Re: USB mouse hiccups (was RFD: Kernel release numbering)

Re: USB mouse hiccups (was RFD: Kernel release numbering)

[Andrew Morton]

Guys, we seem to have a tridentfb regression in 2.6.12-rc1.

viking <viking@flying-brick.caverock.net.nz> wrote:
>
> Also (and this is something I've noticed since I tried tridentfb) the video
>  buffer never seems to get cleared, except when I change virtual terminals,
>  then change back to the terminal concerned. THEN it's cleared. So for the
>  moment, I've gone back to using VESAfb.


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Re: Re: USB mouse hiccups (was RFD: Kernel release numbering)

[Antonino A. Daplas]

On Tuesday 22 March 2005 04:44, Andrew Morton wrote:
> Guys, we seem to have a tridentfb regression in 2.6.12-rc1.
>
> viking <viking@flying-brick.caverock.net.nz> wrote:
> > Also (and this is something I've noticed since I tried tridentfb) the
> > video buffer never seems to get cleared, except when I change virtual
> > terminals, then change back to the terminal concerned. THEN it's cleared.
> > So for the moment, I've gone back to using VESAfb.
>

Smells like a fillrect problem.

1. First, can you do an fbset and make sure that yres_virtual and yres are
the same? If you run fbset -i, in the line that starts with 'geometry', the
2nd and 4th number should be the same (or have a difference not more than
7). This disables ypan.

mode "800x600-85"
    # D: 56.252 MHz, H: 53.676 kHz, V: 85.065 Hz
    geometry 800 600 832 32767 8
                 ^^^      ^^^    <- same number

If not the same, do:

fbset -vyres n

where n: is equal to the vertical resolution

2. If you still get a non-clearing display, then check if
CONFIG_FB_TRIDENT_ACCEL is set to y.  If it is, set it to n. Recompile and
reboot.

3. Please send your .config, dmesg, lspci -vvv, and fbset -i.

4. What is the last kernel version where tridentfb worked for you?

BTW, there are no major changes in tridentfb for months, so I'm surprised
about this regression.

Tony
 




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Tridentfb troubles

[viking]

On Mon, Mar 21, 2005 at 12:44:26PM -0800, Andrew Morton wrote:
> 
> Guys, we seem to have a tridentfb regression in 2.6.12-rc1.
> 
> viking <viking@flying-brick.caverock.net.nz> wrote:
> >
> > Also (and this is something I've noticed since I tried tridentfb) the video
> >  buffer never seems to get cleared, except when I change virtual terminals,
> >  then change back to the terminal concerned. THEN it's cleared. So for the
> >  moment, I've gone back to using VESAfb.

**********
Actually, it's in every release I've ever tested. 
**********

I hadn't mentioned it before, because vesafb does what I want, apart from not
being resizable.  I have a Apollo MVP4, VIA686A (or B) video chipset, though
the Video shows itself as a CyberBlade/i7:

brick$ lspci -v -v
...
01:00.0 VGA compatible controller: Trident Microsystems CyberBlade/i7 (rev 5d)
(prog-if 00 [VGA])
Subsystem: FIRST INTERNATIONAL Computer Inc: Unknown device 9915
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping-
SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 32
Interrupt: pin A routed to IRQ 10
Region 0: Memory at e5800000 (32-bit, non-prefetchable) [size=8M]
Region 1: Memory at e6000000 (32-bit, non-prefetchable) [size=128K]
Region 2: Memory at e5000000 (32-bit, non-prefetchable) [size=8M]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [80] AGP version 1.0
Status: RQ=33 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW- AGP3-
Rate=x1,x2
Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP- GART64- 64bit- FW- Rate=<none>
Capabilities: [90] Power Management version 1
Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-


I have via-agp and agpgart loaded, though those aren't for 2d. Not sure what
else to tell you, to be honest. If I put BOTH the vesafb AND the tridentfb
into the kernel, and select vesafb on lilo (video=vesafb:mtrr,ypan), the
kernel boots up using tridentfb regardless.

The 640x480-60 (the one the kernel seems to boot up on unless told otherwise)
screenmode looks absolutely shocking, with a very wiggly screen mainly in the
X direction. That's probably due to the definition in drivers/video/modedb.c,
something I can either tweak myself, or avoid using.

I'll do more testing, see what I come up with aside from that. You may need to
tell me what other details you want though.

Andrew - you still wish to be CC:ed on this video issue?

-- 
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Re: Tridentfb troubles

[Andrew Morton]

viking <viking@flying-brick.caverock.net.nz> wrote:
>
> Andrew - you still wish to be CC:ed on this video issue?

Yes please.


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Re: Re: USB mouse hiccups (was RFD: Kernel release numbering)

[Andrew Morton]

"Antonino A. Daplas" <adaplas@hotpop.com> wrote:
>
> On Tuesday 22 March 2005 04:44, Andrew Morton wrote:
> > Guys, we seem to have a tridentfb regression in 2.6.12-rc1.
> >
> > viking <viking@flying-brick.caverock.net.nz> wrote:
> > > Also (and this is something I've noticed since I tried tridentfb) the
> > > video buffer never seems to get cleared, except when I change virtual
> > > terminals, then change back to the terminal concerned. THEN it's cleared.
> > > So for the moment, I've gone back to using VESAfb.
> >
> 
> Smells like a fillrect problem.
> 
> 1. First, can you do an fbset and make sure that yres_virtual and yres are
> the same? If you run fbset -i, in the line that starts with 'geometry', the
> 2nd and 4th number should be the same (or have a difference not more than
> 7). This disables ypan.
> 
> mode "800x600-85"
>     # D: 56.252 MHz, H: 53.676 kHz, V: 85.065 Hz
>     geometry 800 600 832 32767 8
>                  ^^^      ^^^    <- same number
> 
> If not the same, do:
> 
> fbset -vyres n
> 
> where n: is equal to the vertical resolution
> 
> 2. If you still get a non-clearing display, then check if
> CONFIG_FB_TRIDENT_ACCEL is set to y.  If it is, set it to n. Recompile and
> reboot.
> 
> 3. Please send your .config, dmesg, lspci -vvv, and fbset -i.
> 
> 4. What is the last kernel version where tridentfb worked for you?
> 
> BTW, there are no major changes in tridentfb for months, so I'm surprised
> about this regression.
> 

Guys, is this problem still present in 2.6.12-rc5?

Thanks.


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Re: Re: USB mouse hiccups (was RFD: Kernel release numbering)

[James Simmons]

> > If not the same, do:
> > 
> > fbset -vyres n
> > 
> > where n: is equal to the vertical resolution
> > 
> > 2. If you still get a non-clearing display, then check if
> > CONFIG_FB_TRIDENT_ACCEL is set to y.  If it is, set it to n. Recompile and
> > reboot.
> > 
> > 3. Please send your .config, dmesg, lspci -vvv, and fbset -i.
> > 
> > 4. What is the last kernel version where tridentfb worked for you?
> > 
> > BTW, there are no major changes in tridentfb for months, so I'm surprised
> > about this regression.
> > 
> 
> Guys, is this problem still present in 2.6.12-rc5?

Anyone with a trident card out there?



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Re: Re: USB mouse hiccups (was RFD: Kernel release numbering)

[Lars Tobias Børsting]

James Simmons <jsimmons@www.infradead.org> writes:

> Anyone with a trident card out there?

I have an old laptop with a Trident CyberBlade Ai1 integrated on an
ALI-chipset lying around. Happy to help. Just joined this list, though,
so I don't have the rest of this thread.

-- 
Regards,

Lars Tobias Børsting



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