[Work] Fwd: Pomoc pri rjesavanju problema sa HP racunalom na Linuxu

Wed Aug 8 10:36:44 CEST 2012

Bok!

Ima li tko u Zagrebu da malo pogleda o cemu se radi i pomogne ljudima. Bar
kakav hint mailom. Ja sam pokusao, ali nista nasao nesto pametno, a mobilni
pristup netu na obali nije bas neki.
Ako to rijese opremili bi tim modelom svoje ucionice, vidi zadnje retke.

Pozdrav,

Milan
---------- Forwarded message ----------
From: "HSIN" <hsin at hsin.hr>
Date: Aug 2, 2012 12:08 PM
Subject: Pomoc pri rjesavanju problema sa HP racunalom na Linuxu
To: <milan at linux.hr>

**
Postovani g. Rajacic,

sukladno telefonskom razgovoru, dostavljamo Vam opis problema i hardverske
specifikacije doticnog racunala.

*Kratki opis problema:*
Problem se javlja pri visokim rezolucijama (1600x900) sa grafickom
karticom. Pojavljuju se treptece horizontalne crte preko cijelog ekrana kao
da nije pogodjena frekvencija osvjezavanja. Problem je isti na razlicitim
ditribucijama (pokusali smo sa zadnjim Debianom i Ubuntuom). Takodjer i
nekoliko drivera (intel, i915,..) daju iste rezultate. Jedino VESA radi
dobro, medjutim nema visoke rezolucije. Takodjer smo pokusali i
konfigurirati Xorg server, medjutim sa forsiranjem nekog odredjenog moda,
GDM se uopce ne pokrece nego izbacuje gresku "Cannot open display". Najveci
progres smo dobili sa konzolom i *uvesafb* driverom, pri cemu je rezolucija
dobra (1600x900) i nema flickera, medjutim cim se pokrene graficko sucelje,
rezolucija se opet vrati na 800x600.

*Hardware info:*
Radi se o HP All-in-One racunalu sljedecih specifikacija:

product: HP Pro 3420 AiO PC
vendor: Hewlett-Packard
Motherboard: Quanta / 2AC5
BIOS: AMI version: LEO_707 (11/17/2011)
CPU: Intel(R) Pentium(R) CPU G630 @ 2.70GHz
Chipset: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express
Display:
             description: VGA compatible controller
             product: 2nd Generation Core Processor Family Integrated
Graphics Controller
             vendor: Intel Corporation
             Subsystem: Hewlett-Packard Company Device 2ac5
             physical id: 2
             bus info: pci at 0000:00:02.0
             version: 09
             width: 64 bits
             clock: 33MHz
             capabilities: msi pm vga_controller bus_master cap_list
             configuration: latency=0
             resources: memory:fe000000-fe3fffff memory:c0000000-cfffffff
ioport:f000(size=64)

Ovo prijavljuje "dmesg" prilikom inicijalizacije:
[    4.336583] pci 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[    4.336587] pci 0000:00:02.0: setting latency timer to 64
[    4.365978] mtrr: type mismatch for c0000000,10000000 old: write-back
new: write-combining
[    4.365980] [drm] MTRR allocation failed.  Graphics performance may
suffer.
[    4.366190] pci 0000:00:02.0: irq 46 for MSI/MSI-X
[    4.366194] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[    4.366195] [drm] No driver support for vblank timestamp query.
[    4.368498] cfg80211: Calling CRDA to update world regulatory domain
[    4.423755] acpi device:34: registered as cooling_device2
[    4.423909] input: Video Bus as
/devices/LNXSYSTM:00/device:00/PNP0A08:00/LNXVIDEO:00/input/input4
[    4.423963] ACPI: Video Device [GFX0] (multi-head: yes  rom: no  post:
no)
[    4.423990] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on
minor 0

Ovo je Xorg.conf:
Section "Device"
        Identifier  "Card0"
        Driver      "intel"
        VendorName  "Intel Corporation"
        BoardName   "Sandy Bridge Integrated Graphics Controller"
        BusID       "PCI:0:2:0"
EndSection
Ovo prijavljuje framebuffer:
    02: None 00.0: 11001 VESA Framebuffer
          [Created at bios.464]
          Unique ID: rdCR.QgFYtsmQZBC
          Hardware Class: framebuffer
          Model: "Intel(R) Sandybridge/Ivybridge Graphics Controller"
          Vendor: "Intel Corporation"
          Device: "Intel(R) Sandybridge/Ivybridge Graphics Controller"
          SubVendor: "Intel(R) Sandybridge/Ivybridge Graphics Chipset
Accelerated VGA BIOS"
          Revision: "Hardware Version 0.0"
          Memory Size: 63 MB + 960 kB
          Memory Range: 0xc0000000-0xc3feffff (rw)
          Mode 0x0360: 1600x900 (+1600), 8 bits
          Mode 0x0361: 1600x900 (+3200), 16 bits
          Mode 0x0362: 1600x900 (+6400), 24 bits
          Mode 0x0305: 1024x768 (+1024), 8 bits
          Mode 0x0317: 1024x768 (+2048), 16 bits
          Mode 0x0318: 1024x768 (+4096), 24 bits
          Mode 0x0312: 640x480 (+2560), 24 bits
          Mode 0x0314: 800x600 (+1600), 16 bits
          Mode 0x0315: 800x600 (+3200), 24 bits
          Mode 0x0301: 640x480 (+640), 8 bits
          Mode 0x0303: 800x600 (+832), 8 bits
          Mode 0x0311: 640x480 (+1280), 16 bits
          Mode 0x037d: 1600x900 (+1600), 8 bits
          Mode 0x037e: 1600x900 (+3200), 16 bits
          Mode 0x037f: 1600x900 (+6400), 24 bits
          Config Status: cfg=new, avail=yes, need=no, active=unknown
Ukoliko trebate detaljnije informacije o hardwareu, u prilogu se nalazi
ispis "hwinfo".

Molimo vas da se raspitate medju kolegama o mogucnosti rjesavanja ovog
problema, jer nam racunalo po ostalim performansama odgovara za
sastavljanje buduce ucionice za pripreme i natjecanja informatickih
olimpijaca.

Unaprijed zahvaljujemo,
uz pozdrave,

Aron Bohr, strucni suradnik
Ivo Separovic, tajnik HSIN-a
---
Hrvatski savez informatičara
Dalmatinska 12, 10000 Zagreb
Tel. 01/48-48-768, tel./fax. 01/48-48-770
http://www.hsin.hr
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