug Newgard (Scimmia) - Tuesday, 24 January 2017, 06:31 GMT
Opened by Federico (fedev) - Monday, 02 March 2015, 01:05 GMT
Last edited by Doug Newgard (Scimmia) - Tuesday, 24 January 2017, 06:31 GMT
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Details
Description:
When booting Arch (3.18.6-1-ARCH) the screen is garbled. This is because for my graphic card we require dpm enabled. Additional info: Graphics: Card: Advanced Micro Devices [AMD/ATI] Thames [Radeon HD 7500M/7600M Series] Display Server: X.Org 1.17.1 driver: N/A Resolution: 1366x768@60.10hz GLX Renderer: Gallium 0.4 on AMD TURKS GLX Version: 3.0 Mesa 10.4.5 Steps to reproduce: Boot up Arch Linux. See garbled screen. See https://bugzilla.kernel.org/show_bug.cgi?id=82431 The issue was fixed upstream some time ago however it is still present in Arch (this is fixed on OpenSUSE for example). Thank you. |
This task depends upon
Closed by Doug Newgard (Scimmia)
Tuesday, 24 January 2017, 06:31 GMT
Reason for closing: No response
Tuesday, 24 January 2017, 06:31 GMT
Reason for closing: No response
I encountered this bug first on Arch in kernel 3.1{3..6} (using the Live installer), at that point I was not sure what caused it until I bumped into again in OpenSUSE. I then created the Bugzilla report previously mentioned and used the work-around until it was fixed for OpenSUSE.
Just to double confirm, I booted up my portable OpenSUSE to double check the work-around was not in place still. It is not, it works as expected in kernel 3.18.3-1.
As for Arch, I did not test kernel 3.19 yet since I assume it should be working on 3.18.
I'll give it a test and let you know.
Thanks
Linux version 3.19.0-1-ARCH (builduser@tobias) (gcc version 4.9.2 20150204 (prerelease) (GCC) )
Thanks!
I don't think this is too difficult to get working. Basically for my GFX Card:
19: PCI 100.0: 0300 VGA compatible controller (VGA)
[Created at pci.328]
Unique ID: VCu0.dkF2+KIVH8C
Parent ID: vSkL.zuRwVyuZRN1
SysFS ID: /devices/pci0000:00/0000:00:01.0/0000:01:00.0
SysFS BusID: 0000:01:00.0
Hardware Class: graphics card
Model: "ATI Thames XT/GL [Radeon HD 7600M Series]"
Vendor: pci 0x1002 "ATI Technologies Inc"
Device: pci 0x6840 "Thames XT/GL [Radeon HD 7600M Series]"
SubVendor: pci 0x1179 "Toshiba America Info Systems"
SubDevice: pci 0xfb81
Driver: "radeon"
Driver Modules: "drm"
Memory Range: 0xb0000000-0xbfffffff (ro,non-prefetchable)
Memory Range: 0xc0000000-0xc001ffff (rw,non-prefetchable)
I/O Ports: 0x3000-0x3fff (rw)
Memory Range: 0xc0040000-0xc005ffff (ro,non-prefetchable,disabled)
IRQ: 25 (456801 events)
Module Alias: "pci:v00001002d00006840sv00001179sd0000FB81bc03sc00i00"
Driver Info #0:
Driver Status: radeon is active
Driver Activation Cmd: "modprobe radeon"
Config Status: cfg=new, avail=yes, need=no, active=unknown
Attached to: #7 (PCI bridge)
We would need to enable DPM by default with:
radeon.dpm=1
Currently this is not happening and that causes the screen to display garbled. Honestly, I'm not sure why this was fixed in OpenSUSE but still happening in Arch.
What would we need to do in order to get this to resolution?
Thanks!